3Zr-Fae Engine Control System. Dtc P1604 Startability Malfunction

This DTC is stored when the engine does not start even though the STA signal is input or when the engine takes a long time to start, and when the engine speed is low or the engine stalls just after the engine starts.
Using the intelligent tester, the conditions present when the DTC was stored can be confirmed by referring to the freeze frame data. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
It is necessary to check if the vehicle ran out of fuel before performing troubleshooting, as this DTC is also stored when there is engine starting trouble due to running out of fuel.

DTC No.	DTC Detection Condition	Trouble Area
P1604	Either condition is met: The engine speed is less than 500 rpm with the STA signal on for a certain amount of time (refer to the illustration below) (1 trip detection logic). After the engine starts (engine speed is 500 rpm or more), the engine speed drops to 200 rpm or less within approximately 2 seconds (1 trip detection logic).	Immobiliser system Engine assembly (excess friction, compression loss) Starter assembly Crankshaft position sensor Camshaft position sensor Engine coolant temperature sensor Fuel pump Fuel pump control system Fuel pipes Fuel injector Throttle body assembly Fuel pressure regulator Battery Drive plate (for CVT) Flywheel sub-assembly (for M/T) Spark plug Ignition coil circuit Intake system Camshaft timing oil control valve Mass air flow meter Air fuel ratio sensor Valve timing Continuously variable valve lift controller assembly Fuel Purge VSV Intake valve Exhaust valve ECM

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.3Zr-Fae Engine Control System.Sfi System.
Dtc
P1604 Startability Malfunction

INSPECTION PROCEDURE

HINT:

In contrast to normal malfunction diagnosis for components, circuits and systems, DTC P1604 is used to determine the malfunctioning area from the problem symptoms and freeze frame data when the user mentions problems such as starting difficulty.
As these DTCs can be stored as a result of certain user actions, even if these DTCs are output, if the customer makes no mention of problems, clear these DTCs without performing any troubleshooting and return the vehicle to the customer.
If any other DTCs are output, perform troubleshooting for those DTCs first.
When the Data List item "Immobiliser Fuel Cut" is ON, the engine cannot be started.
Read freeze frame data using the intelligent tester. Freeze frame data records engine conditions when a malfunction occurs. This information can be useful when troubleshooting.
When confirming the freeze frame data, be sure to check all 5 sets of freeze frame data (RAV4_ACA30 RM000000PDS0ISX.html).
When confirming freeze frame data, if there are multiple items related to the cause of the malfunction, perform troubleshooting for all related items.
Try to start the vehicle under the conditions recorded in the freeze frame data which were present when the malfunction occurred. Confirm the data at this time and compare it with the freeze frame data.
If the malfunction does not reoccur, carefully check the vehicle conditions from when the malfunction occurred using freeze frame data.
When performing inspections, jiggle the relevant wire harnesses and connectors in an attempt to reproduce malfunctions that do not always occur.
If the same inspection or replacement procedure appears 2 times when performing an inspection procedure, it is not necessary to repeat the procedure the second time.

Malfunction Recurrence and Inspection Areas

Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown.
1. The engine speed recorded in the freeze frame data is 0 rpm (the engine does not crank).
  HINT:
  One of the following problems may be present: battery depletion, excess engine friction, a starter malfunction or a crankshaft position sensor malfunction.
  1. If the battery voltage is below 6 V during cranking, there is a high probability that engine friction is abnormal.
  2. If the battery voltage drops to 5 V or less when starting the engine, the battery may be malfunctioning.
  3. If the battery voltage fluctuates while cranking the engine, it can be concluded that cranking is being performed. When the engine speed is 0 rpm, the crankshaft position sensor and/or an ECM may be malfunctioning.
2. All engine speeds recorded in the freeze frame data are between 100 and 250 rpm (the engine cranks but there is no combustion).
  HINT:
  If the engine speed is between 100 and 250 rpm (no initial combustion), there may be a wiring problem or a complete failure of an ignition or fuel system part.
  1. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and the engine may not be able to be started.
3. The engine speed recorded in the freeze frame data is 250 rpm or more (the initial combustion and starter turnoff timing is too late).
  HINT:
  If the engine speed is 250 rpm or more (combustion occurs but the initial combustion and starter turnoff timing is too late), the fuel injection volume is often incorrect (too low or too high) and determining the cause of the malfunction is often difficult.
  1. Due to an engine coolant temperature sensor malfunction, the fuel injection volume is extremely high or low and engine starting trouble may occur.
  2. If Long FT is incorrect, there may be a fuel supply problem due to the injectors or fuel pump being clogged, etc.
  3. If the engine cranking speed is too high, compression loss may have occurred due to carbon interfering with the valve operation.
When the malfunction (starting difficulty) can be reproduced, or malfunction conditions are known, perform the following inspections ("Problem symptoms" and "Systems to inspect")
1. Problem symptoms
  1. The engine does not crank.
    HINT:
    The starter is normal if a noise that indicates the starter pinion gear is extending is heard. The battery may be fully depleted or there may be excess engine friction.
  2. The engine cranking speed is abnormal.
    HINT:
    If the engine cranking speed is too high (for example, 300 rpm or more with no combustion), compression loss may have occurred because carbon interfered with valve operation, etc.
  3. There is no initial combustion.
    HINT:
    If there is no initial combustion, there is probably a wiring problem or an ignition or fuel system part malfunction.
  4. The engine stalls after starter turnoff.
    HINT:
    If the engine stalls after starter turnoff, the air-fuel ratio may be incorrect or the VVT may have a problem returning.
  5. The initial combustion and starter turnoff occur late.
    HINT:
    If the initial combustion and starter turnoff occur late, the fuel injection volume is probably incorrect (too low or too high).
    HINT:
    Causes of fuel system malfunctions according to conditions present at the time of the malfunction.
    1. When 2 to 3 minutes have elapsed after stopping the engine: Fuel pressure loss due to the fuel pressure regulator failing to maintain the fuel pressure.
    2. When 15 to 120 minutes have elapsed after stopping the engine: Problem with injector fuel seal.
    3. When a long time has elapsed after stopping the engine: Fuel pressure regulator is stuck open.
2. Systems to inspect.
  1. Intake system
  2. Ignition system
  3. Fuel system

INSPECTION FLOW

Freeze frame data exists, but the malfunction (starting difficulty) has not reoccurred and the malfunction conditions are unknown.

Freeze Frame Data Item	Result	Suspected Area	Procedure
Engine Speed	0 rpm (no engine cranking at all)	Battery fully depleted Engine assembly (excess friction) Starter assembly Immobiliser system Crankshaft position sensor ECM	4 to 9
	100 to 250 rpm (engine cranks but no initial combustion*1)	Fuel pump control system Ignition system Engine coolant temperature sensor Fuel injection system	10 to 14
	250 rpm or more (combustion occurs but initial combustion and starter turnoff*2 occur late)	Engine assembly (compression loss) Fuel injection system Fuel pump control system	16 to 24

HINT:

*1: First combustion after cranking begins.
*2: Condition when engine speed increases and starter can be turned off.

When the malfunction (starting difficulty) can be reproduced, or when malfunction conditions are known.

Problem symptoms

Problem Symptom	Suspected Area	Suspected Component	Procedure
The engine does not crank	Battery malfunction	Battery fully depleted	27 to 32
	Starting system	Starter (includes pinion gear wear or tooth damage) Starting system
	Immobiliser system	Immobiliser system
	Engine assembly	Engine assembly (excess friction) Drive plate wear or tooth damage (for CVT) Flywheel wear or tooth damage (for M/T)
Cranking speed too low	Battery malfunction	Battery fully depleted	33 to 35
	Starting system	Starter assembly
	Engine assembly	Engine assembly (excess friction)
Cranking speed too high	Engine assembly	Engine assembly (compression loss)
There is no initial combustion	Fuel supply problem	Maintenance of fuel pressure by fuel pressure regulator Fuel injector leak Fuel leak from fuel line Fuel pump control system Fuel pump	36 to 51
There is no initial combustion	Ignition system malfunction	Spark plug Crankshaft position sensor Ignition coil	36 to 51
Engine stalls after starter turnoff	Air suction	Intake system connections	52 to 58
	Deposits in throttle body assembly	Throttle body assembly
	VVT valve does not return properly	Camshaft timing oil control valve assembly VVT system
	Mass air flow meter malfunction	Mass air flow meter
The initial combustion and starter turnoff occur late	Engine coolant temperature sensor malfunction	Engine coolant temperature sensor	59 to 73
	Mass air flow meter malfunction	Mass air flow meter
	Abnormal air fuel ratio learning value	Air fuel ratio sensor
	Deviation from fuel injection characteristics	Fuel injector
	Wet-fouled or dry-fouled spark plug	Spark plug
	Lack of fuel pressure	Fuel pressure regulator Fuel pump Fuel pump control system

Systems to inspect

Troubleshooting by System	Suspected Area	Suspected Component	Procedure
Fuel system troubleshooting A	Abnormal air fuel ratio learning value	Fuel injector	90 to 97 98 to 105
	Rough idling	Crankshaft position sensor
	Abnormal fuel pressure	Fuel Fuel leak from fuel line Fuel pump Fuel pressure regulator
Fuel system troubleshooting B	Abnormal concentration of HC in surge tank	Purge VSV system Fuel injector	106 to 108
Fuel system troubleshooting C	Injection signal system malfunction	Fuel injector Crankshaft position sensor Camshaft position sensor ECM	75 to 79
Intake system troubleshooting	Difference between ISC target value and opening angle when idling	Engine assembly (compression loss) Valve timing Engine coolant temperature sensor ECM	87 to 89 109 to 111
Ignition system troubleshooting	Camshaft and/or crankshaft position sensor signal malfunction	Crankshaft position sensor system (including sensor installation) Camshaft position sensor system (including sensor installation) ECM	80 to 86 112 to 118

NOTICE:

Inspect the fuses for circuits related to this system before performing the following inspection procedure.

1.CHECK ANY OTHER DTCS OUTPUT AND RECORD FREEZE FRAME DATA (IN ADDITION TO DTC P1604)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / DTC.

Read the DTCs and record the Freeze Frame Data.
HINT:
1. This freeze frame data shows the actual engine conditions when engine starting trouble occurred.
2. When confirming the freeze frame data, be sure to check all 5 data sets of freeze frame data.
3. The fourth set of freeze frame data is the data recorded when the DTC is stored.
Result
Result
Proceed to
Only DTC P1604 is output
A
DTCs other than P1604 are output
B

GO TO DTC CHART (RAV4_ACA30 RM000000PDF0FMX.html)

A

2.CHECK ENGINE IMMOBILISER SYSTEM

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Immobiliser Fuel Cut.

Read the value displayed on the tester.
OK:
Immobiliser Fuel Cut is OFF
Result
Result
Proceed to
OK
A
NG (w/ Entry and Start System)
B
NG (w/o Entry and Start System)
C
HINT:
If the engine is cranked immediately after reconnecting the battery cable (key verification for immobiliser system not completed), the engine cannot be started. Key verification needs to wait for several seconds after turning the ignition switch to ON.

REPAIR ENGINE IMMOBILISER SYSTEM (RAV4_ACA30 RM000001RLT005X.html)

REPAIR ENGINE IMMOBILISER SYSTEM (RAV4_ACA30 RM000001TC900GX.html)

A

3.CHECK MALFUNCTION CONDITION

Confirm the problem symptoms.

Result
Result	Proceed to
Freeze frame data exists, but the problem symptoms cannot be reproduced and the malfunction conditions are unknown	A
The problem symptoms can be reproduced, or the malfunction conditions are known	B

Go to step 26

A

4.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604		Suspected Area	Proceed to
Engine Speed	Battery Voltage	Suspected Area	Proceed to
All 0 rpm (no engine cranking at all)	Minimum voltage is below 5 V	Battery fully depleted	A
All 0 rpm (no engine cranking at all)	Minimum voltage is 5 V or higher	Starter malfunction Crankshaft position sensor system Excess engine friction Immobiliser system ECM	B
100 to 250 rpm (engine cranks but no initial combustion)	-	Fuel pump control system Ignition system Engine coolant temperature sensor Immobiliser system Fuel injection system	C
250 rpm or more (combustion occurs but initial combustion and starter turnoff occur late)	-	Engine assembly Fuel injection system Fuel pump control system	D

HINT:

When DTC P1604 is stored, either "Engine Start Hesitation"*1 or "Low Rev for Eng Start"*2 in the Freeze Frame Data will be ON. If "Low Rev for Eng Start" is ON, proceed to E.

*1: This value turns ON when the engine speed does not reach a certain value for a certain period of time when starting the engine.

*2: This value turns ON when the engine stalls immediately after starting the engine. If "Low Rev for Eng Start" is ON, as there is a possibility that the low engine speed or engine stall was caused by the user, confirm the following freeze frame data items.

Immobiliser Fuel Cut
Engine Speed (Starter off)
Shift SW Status (R, D Range) (for CVT)

CHARGE OR REPLACE BATTERY

5.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604	Result	Suspected Area	Proceed to
Battery Voltage	Minimum voltage is 6 V or higher and voltage does not fluctuate*1	Starter system (w/ Entry and Start System)	A
		Starter system (w/o Entry and Start System)	B
	Minimum voltage is 6 V or higher and voltage fluctuates2, 3	Crankshaft position sensor system ECM	C
	Minimum voltage is 5 to 6 V*4	Excess engine friction Battery fully depleted	D

HINT:

*1: The 5 sets of freeze frame data show approximately the same battery voltage.
*2: The 5 sets of freeze frame data show different battery voltages.
*3: If the voltage fluctuates, it can be determined that cranking is being performed normally. When the engine speed is 0 rpm, the crankshaft position sensor system and/or the ECM may be malfunctioning.
*4: There may be excess engine friction. Make sure that the crankshaft rotates smoothly when turning it by hand. Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.

CHECK CRANKING HOLDING FUNCTION CIRCUIT (RAV4_ACA30 RM000001FLC03TX.html)

Go to step 6

CHECK AND REPAIR ENGINE OR BATTERY

CHECK STARTER SIGNAL CIRCUIT (RAV4_ACA30 RM000002XN20CRX.html)

6.CHECK CRANKSHAFT POSITION SENSOR INSTALLATION

Check the tightening and installation condition of the crankshaft position sensor bolt.

Check the connection of the crankshaft position sensor connector.

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS500SX.html)

OK

7.CHECK CRANKSHAFT POSITION SENSOR

Disconnect the crankshaft position sensor connector.

Check for oil on the connector terminals.
OK:
No oil on the terminals.

REPLACE CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS800SX.html)

OK

8.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

Disconnect the crankshaft position sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B81-1 - B32-93 (NE+)
Always
Below 1 Ω
B81-2 - B32-117 (NE-)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B81-1 or B32-93 (NE+) - Body ground
Always
10 kΩ or higher
B81-2 or B32-117 (NE-) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the crankshaft position sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

9.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

10.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604			Suspected Area	Proceed to
Coolant Temp, Ambient Temperature, Intake Air	Coolant Temp, Ambient Temperature	Fuel Pump/Speed Status	Suspected Area	Proceed to
Difference between Coolant Temp, Ambient Temperature and Intake Air is 10°C (18°F) or more*1	Coolant Temp is 125°C (257°F) or higher, or lower than Ambient Temperature by 15°C (27°F) or more	-	Engine coolant temperature sensor	A
	Other than above	All 5 sets of freeze frame data are ON	-	B
	Other than above	At least 1 of the 5 sets of freeze frame data is OFF	Fuel pump control system	C
Difference between Coolant Temp, Ambient Temperature and Intake Air is less than 10°C (18°F)*2	-	At least 1 of the 5 sets of freeze frame data is OFF	Fuel pump control system	C
	-	All 5 sets of freeze frame data are ON	-	B

HINT:

*1: A long time had not elapsed after stopping the engine.
*2: A long time had elapsed after stopping the engine.

Go to step 11

CHECK FUEL PUMP CONTROL CIRCUIT (RAV4_ACA30 RM00000276809PX.html)

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (RAV4_ACA30 RM000002WSG02VX.html)

11.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Disconnect the fuel pump connector.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

Measure the voltage according to the value(s) in the table below.
Standard Voltage:
Tester Connection
Condition
Specified Condition
T1-4 - Body ground
Active Test is being performed
11 to 14 V
Text in Illustration
*a
Front view of wire harness connector
(to Fuel Pump)
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the fuel pump connector.

CHECK FUEL PUMP CONTROL CIRCUIT (RAV4_ACA30 RM00000276809PX.html)

OK

12.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR POWER SOURCE)

Disconnect the fuel injector connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
B16-1 - Body ground	Ignition switch ON	11 to 14 V
B15-1 - Body ground	Ignition switch ON	11 to 14 V
B14-1 - Body ground	Ignition switch ON	11 to 14 V
B13-1 - Body ground	Ignition switch ON	11 to 14 V

Text in Illustration
*a	Front view of wire harness connector (to Fuel Injector)

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the fuel injector connector.

CHECK FUEL INJECTOR POWER SOURCE CIRCUIT (RAV4_ACA30 RM000000ZRM03ZX.html)

OK

13.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result
Result
Proceed to
Fuel leakage or signs of fuel leakage are present
A
No fuel leakage or signs of fuel leakage
B
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
3. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

Go to step 14

REPAIR OR REPLACE FUEL LINE

14.CHECK FUEL SYSTEM

Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter, and inside the fuel tank), and for signs that the fuel pump was stuck.

Result
Result
Proceed to
There is foreign matter or signs that fuel pump was stuck
A
There is no foreign matter and no signs that fuel pump was stuck
B

Go to step 15

REPAIR OR REPLACE FUEL SYSTEM

15.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604		Suspected Area	Proceed to
Coolant Temp	VALVEMATIC Current Angle	Suspected Area	Proceed to
Engine coolant temperature is -10°C (14°F) or less	Current angle is less than 170°CA	Continuously variable valve lift controller assembly	A
Engine coolant temperature is -10°C (14°F) or less	Current angle is more than 170°CA	-	B
Engine coolant temperature is -10°C (14°F) or higher	-	-	B

HINT:

There is a possibility that the engine may not start at extremely low temperatures due to the insufficient intake airflow that results from reduced intake valve duration when the valvematic system is malfunctioning.

Go to step 26

CHECK CONTINUOUSLY VARIABLE VALVE LIFT CONTROLLER ASSEMBLY

16.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604				Suspected Area	Proceed to
Coolant Temp, Ambient Temperature, Intake Air	Coolant Temp, Ambient Temperature	Long FT	Engine Speed	Suspected Area	Proceed to
Difference between Coolant Temp, Ambient Temperature and Intake Air is 10°C (18°F) or more	Coolant Temp is 125°C (257°F) or higher, or lower than Ambient Temperature by 15°C (27°F) or more	-	-	Engine coolant temperature sensor	A
	Other than above	-15% or less, or +15% or more	-	Fuel pump control system Fuel injector assembly	B
		-15 to +15%	Minimum speed is 300 rpm or more*	Engine assembly	C
		-15 to +15%	Minimum speed is less than 300 rpm	Fuel system Intake air system	D
Difference between Coolant Temp, Ambient Temperature and Intake Air is less than 10°C (18°F)	-	-15% or less, or +15% or more	-	Fuel pump control system Fuel injector assembly	B
		-15 to +15%	Minimum speed is 300 rpm or more*	Engine assembly	C
		-15 to +15%	Minimum speed is less than 300 rpm	Fuel system Intake air system	D

HINT:

*: Compression loss may have occurred in the engine assembly.

Go to step 17

CHECK AND REPAIR ENGINE ASSEMBLY

Go to step 19

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (RAV4_ACA30 RM000002WSG02VX.html)

17.INSPECT FUEL INJECTOR ASSEMBLY

Check that no carbon is stuck to the fuel injector assembly.
OK:
No carbon present.

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

OK

18.CHECK FUEL SYSTEM

Check for foreign matter such as iron particles around the fuel pump (fuel pump, fuel pump filter, and inside the fuel tank), and for signs that the fuel pump was stuck.

Result
Result
Proceed to
There is foreign matter or signs that fuel pump was stuck
A
There is no foreign matter and no signs that fuel pump was stuck
B

Go to step 25

REPAIR OR REPLACE FUEL SYSTEM

19.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604	Result	Suspected Area	Proceed to
Coolant Temp	Engine coolant temperature is 40°C (104°F) or less*1	Fuel pressure regulator	A
	Engine coolant temperature is 40 to 90°C (104 to 194°F)*2	Fuel injector assembly	B
	Engine coolant temperature is 90°C (194°F) or higher*3	Fuel pressure regulator	A

HINT:

*1: If the engine coolant temperature is 40°C (104°F) or less (after stopping the engine and the vehicle is not driven for a long period of time), the fuel pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

*2: If the engine coolant temperature is 40 to 90°C (104 to 194°F) (15 to 120 minutes have passed after stopping the engine), there may be fuel leaking from a fuel injector.

*3: If the engine coolant temperature is 90°C (194°F) or higher (2 to 5 minutes have passed after stopping the engine), there may be a problem with the fuel pressure regulator failing to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

Go to step 21

A

20.CHECK FUEL PRESSURE

HINT:

For the fuel pressure inspection, refer to the following procedures (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.
Standard:
147 kPa (1.5 kgf/cm², 21 psi) or higher (5 minutes after stopping the engine)
HINT:
If the engine cannot be started, read the values after cranking the engine.

Result
Result
Proceed to
NG
A
OK
B

Go to step 23

REPLACE FUEL PRESSURE REGULATOR (RAV4_ACA30 RM0000017RJ031X.html)

21.CHECK FUEL INJECTOR ASSEMBLY

Clean the inside of the surge tank with compressed air.

After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.

Result:

Result
Proceed to
400 ppm or more
A
Less than 400 ppm
B
HINT:
If the concentration is 400 ppm or more, a fuel injector may have a sealing problem.

Go to step 23

A

22.CHECK FUEL INJECTOR ASSEMBLY

Inspect the fuel injectors (RAV4_ACA30 RM000001EDQ01NX.html).

Result:

Result
Proceed to
NG
A
OK
B

Go to step 23

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

23.CHECK THROTTLE BODY ASSEMBLY

Check if carbon is in the air flow passage.

Result:

Result
Proceed to
Carbon in passage
A
No carbon present
B

Go to step 24

CLEAN OR REPLACE THROTTLE BODY ASSEMBLY (RAV4_ACA30 RM000002WZZ03WX.html)

24.READ FREEZE FRAME DATA

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Using the tester, confirm the vehicle conditions recorded in the freeze frame data which were present when the DTC was stored (RAV4_ACA30 RM000000PDS0ISX.html).

Result:

Freeze Frame Data Item for DTC P1604		Suspected Area	Proceed to
Coolant Temp	VALVEMATIC Current Angle	Suspected Area	Proceed to
Engine coolant temperature is -10°C (14°F) or less	Current angle is less than 170°CA	Continuously variable valve lift controller assembly	A
Engine coolant temperature is -10°C (14°F) or less	Current angle is more than 170°CA	-	B
Engine coolant temperature is -10°C (14°F) or higher	-	-	B

HINT:

Go to step 25

CHECK CONTINUOUSLY VARIABLE VALVE LIFT CONTROLLER ASSEMBLY

25.PERFORM SIMULATION TEST

Check if the engine can be started.

Result:

Result
Proceed to
Engine can be started
A
Engine cannot be started
B

Go to step 26

END

26.CHECK MALFUNCTION CONDITION

Confirm the problem symptoms.

HINT:

The problem symptoms below can be determined by reading the freeze frame data.

Result:

Problem Symptom	Suspected Area	Proceed to
The engine does not crank	Battery fully depleted Starter (includes pinion gear wear or tooth damage) Starter system Engine assembly (excess friction) Drive plate wear or tooth damage (for CVT) Flywheel wear or tooth damage (for M/T)	A
Abnormal cranking speed	Battery fully depleted Starter Engine assembly (excess friction, compression loss)	B
There is no initial combustion (combustion does not occur even once)*1	Fuel pressure of fuel pressure regulator maintained Fuel injector leak Fuel leak from fuel line Fuel pump control system Fuel pump Spark plug Crankshaft position sensor system Ignition coil system	C
The engine stalls after starter turnoff (engine stalls immediately after the first time the engine speed increases)*2	Intake system connections Throttle body assembly Camshaft timing oil control valve Mass air flow meter system	D
The initial combustion and starter turnoff occur late*3	Engine coolant temperature sensor Mass air flow meter Air fuel ratio sensor Heated oxygen sensor Fuel injector Spark plug Fuel pressure regulator Fuel pump Fuel pump control system	E

HINT:

If there is hesitation (cranking speed is slow and combustion occurs before passing TDC) during the initial cranking period, the battery charge may be insufficient or the starter may be malfunctioning.
*1: If there is no initial combustion, a wire harness may be malfunctioning, or the ignition or fuel system may be malfunctioning.
*2: If the engine stalls after starter turnoff, the air-fuel ratio may be incorrect or the camshaft timing oil control valve may have a problem returning.
*3: If the initial combustion and starter turnoff occur late, the fuel injection volume may be incorrect (too low or too high).

A

27.PERFORM SIMULATION TEST

When cranking the engine, check for a noise indicating that the starter pinion gear is extending, and check that the starter pinion gear is not spinning freely.

Result:

Problem Symptom	Suspected Area	Proceed to
A noise indicating that the starter pinion gear is extending is heard and the starter pinion gear is not spinning freely*	Battery Excess engine friction Starter	A
A noise indicating that the starter pinion gear is extending is heard but the starter pinion gear is spinning freely	Drive plate (for CVT) Flywheel (for M/T) Starter	B
A noise indicating that the starter pinion gear is extending is not heard	Battery Starter Starter system	C

HINT:

*: The battery may be fully depleted or there may be excess engine friction.

Go to step 30

Go to step 31

A

28.INSPECT BATTERY

Check the electrolyte quantity.
Standard:
Electrolyte quantity is within the specified range.

Inspect the specific gravity.
1. Inspect the specific gravity of each cell.
  Standard specific gravity:
  1.25 to 1.29 (electrolyte is at 20°C (68°F))
  HINT:
  1. If the result is not as specified, recharge or replace the battery.
  2. It is not necessary to inspect a maintenance-free battery.

Inspect the battery voltage.
1. Turn the ignition switch off and turn ON the headlights for 20 to 30 seconds. This will remove the surface charge from the battery.
2. Measure the battery voltage.
  Standard voltage:
  12.5 to 12.9 V (electrolyte is at 20°C (68°F))
  HINT:
  If the result is not as specified, recharge or replace the battery.
3. Measure the battery voltage when cranking the engine.
  Standard:
  Approximately 6 V or higher (0°C (32°F) or higher)
  HINT:
  When the battery is depleted, the horn becomes quieter.

CHARGE OR REPLACE BATTERY

OK

29.CHECK ENGINE ASSEMBLY

Check that the crankshaft rotates smoothly when rotating it by hand.
OK:
Crankshaft rotates smoothly.
HINT:
Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.

REPAIR OR REPLACE ENGINE ASSEMBLY

INSPECT STARTER ASSEMBLY (RAV4_ACA30 RM000001ETI01FX.html)

30.CHECK STARTER ASSEMBLY

Remove the starter assembly (RAV4_ACA30 RM000000YQ4010X.html).

Check for starter pinion gear wear and damage.
Standard:
There is no wear or damage.

Result:

Result	Proceed to
NG	A
OK (for CVT)	B
OK (for M/T)	C

Install the starter assembly.

REPAIR DRIVE PLATE AND RING GEAR SUB-ASSEMBLY (RAV4_ACA30 RM0000027IH018X.html)

REPLACE FLYWHEEL SUB-ASSEMBLY (RAV4_ACA30 RM0000027IH018X.html)

REPLACE STARTER ASSEMBLY

31.INSPECT BATTERY

Check the electrolyte quantity.
Standard:
Electrolyte quantity is within the specified range.

Inspect the specific gravity.
1. Inspect the specific gravity of each cell.
  Standard specific gravity:
  1.25 to 1.29 (electrolyte is at 20°C (68°F))
  HINT:
  1. If the result is not as specified, recharge or replace the battery.
  2. It is not necessary to inspect a maintenance-free battery.

Inspect the battery voltage.
1. Turn the ignition switch off and turn ON the headlights for 20 to 30 seconds. This will remove the surface charge from the battery.
2. Measure the battery voltage.
  Standard voltage:
  12.5 to 12.9 V (electrolyte is at 20°C (68°F))
  HINT:
  If the result is not as specified, recharge or replace the battery.
3. Measure the battery voltage when cranking the engine.
  Standard:
  Approximately 6 V or higher (0°C (32°F) or higher)
  HINT:
  When the battery is depleted, the horn becomes quieter.

CHARGE OR REPLACE BATTERY

OK

32.INSPECT STARTER ASSEMBLY

Inspect the starter assembly (RAV4_ACA30 RM000001ETI01FX.html).
Result:
Result
Proceed to
NG
A
OK (w/ Entry and Start System)
B
OK (w/o Entry and Start System)
C

CHECK CRANKING HOLDING FUNCTION CIRCUIT (RAV4_ACA30 RM000001FLC03TX.html)

CHECK STARTER SIGNAL CIRCUIT (RAV4_ACA30 RM000002XN20CRX.html)

REPLACE STARTER ASSEMBLY

33.PERFORM SIMULATION TEST

Check the cranking speed.
Result:
Problem Symptom
Suspected Area
Proceed to
Cranking speed is slow (100 rpm or less)
Battery
Starter assembly
Excess engine friction
A
Cranking speed is fast (300 rpm or more)*
Engine compression loss
B
HINT:
*: If the cranking speed is fast, there may be compression loss.

CHECK AND REPAIR ENGINE ASSEMBLY

A

34.INSPECT BATTERY

Check the electrolyte quantity.
Standard:
Electrolyte quantity is within the specified range.

Inspect the specific gravity.
1. Inspect the specific gravity of each cell.
  Standard specific gravity:
  1.25 to 1.29 (electrolyte is at 20°C (68°F))
  HINT:
  1. If the result is not as specified, recharge or replace the battery.
  2. It is not necessary to inspect a maintenance-free battery.

Inspect the battery voltage.
1. Turn the ignition switch off and turn ON the headlights for 20 to 30 seconds. This will remove the surface charge from the battery.
2. Measure the battery voltage.
  Standard voltage:
  12.5 to 12.9 V (electrolyte is at 20°C (68°F))
  HINT:
  If the result is not as specified, recharge or replace the battery.
3. Measure the battery voltage when cranking the engine.
  Standard:
  Approximately 6 V or higher (0°C (32°F) or higher)
  HINT:
  When the battery is depleted, the horn becomes quieter.

CHARGE OR REPLACE BATTERY

OK

35.CHECK ENGINE ASSEMBLY

Check that the crankshaft rotates smoothly when rotating it by hand.
OK:
Crankshaft rotates smoothly.
HINT:
Excess engine friction may have occurred temporarily. Remove the cylinder head cover and oil pan, and check for foreign matter such as iron fragments. If there is a malfunction or signs of a malfunction present, perform a detailed inspection by disassembling all the parts.

REPAIR OR REPLACE ENGINE ASSEMBLY

INSPECT STARTER ASSEMBLY (RAV4_ACA30 RM000001ETI01FX.html)

36.CHECK FUEL INJECTOR ASSEMBLY

Using a sound scope or screwdriver, check for a fuel injector assembly operating noise while cranking the engine.
OK:
Fuel injector assembly operating noise is heard.

Go to step 49

OK

37.CHECK FUEL PRESSURE

Inspect the fuel pressure (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Go to step 47

OK

38.CHECK SPARK PLUG AND SPARK

Check for sparks (RAV4_ACA30 RM000001EFG02EX.html).

Go to step 42

OK

39.CONFIRM VEHICLE CONDITION

Confirm the conditions present when the malfunction occurred based on the customer problem analysis.

Result:

Problem Symptom	Suspected Area	Proceed to
When the engine is stopped and a long time has passed, engine starting trouble occurs*1	Fuel pressure regulator is stuck open	A
When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2	Fuel injector leak	B
When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3	Failure to maintain fuel pressure by fuel pressure regulator	A
Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs	-	C*4

HINT:

*1: The fuel pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

*2: Fuel may be leaking from a fuel injector assembly.

*3: The fuel pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

*4: From step 74, perform fuel system troubleshooting C (steps 75 to 79).

Go to step 41

Go to step 74

A

40.CHECK FUEL PRESSURE

HINT:

For the fuel pressure inspection, refer to the following procedures (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Result:

Result
Proceed to
Below 147 kPa (1.5 kgf/cm²) (5 minutes after stopping the engine)
A
147 kPa (1.5 kgf/cm²) or higher (5 minutes after stopping the engine)
B*
HINT:
1. If the engine cannot be started, check the fuel pressure after cranking the engine.
2. *: From step 74, perform fuel system troubleshooting C (steps 75 to 79).

Go to step 74

REPLACE FUEL PRESSURE REGULATOR (RAV4_ACA30 RM0000017RJ031X.html)

41.CHECK FUEL INJECTOR ASSEMBLY

After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.

Result:

Result
Proceed to
400 ppm or more
A
Less than 400 ppm
B*
HINT:
1. If the concentration is 400 ppm or more, a fuel injector may have a sealing problem.
2. *: From step 74, perform fuel system troubleshooting C (steps 75 to 79).

Go to step 74

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

42.CHECK SPARK PLUG

Inspect the spark plugs (RAV4_ACA30 RM000001EFG02EX_01_0002.html).

HINT:

Even if the spark plug of only one cylinder is malfunctioning, replace the spark plugs of all cylinders.

REPLACE SPARK PLUG (RAV4_ACA30 RM000002YO400WX.html)

OK

43.READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.

Start the engine.

While running the engine, read the Engine Speed value.
Standard:
A value that matches the actual engine speed is constantly output.
HINT:
1. Check the engine speed using a line graph.
2. If the engine cannot be started, check the engine speed while cranking the engine.
3. If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.

CHECK CRANKSHAFT POSITION SENSOR CIRCUIT (RAV4_ACA30 RM000000TCW0QFX.html)

OK

44.CHECK HARNESS AND CONNECTOR (IGNITION COIL POWER SOURCE)

Disconnect the ignition coil connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
B12-1 (+B) - B12-4 (GND)	Ignition switch ON	11 to 14 V
B11-1 (+B) - B11-4 (GND)	Ignition switch ON	11 to 14 V
B10-1 (+B) - B10-4 (GND)	Ignition switch ON	11 to 14 V
B9-1 (+B) - B9-4 (GND)	Ignition switch ON	11 to 14 V

Text in Illustration
*a	Front view of wire harness connector (to Ignition Coil)

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ignition coil connector.

CHECK IGNITION COIL POWER SOURCE CIRCUIT (RAV4_ACA30 RM000000XH40P2X.html)

OK

45.CHECK HARNESS AND CONNECTOR (IGNITION COIL - ECM)

Disconnect the ignition coil connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B12-2 (IGF) - B32-82 (IGF1)	Always	Below 1 Ω
B11-2 (IGF) - B32-82 (IGF1)	Always	Below 1 Ω
B10-2 (IGF) - B32-82 (IGF1)	Always	Below 1 Ω
B9-2 (IGF) - B32-82 (IGF1)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B12-2 (IGF) or B32-82 (IGF1) - Body ground	Always	10 kΩ or higher
B11-2 (IGF) or B32-82 (IGF1) - Body ground	Always	10 kΩ or higher
B10-2 (IGF) or B32-82 (IGF1) - Body ground	Always	10 kΩ or higher
B9-2 (IGF) or B32-82 (IGF1) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the ignition coil connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

46.CHECK HARNESS AND CONNECTOR (IGNITION COIL - ECM)

Disconnect the ignition coil connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B12-3 (IGT1) - B32-109 (IGT1)	Always	Below 1 Ω
B11-3 (IGT2) - B32-108 (IGT2)	Always	Below 1 Ω
B10-3 (IGT3) - B32-107 (IGT3)	Always	Below 1 Ω
B9-3 (IGT4) - B32-106 (IGT4)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B12-3 (IGT1) or B32-109 (IGT1) - Body ground	Always	10 kΩ or higher
B11-3 (IGT2) or B32-108 (IGT2) - Body ground	Always	10 kΩ or higher
B10-3 (IGT3) or B32-107 (IGT3) - Body ground	Always	10 kΩ or higher
B9-3 (IGT4) or B32-106 (IGT4) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.
If the wire harness is normal, after replacing the ignition coil, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 74 and perform troubleshooting for the ignition system (steps 80 to 86).

Reconnect the ECM connector.

Reconnect the ignition coil connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE IGNITION COIL (RAV4_ACA30 RM000002YO400WX.html)

47.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for an operating sound from the fuel pump.
Standard:
Tester Operation
Specified Condition
ON
Operating sound heard
OFF
Operating sound not heard
HINT:
Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.

CHECK FUEL PUMP CONTROL CIRCUIT (RAV4_ACA30 RM00000276809PX.html)

OK

48.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result
Result
Proceed to
Fuel leakage or signs of fuel leakage are present
A
No fuel leakage or signs of fuel leakage
B
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.
3. If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 74 and perform fuel system troubleshooting (steps 75 to 79).

CHECK FUEL PUMP CONTROL CIRCUIT (RAV4_ACA30 RM00000276809PX.html)

REPAIR OR REPLACE FUEL LINE

49.READ VALUE USING INTELLIGENT TESTER (ENGINE SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Engine Speed.

Start the engine.

While running the engine, read the Engine Speed value.
Standard:
A value that matches the actual engine speed is constantly output.
HINT:
1. Check the engine speed using a line graph.
2. If the engine cannot be started, check the engine speed while cranking the engine.
3. If the engine speed is 0 rpm, the crankshaft position sensor may have an open or short circuit.

REPLACE CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS800SX.html)

OK

50.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY POWER SOURCE)

Disconnect the fuel injector assembly connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
B16-1 - Body ground	Ignition switch ON	11 to 14 V
B15-1 - Body ground	Ignition switch ON	11 to 14 V
B14-1 - Body ground	Ignition switch ON	11 to 14 V
B13-1 - Body ground	Ignition switch ON	11 to 14 V

Text in Illustration
*a	Front view of wire harness connector (to Fuel Injector)

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the fuel injector assembly connector.

CHECK FUEL INJECTOR POWER SOURCE CIRCUIT (RAV4_ACA30 RM000000ZRM03ZX.html)

OK

51.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM)

Disconnect the fuel injector assembly connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B16-2 - B32-86 (#10)	Always	Below 1 Ω
B15-2 - B32-85 (#20)	Always	Below 1 Ω
B14-2 - B32-84 (#30)	Always	Below 1 Ω
B13-2 - B32-83 (#40)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B16-2 or B32-86 (#10) - Body ground	Always	10 kΩ or higher
B15-2 or B32-85 (#20) - Body ground	Always	10 kΩ or higher
B14-2 or B32-84 (#30) - Body ground	Always	10 kΩ or higher
B13-2 or B32-83 (#40) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the fuel injector assembly connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

52.INSPECT MASS AIR FLOW METER

Inspect the mass air flow meter (RAV4_ACA30 RM000000Q2D046X.html).

Go to step 58

OK

53.CHECK INTAKE SYSTEM

Check for air suction in the intake system [vacuum hose disconnection, cracks, damaged gaskets, etc.] (RAV4_ACA30 RM00000341000BX.html).
HINT:
1. If the accelerator pedal is released after racing the engine, the inspection is easier to perform because the vacuum inside the intake manifold increases and the air suction noise becomes louder.
2. If Short FT and Long FT are largely different from the normal values when idling (intake air volume is small) and almost the same as the normal values when racing the engine (intake air volume is high), air leakage may be present.
Standard:
There is no air suction.

REPAIR OR REPLACE INTAKE SYSTEM

OK

54.CHECK THROTTLE BODY ASSEMBLY

Disconnect the throttle body assembly connector.
HINT:
When the connector is disconnected, the vehicle enters fail-safe mode and the throttle valve opening angle is 4 to 5.5°.

Crank the engine and check that it starts.
Result:
Result
Proceed to
Engine starts
A
Engine does not start
B

Connect the throttle body assembly connector.
HINT:
When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs (RAV4_ACA30 RM000000PDK0WCX.html).

Go to step 56

A

55.CHECK THROTTLE BODY ASSEMBLY

Check if carbon is in the air flow passage.
Standard:
No carbon present.

REMOVE FOREIGN OBJECT AND CLEAN THROTTLE BODY ASSEMBLY

OK

56.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE VVT SYSTEM)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Warm up the engine.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT System (Bank 1).
HINT:
When performing the Active Test, make sure the A/C is on and the shift lever is in neutral.

Check the engine speed while operating the Oil Control Valve (OCV) using the tester.
OK:
Tester Operation
Specified Condition
OFF
Normal engine speed
ON
Soon after OCV switched from OFF to ON, engine idles roughly or stalls
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.
3. If the camshaft timing oil control valve is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall.

REPLACE CAMSHAFT TIMING OIL CONTROL VALVE (RAV4_ACA30 RM000002WRE00SX.html)

OK

57.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE VVT EXHAUST LINEAR)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Start the engine and warm it up.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the VVT Exhaust Linear (Bank 1).

Check the engine speed while operating the oil control valve using the tester.
OK*:
Tester Operation
Specified Condition
0%
Normal engine speed
100%
Engine idles roughly or stalls
Result:
Result
Proceed to
NG
A
OK
B
HINT:
1. *: From step 74, perform intake system troubleshooting (steps 87 to 89). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 90 to 97).
2. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
3. When the results of the inspection using the Active Test are normal but the valve operating noise is abnormal, check the valve for any signs of problems.
4. If the camshaft timing oil control valve is stuck on, the valve overlap increases and combustion worsens due to the internal EGR which may cause rough idle or cause the engine to stall.

Go to step 74

REPLACE CAMSHAFT TIMING OIL CONTROL VALVE (RAV4_ACA30 RM000002WRE00SX.html)

58.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM)

Disconnect the mass air flow meter connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B1-5 (VG) - B32-69 (VG)
Always
Below 1 Ω
B1-4 (E2G) - B32-92 (E2G)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B1-5 (VG) or B32-69 (VG) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.
3. If the wire harness is normal, after replacing the mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs again, proceed to step 74 and perform intake system troubleshooting (steps 87 to 89). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 90 to 97).

Reconnect the ECM connector.

Reconnect the mass air flow meter connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE MASS AIR FLOW METER (RAV4_ACA30 RM000002WQT00SX.html)

59.INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Inspect the engine coolant temperature sensor (RAV4_ACA30 RM000000VA900XX.html).
HINT:
If the engine coolant temperature sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (RAV4_ACA30 RM000002WSG02VX.html)

OK

60.CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM)

Disconnect the engine coolant temperature sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B4-2 - B32-64 (THW)
Always
Below 1 Ω
B4-1 - B32-65 (ETHW)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B4-2 or B32-64 (THW) - Body ground
Always
10 kΩ or higher
B4-1 or B32-65 (ETHW) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.
3. If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Reconnect the ECM connector.

Reconnect the engine coolant temperature sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

61.INSPECT MASS AIR FLOW METER

Inspect the mass air flow meter (RAV4_ACA30 RM000000Q2D046X.html).
HINT:
If the mass air flow meter is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

REPLACE MASS AIR FLOW METER (RAV4_ACA30 RM000002WQT00SX.html)

OK

62.CHECK HARNESS AND CONNECTOR (MASS AIR FLOW METER - ECM)

Disconnect the mass air flow meter connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B1-5 (VG) - B32-69 (VG)
Always
Below 1 Ω
B1-4 (E2G) - B32-92 (E2G)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B1-5 (VG) or B32-69 (VG) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.
3. If the wire harness or connector is malfunctioning, after replacing or repairing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Reconnect the ECM connector.

Reconnect the mass air flow meter connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

63.READ VALUE USING INTELLIGENT TESTER

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Atmosphere Pressure and Long FT #1.

Read the value.

Result:

Data List Item	Result	Suspected Area	Proceed to
Long FT #1	+25% or more or less than -25%	Air fuel ratio sensor Heated oxygen sensor Mass air flow meter Fuel injector assembly ECM	A
Atmosphere Pressure	80 kPa (600 mmHg) or less (when altitude is 0 m)		A
Both Data List items listed above	Values are other than above	-	B

Go to step 68

A

64.PERFORM SIMULATION TEST

Remove the EFI No. 1 and ETCS fuses from the engine room relay block.

After 60 seconds or more elapse, install the EFI No. 1 and ETCS fuses.

Check if the engine can be started.

Result
Result
Proceed to
Engine can be started
A
Engine cannot be started
B

Go to step 68

A

65.INSPECT AIR FUEL RATIO SENSOR

Connect the intelligent tester to the DLC3.

Start the engine.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Fuel System Status #1.

Confirm that Fuel System Status #1 is CL.

Enter the following menus: Powertrain / Engine and ECT / Data List / AF Lambda B1 S1.

Confirm that AF Lambda B1 S1 is within the range of 0.95 to 1.05 when idling.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Injection Volume for A/F Sensor.

Read the output voltage from the air fuel ratio sensor when increasing and decreasing the fuel injection volume.
Standard:
Tester Display
Injection Volume
Specified Condition
AFS Voltage B1 S1
+25%
Air fuel ratio sensor output voltage is below 3.1 V
-12.5%
Air fuel ratio sensor output voltage is higher than 3.4 V
HINT:
1. The air fuel ratio sensor has an output delay of a few seconds and the heated oxygen sensor has a maximum output delay of approximately 20 seconds.
2. If the air fuel ratio sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

REPLACE AIR FUEL RATIO SENSOR (RAV4_ACA30 RM000002WUR027X.html)

OK

66.INSPECT HEATED OXYGEN SENSOR

Inspect the heated oxygen sensor (RAV4_ACA30 RM000001Z1X00WX.html).
HINT:
If the heated oxygen sensor is malfunctioning, after replacing it, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

REPLACE HEATED OXYGEN SENSOR (RAV4_ACA30 RM000001ROP00TX.html)

OK

67.PERFORM SIMULATION TEST

Check if the idling speed is stable after starting the engine.
OK:
Idling speed is stable.
HINT:
After replacing the fuel injector assembly or mass air flow meter, check if engine starting trouble occurs again. If engine starting trouble occurs, replace the ECM. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

REPLACE MASS AIR FLOW METER (RAV4_ACA30 RM000002WQT00SX.html)

68.CHECK FUEL PRESSURE

Inspect the fuel pressure (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Go to step 73

OK

69.CHECK SPARK PLUG

Inspect the spark plugs (RAV4_ACA30 RM000001EFG02EX_01_0002.html).

Result
Result
Proceed to
All cylinders are normal
A
One cylinder is abnormal*1
B
All cylinders are abnormal*2, *3
C

HINT:

*1: If one cylinder is abnormal, replace the spark plug of that cylinder and inspect the ignition and fuel system for that cylinder. After performing repairs, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.
*2: If all cylinders are abnormal, replace the spark plugs of all cylinders and check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.
*3: Engine starting trouble may occur if the vehicle is driven extremely short distances repeatedly.

REPLACE SPARK PLUG (ABNORMAL CYLINDER) (RAV4_ACA30 RM000002YO400WX.html)

REPLACE SPARK PLUG (ALL CYLINDER) (RAV4_ACA30 RM000002YO400WX.html)

A

70.CONFIRM VEHICLE CONDITION

Confirm the conditions present when the malfunction occurred based on the customer problem analysis.

Result:

Problem Symptom	Suspected Area	Proceed to
When the engine is stopped and a long time has passed, engine starting trouble occurs*1	Fuel pressure regulator is stuck open	A
When the engine is stopped and approximately 15 to 120 minutes have passed, engine starting trouble occurs*2	Fuel injector leak	B
When the engine is stopped and approximately 2 to 3 minutes have passed, engine starting trouble occurs*3	Failure to maintain fuel pressure by fuel pressure regulator	A
Condition other than above, or there is an inconsistency in the conditions present when engine starting trouble occurs	-	C*4

HINT:

*1: The fuel pressure regulator may be stuck open. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

*2: Fuel may be leaking from a fuel injector assembly.

*3: The fuel pressure regulator may not be able to maintain the fuel pressure. Attach a fuel pressure gauge and check the ability to maintain fuel pressure after stopping the engine.

*4: From step 74, perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Go to step 72

Go to step 74

A

71.CHECK FUEL PRESSURE

HINT:

For the fuel pressure inspection, refer to the following procedures (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Result:

Result
Proceed to
Below 147 kPa (1.5 kgf/cm²) (5 minutes after stopping the engine)
A
147 kPa (1.5 kgf/cm²) or higher (5 minutes after stopping the engine)
B*
HINT:
1. If the engine cannot be started, check the fuel pressure after cranking the engine.
2. *: From step 74, perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Go to step 74

REPLACE FUEL PRESSURE REGULATOR (RAV4_ACA30 RM0000017RJ031X.html)

72.CHECK FUEL INJECTOR ASSEMBLY

Clean the inside of the surge tank with compressed air.

After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.

Result:

Result
Proceed to
400 ppm or more
A
Less than 400 ppm
B*
HINT:
1. If the concentration is 400 ppm or more, a fuel injector may have a sealing problem.
2. *: From step 74, perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Go to step 74

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

73.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result
Result
Proceed to
Fuel leakage or signs of fuel leakage are present
A
No fuel leakage or signs of fuel leakage
B
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.
3. If there are no fuel leaks, after inspecting the fuel pump control system, check if engine starting trouble occurs again. If engine starting trouble still occurs, proceed to step 74 and perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

CHECK FUEL PUMP CONTROL CIRCUIT (RAV4_ACA30 RM00000276809PX.html)

REPAIR OR REPLACE FUEL LINE

74.CHECK MALFUNCTION CONDITION

If the malfunction could not be identified during the inspection in steps 39, 40, 41 and 48, perform fuel system troubleshooting C (steps 75 to 79).

Result:

Performed Step
Troubleshooting by System
Procedure
Proceed to
Steps 39, 40, 41 and 48
Fuel system troubleshooting C
75 to 79
A

If the malfunction could not be identified during the inspection in step 46, perform ignition system troubleshooting (steps 80 to 86).

Result:

Performed Step
Troubleshooting by System
Procedure
Proceed to
Step 46
Ignition system troubleshooting
80 to 86
B

If the malfunction could not be identified during the inspection in steps 56, 57 and 58, perform intake air system troubleshooting (steps 87 to 89). If engine starting trouble still occurs, perform fuel system troubleshooting A (steps 90 to 97).

Result:

Performed Step
Troubleshooting by System
Procedure
Proceed to
Step 56, 57, 58
Intake air system troubleshooting
87 to 89
C
Fuel system troubleshooting A
90 to 97

If the malfunction could not be identified during the inspection in steps 59, 60, 61, 62, 65, 66, 67, 69, 70, 71, 72, 73, perform fuel system troubleshooting A (steps 98 to 105), fuel system troubleshooting B (steps 106 to 108), intake air system troubleshooting (steps 109 to 111), and ignition system troubleshooting (steps 112 to 118), in that order.

Result:

Performed Step	Troubleshooting by System	Procedure	Proceed to
Steps 59, 60, 61, 62, 65, 66, 67, 69, 70, 71, 72, 73	Fuel system troubleshooting A	98 to 105	D
	Fuel system troubleshooting B	106 to 108
	Intake air system troubleshooting	109 to 111
	Ignition system troubleshooting	112 to 118

Go to step 80

Go to step 87

Go to step 98

A

75.INSPECT FUEL INJECTOR ASSEMBLY

Inspect the fuel injector assemblies (RAV4_ACA30 RM000001EDQ01NX.html).

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

OK

76.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY POWER SOURCE)

Disconnect the fuel injector assembly connector.

Turn the ignition switch to ON.

Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection	Switch Condition	Specified Condition
B16-1 - Body ground	Ignition switch ON	11 to 14 V
B15-1 - Body ground	Ignition switch ON	11 to 14 V
B14-1 - Body ground	Ignition switch ON	11 to 14 V
B13-1 -Body ground	Ignition switch ON	11 to 14 V

Text in Illustration
*a	Front view of wire harness connector (to Fuel Injector)

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the fuel injector assembly connector.

CHECK FUEL INJECTOR POWER SOURCE CIRCUIT (RAV4_ACA30 RM000000ZRM03ZX.html)

OK

77.CHECK HARNESS AND CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM)

Disconnect the fuel injector assembly connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B16-2 - B32-86 (#10)	Always	Below 1 Ω
B15-2 - B32-85 (#20)	Always	Below 1 Ω
B14-2 - B32-84 (#30)	Always	Below 1 Ω
B13-2 - B32-83 (#40)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B16-2 or B32-86 (#10) - Body ground	Always	10 kΩ or higher
B15-2 or B32-85 (#20) - Body ground	Always	10 kΩ or higher
B14-2 or B32-84 (#30) - Body ground	Always	10 kΩ or higher
B13-2 or B32-83 (#40) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the fuel injector assembly connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

78.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

Go to step 79

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

79.CHECK CAMSHAFT POSITION SENSOR

Replace the camshaft position sensor (RAV4_ACA30 RM000002WR500UX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CAMSHAFT POSITION SENSOR IS DEFECTIVE)

80.CHECK CRANKSHAFT POSITION SENSOR

Check the tightening and installation condition of the crankshaft position sensor bolt.

Check the connection of the crankshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS500SX.html)

OK

81.CHECK CAMSHAFT POSITION SENSOR

Check the tightening and installation condition of the camshaft position sensor bolt.

Check the connection of the camshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CAMSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WR300UX.html)

OK

82.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

Disconnect the crankshaft position sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B81-1 - B32-93 (NE+)
Always
Below 1 Ω
B81-2 - B32-117 (NE-)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B81-1 or B32-93 (NE+) - Body ground
Always
10 kΩ or higher
B81-2 or B32-117 (NE-) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the crankshaft position sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

83.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR FOR INTAKE SIDE - ECM)

Disconnect the camshaft position sensor for intake side connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B123-1 (VV1+) - B32-94 (G2+)	Always	Below 1 Ω
B123-2 (VV1-) - B32-118 (G2-)	Always	Below 1 Ω
B123-3 (VC) - B32-119 (VCV1)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B123-1 (VV1+) or B32-94 (G2+) - Body ground	Always	10 kΩ or higher
B123-2 (VV1-) or B32-118 (G2-) - Body ground	Always	10 kΩ or higher
B123-3 (VC) or B32-119 (VCV1) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the camshaft position sensor for intake side connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

84.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR FOR EXHAUST SIDE - ECM)

Disconnect the camshaft position sensor for exhaust side connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B124-1 (VVE+) - B32-98 (EV1+)	Always	Below 1 Ω
B124-2 (VVE-) - B32-120 (EV1-)	Always	Below 1 Ω
B124-3 (VC2) - B32-121 (VCE1)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B124-1 (VVE+) or B32-98 (EV1+) - Body ground	Always	10 kΩ or higher
B124-2 (VVE-) or B32-120 (EV1-) - Body ground	Always	10 kΩ or higher
B124-3 (VC2) or B32-121 (VCE1) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the camshaft position sensor for exhaust side connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

85.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

Go to step 86

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

86.CHECK CAMSHAFT POSITION SENSOR

Replace the camshaft position sensor (RAV4_ACA30 RM000002WR500UX.html).

Check the engine start operation.

OK:: Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CAMSHAFT POSITION SENSOR IS DEFECTIVE)

87.READ VALUE USING INTELLIGENT TESTER (ISC LEARNING VALUE)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / ISC Learning Value.

Start the engine and warm it up until the engine coolant temperature stabilizes with the A/C switch and all the accessory switches off.
Result:
Data List Item
Result
Suspected Area
Proceed to
ISC Learning Value
(Engine displacement (liters) x 0.9) or more
Valve timing
Compression
A
Less than (engine displacement (liters) x 0.9)
-
B

Go to step 89

A

88.CHECK CYLINDER COMPRESSION PRESSURE

Inspect the compression (RAV4_ACA30 RM000002ZLZ00OX_01_0010.html).

REPAIR OR REPLACE ENGINE ASSEMBLY

CHECK VALVE TIMING

89.INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Inspect the engine coolant temperature sensor (RAV4_ACA30 RM000000VA900XX.html).

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (RAV4_ACA30 RM000002WSG02VX.html)

OK

90.CHECK FUEL PRESSURE

HINT:

For the fuel pressure inspection, refer to the following procedures (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Attach a fuel pressure gauge and check the fuel pressure when cranking the engine and after stopping the engine.

Result:

Vehicle State
Specified Condition
Cranking engine
304 to 343 kPa (3.1 to 3.5 kgf/cm²)
5 minutes after stopping engine
147 kPa (1.5 kgf/cm²) or higher

Go to step 96

OK

91.READ VALUE USING INTELLIGENT TESTER (LONG FT #1)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Long FT #1.
Result:
Data List Item
Result
Suspected Area
Proceed to
Long FT #1
-15 to +15%
Wire harness or connector
Fuel
A
+15% or more, or less than -15%
Fuel injector
B

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

A

92.PERFORM SIMULATION TEST

Check if the idling speed after starting the engine is currently stable and has always been stable in the past.

Result:

Problem Symptom
Suspected Area
Proceed to
Current unstable idling speed or history of unstable idling speed
Crankshaft position sensor system
A
All current and past idling speeds are stable
Fuel
B
HINT:
Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.

REPLACE FUEL

A

93.CHECK CRANKSHAFT POSITION SENSOR

Check the tightening and installation condition of the crankshaft position sensor bolt.

Check the connection of the crankshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS500SX.html)

OK

94.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

Disconnect the crankshaft position sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B81-1 - B32-93 (NE+)
Always
Below 1 Ω
B81-2 - B32-117 (NE-)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B81-1 or B32-93 (NE+) - Body ground
Always
10 kΩ or higher
B81-2 or B32-117 (NE-) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the crankshaft position sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

95.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

96.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result
Result
Proceed to
Fuel leakage or signs of fuel leakage are present
A
No fuel leakage or signs of fuel leakage
B
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
3. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

Go to step 97

REPAIR OR REPLACE FUEL LINE

97.INSPECT FUEL PUMP

Inspect fuel pump (RAV4_ACA30 RM0000017RH022X.html).

HINT:

Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.
Make sure the internal connector is securely connected.
Make sure the fuel pump filter is not clogged.

REPLACE FUEL PUMP (RAV4_ACA30 RM0000017RJ032X.html)

REPLACE FUEL PRESSURE REGULATOR (RAV4_ACA30 RM0000017RJ031X.html)

98.CHECK FUEL PRESSURE

HINT:

For the fuel pressure inspection, refer to the following procedures (RAV4_ACA30 RM000001IQZ02QX_01_0002.html).

Attach a fuel pressure gauge and check the fuel pressure after stopping the engine.

Result:

Result
Proceed to
147 kPa (1.5 kgf/cm²) or higher (5 minutes after stopping the engine)
A
Below 147 kPa (1.5 kgf/cm²) (5 minutes after stopping the engine)
B

Go to step 104

A

99.READ VALUE USING INTELLIGENT TESTER (LONG FT #1)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / Long FT #1.
Result:
Data List Item
Result
Suspected Area
Proceed to
Long FT #1
-15 to +15%
Wire harness or connector
Fuel
A
+15% or more, or less than -15%
Fuel injector assembly
B

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

A

100.PERFORM SIMULATION TEST

Check if the idling speed after starting the engine is currently stable and has always been stable in the past.

Result
Problem Symptom
Suspected Area
Proceed to
Current unstable idling speed or history of unstable idling speed
Crankshaft position sensor system
A
All current and past idling speeds are stable
Fuel
B
HINT:
Through the customer problem analysis, confirm the fuel being used and the location at which the fuel was added to check if the malfunction is caused by the fuel in the vehicle.

REPLACE FUEL

A

101.CHECK CRANKSHAFT POSITION SENSOR

Check the tightening and installation condition of the crankshaft position sensor bolt.

Check the connection of the crankshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS500SX.html)

OK

102.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

Disconnect the crankshaft position sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B81-1 - B32-93 (NE+)
Always
Below 1 Ω
B81-2 - B32-117 (NE-)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B81-1 or B32-93 (NE+) - Body ground
Always
10 kΩ or higher
B81-2 or B32-117 (NE-) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the crankshaft position sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

103.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

104.PERFORM ACTIVE TEST USING INTELLIGENT TESTER (CONTROL THE FUEL PUMP / SPEED)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test / Control the Fuel Pump / Speed.

When performing the Active Test, check for fuel leakage from the fuel pipes.

Result
Result
Proceed to
Fuel leakage or signs of fuel leakage are present
A
No fuel leakage or signs of fuel leakage
B
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. When performing the Active Test, if there is no operating noise from the fuel pump, the fuel pump system may be malfunctioning.
3. Check if the vehicle ran out of fuel, as engine starting trouble due to running out of fuel is also detected.

Go to step 105

REPAIR OR REPLACE FUEL LINE

105.INSPECT FUEL PUMP

Inspect fuel pump (RAV4_ACA30 RM0000017RH022X.html).

HINT:

Make sure there is no foreign matter such as iron particles on the fuel pump and no signs that the fuel pump was stuck.
Make sure the internal connector is securely connected.
Make sure the fuel pump filter is not clogged.

REPLACE FUEL PUMP (RAV4_ACA30 RM0000017RJ032X.html)

OK

106.CHECK PURGE VSV

Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

Disconnect the vacuum hose (on the canister side) of the purge VSV.

Start the engine.

Idle the engine.

Disconnect the purge VSV connector.

Check if air flows through the purge VSV.
Standard:
Air does not flow

Reconnect the purge VSV connector.

Reconnect the vacuum hose.
HINT:
When this inspection is performed, the MIL may illuminate. After finishing the inspection, check and clear DTCs (RAV4_ACA30 RM000000PDK0WCX.html).

INSPECT PURGE VSV (RAV4_ACA30 RM000000R3500VX.html)

OK

107.CHECK FUEL INJECTOR ASSEMBLY

Clean the inside of the surge tank with compressed air.

After stopping the engine, measure the HC concentration inside the surge tank for 15 minutes.

Result:

Result
Proceed to
400 ppm or more
A
Less than 400 ppm
B
HINT:
If the concentration is 400 ppm or more, a fuel injector may have a sealing problem.

Go to step 108

REPLACE FUEL INJECTOR ASSEMBLY (RAV4_ACA30 RM000001EDS01DX.html)

108.CHECK INTAKE VALVE

Check if carbon is on the intake valves.

Result:

Result
Proceed to
Carbon present
A
No carbon present
B

Go to step 109

CLEAN INTAKE VALVE

109.READ VALUE USING INTELLIGENT TESTER (ISC LEARNING VALUE)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Data List / ISC Learning Value.

Start the engine, turn off all accessory switches and warm up the engine until the engine coolant temperature stabilizes.
Result:
Data List Item
Result
Suspected Area
Proceed to
ISC Learning Value
(engine displacement (liters) x 0.9) or more
Valve timing
Compression
A
Less than (engine displacement (liters) x 0.9)
-
B

Go to step 111

A

110.CHECK CYLINDER COMPRESSION PRESSURE

Inspect the compression (RAV4_ACA30 RM000002ZLZ00OX_01_0010.html).

REPAIR OR REPLACE ENGINE ASSEMBLY

ADJUST VALVE TIMING (RAV4_ACA30 RM0000027I905UX_03_0377.html)

111.INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Inspect the engine coolant temperature sensor (RAV4_ACA30 RM000000VA900XX.html).

REPLACE ENGINE COOLANT TEMPERATURE SENSOR (RAV4_ACA30 RM000002WSG02VX.html)

OK

112.CHECK CRANKSHAFT POSITION SENSOR

Check the tightening and installation condition of the crankshaft position sensor bolt.

Check the connection of the crankshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CRANKSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WS500SX.html)

OK

113.CHECK CAMSHAFT POSITION SENSOR

Check the tightening and installation condition of the camshaft position sensor bolt.

Check the connection of the camshaft position sensor connector.
OK:
Sensor is installed correctly.

SECURELY REINSTALL CAMSHAFT POSITION SENSOR (RAV4_ACA30 RM000002WR300UX.html)

OK

114.CHECK HARNESS AND CONNECTOR (CRANKSHAFT POSITION SENSOR - ECM)

Disconnect the crankshaft position sensor connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection
Condition
Specified Condition
B81-1 - B32-93 (NE+)
Always
Below 1 Ω
B81-2 - B32-117 (NE-)
Always
Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection
Condition
Specified Condition
B81-1 or B32-93 (NE+) - Body ground
Always
10 kΩ or higher
B81-2 or B32-117 (NE-) - Body ground
Always
10 kΩ or higher
HINT:
1. Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
2. Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the crankshaft position sensor connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

115.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR FOR INTAKE SIDE - ECM)

Disconnect the camshaft position sensor for intake side connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B123-1 (VV1+) - B32-94 (G2+)	Always	Below 1 Ω
B123-2 (VV1-) - B32-118 (G2-)	Always	Below 1 Ω
B123-3 (VC) - B32-119 (VCV1)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B123-1 (VV1+) or B32-94 (G2+) - Body ground	Always	10 kΩ or higher
B123-2 (VV1-) or B32-118 (G2-) - Body ground	Always	10 kΩ or higher
B123-3 (VC) or B32-119 (VCV1) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the camshaft position sensor for intake side connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

116.CHECK HARNESS AND CONNECTOR (CAMSHAFT POSITION SENSOR FOR EXHAUST SIDE - ECM)

Disconnect the camshaft position sensor for exhaust side connector.

Disconnect the ECM connector.

Measure the resistance according to the value(s) in the table below.

Standard Resistance (Check for Open):

Tester Connection	Condition	Specified Condition
B124-1 (VVE+) - B32-98 (EV1+)	Always	Below 1 Ω
B124-2 (VVE-) - B32-120 (EV1-)	Always	Below 1 Ω
B124-3 (VC2) - B32-121 (VCE1)	Always	Below 1 Ω

Standard Resistance (Check for Short):

Tester Connection	Condition	Specified Condition
B124-1 (VVE+) or B32-98 (EV1+) - Body ground	Always	10 kΩ or higher
B124-2 (VVE-) or B32-120 (EV1-) - Body ground	Always	10 kΩ or higher
B124-3 (VC2) or B32-121 (VCE1) - Body ground	Always	10 kΩ or higher

HINT:

Jiggle the wire harness and connector to increase the likelihood of detecting malfunctions that do not always occur.
Make sure there is not an excessive amount of force applied to the wire harness.

Reconnect the ECM connector.

Reconnect the camshaft position sensor for exhaust side connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

117.CHECK CRANKSHAFT POSITION SENSOR

Replace the crankshaft position sensor (RAV4_ACA30 RM000002WS800SX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

Go to step 118

END (CRANKSHAFT POSITION SENSOR IS DEFECTIVE)

118.CHECK CAMSHAFT POSITION SENSOR

Replace the camshaft position sensor (RAV4_ACA30 RM000002WR500UX.html).

Check the engine start operation.
OK:
Malfunction has been repaired successfully.

REPLACE ECM (RAV4_ACA30 RM0000017UO01KX.html)

END (CAMSHAFT POSITION SENSOR IS DEFECTIVE)

Result	Proceed to
Only DTC P1604 is output	A
DTCs other than P1604 are output	B

Result	Proceed to
OK	A
NG (w/ Entry and Start System)	B
NG (w/o Entry and Start System)	C

Result	Proceed to
Fuel leakage or signs of fuel leakage are present	A
No fuel leakage or signs of fuel leakage	B

Result	Proceed to
There is foreign matter or signs that fuel pump was stuck	A
There is no foreign matter and no signs that fuel pump was stuck	B

Result	Proceed to
Engine can be started	A
Engine cannot be started	B

Result	Proceed to
NG	A
OK (w/ Entry and Start System)	B
OK (w/o Entry and Start System)	C

Result	Proceed to
Below 147 kPa (1.5 kgf/cm²) (5 minutes after stopping the engine)	A
147 kPa (1.5 kgf/cm²) or higher (5 minutes after stopping the engine)	B*

Tester Operation	Specified Condition
ON	Operating sound heard
OFF	Operating sound not heard

Tester Operation	Specified Condition
OFF	Normal engine speed
ON	Soon after OCV switched from OFF to ON, engine idles roughly or stalls

Tester Display	Injection Volume	Specified Condition
AFS Voltage B1 S1	+25%	Air fuel ratio sensor output voltage is below 3.1 V
AFS Voltage B1 S1	-12.5%	Air fuel ratio sensor output voltage is higher than 3.4 V

Result	Proceed to
All cylinders are normal	A
One cylinder is abnormal*1	B
All cylinders are abnormal2, 3	C

Vehicle State	Specified Condition
Cranking engine	304 to 343 kPa (3.1 to 3.5 kgf/cm²)
5 minutes after stopping engine	147 kPa (1.5 kgf/cm²) or higher