Dtc 13 (2) Engine Speed Sensor Circuit Malfunction

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

CHECK HARNESS AND CONNECTOR (ECM - ENGINE SPEED SENSOR)

DTC 13 (2) Engine Speed Sensor Circuit Malfunction

DESCRIPTION

The engine speed sensor in the engine control system contains a signal plate and a pickup coil for the NE signal. The NE signal plate has 56 teeth and is mounted in the injection pump. The NE signal sensor generates 56 signals for every 2 engine revolutions. The ECM detects the engine speed and cam lift position of the injection pump. The ECM uses the TDC and NE signals for injection timing control. The NE signal is also used for injection volume control.

DTC No.	DTC Detection Condition	Trouble Area
13 (2)	No NE signal is sent to the ECM for 0.5 sec. or more at 680 rpm or more.	Open or short in engine speed sensor circuit Engine speed sensor ECM
13 (2)	No NE signal is sent to the ECM for 2.0 sec. or more during cranking.

WIRING DIAGRAM

Refer to DTC 12 (See page ).

INSPECTION PROCEDURE

1.INSPECT ENGINE SPEED SENSOR

Inspect the engine speed sensor (See page ).

REPLACE INJECTION PUMP ASSEMBLY

OK

2.CHECK ECM (TDC, NE SIGNAL)

Dtc 13 (2) Engine Speed Sensor Circuit Malfunction. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

While cranking or idling, check the waveforms according to the value(s) in the table below.

OK:
Tester Connection Condition Specified Condition
C101-17 (TDC+) - C101-16 (TDC-) Idling Correct waveform is as shown
C101-19 (NE+) - C101-18 (NE-) Idling Correct waveform is as shown

Text in Illustration
*a	Component with harness connected (ECM)
*b	TDC and NE Signal Waveforms

Перейдите к шагу 3

REPLACE ECM

3.CHECK HARNESS AND CONNECTOR (ECM - ENGINE SPEED SENSOR)

Disconnect the engine speed 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
C103-2 (NE+) - C101-19 (NE+) Always Below 1 Ω
C103-1 (NE-) - C101-18 (NE-) Always Below 1 Ω

Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
C103-2 (NE+) or C101-19 (NE+) - Body ground Always 10 kΩ or higher
C103-1 (NE-) or C101-18 (NE-) - Body ground Always 10 kΩ or higher

Reconnect the engine speed sensor connector.

Reconnect the ECM connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK FOR INTERMITTENT PROBLEMS

Dtc 22 Engine Coolant Temperature Sensor Circuit Malfunction

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

When using intelligent tester:

READ VALUE USING INTELLIGENT TESTER (ENGINE COOLANT TEMPERATURE)

READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN WIRE HARNESS)

READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN ECM)

READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS)

READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN ECM)

When not using intelligent tester:

CHECK ECM (THW VOLTAGE)

INSPECT ENGINE COOLANT TEMPERATURE SENSOR

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

DTC 22 Engine Coolant Temperature Sensor Circuit Malfunction

DESCRIPTION

The engine coolant temperature sensor senses the coolant temperature. A thermistor built into the sensor changes its resistance according to the coolant temperature. The lower the coolant temperature, the higher the thermistor resistance value, and the higher the coolant temperature, the lower the thermistor resistance value (see Fig. 1).

The engine coolant temperature sensor is connected to the ECM. The 5 V power source voltage from the ECM is applied to the engine coolant temperature sensor from terminal THW via resistor R. That is, resistor R and the engine coolant temperature sensor are connected in series. When the resistance value of the engine coolant temperature sensor changes in accordance with changes in the coolant temperature, the voltage at terminal THW also changes. Based on this signal, the ECM increases the fuel injection volume to improve driveability during cold engine operation.

Dtc 22 Engine Coolant Temperature Sensor Circuit Malfunction. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

DTC No.	DTC Detection Condition	Trouble Area
22	Open or short in the engine coolant temperature sensor circuit for 0.5 sec. or more.	Open or short in engine coolant temperature sensor circuit Engine coolant temperature sensor ECM

WIRING DIAGRAM

Dtc 22 Engine Coolant Temperature Sensor Circuit Malfunction. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

INSPECTION PROCEDURE

УКАЗАНИЕ:

If DTCs related to different systems that have terminal E2 as the ground terminal are stored simultaneously, there may be an open circuit between terminal E2 and body ground.

Read freeze frame data using the intelligent tester. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

When using intelligent tester:

1.READ VALUE USING INTELLIGENT TESTER (ENGINE COOLANT TEMPERATURE)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

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

Result
Result	Proceed to
-40°C (-40°F)	A
140°C (284°F) or higher	B
Value is same as actual engine coolant temperature	C

УКАЗАНИЕ:

When DTC 22 is stored, the type of malfunction can be determined based on the engine coolant temperature (see below).

Temperature Displayed	Malfunction
-40°C (-40°F)	Open circuit
140°C (284°F) or higher	Short circuit

Перейдите к шагу 4

CHECK FOR INTERMITTENT PROBLEMS

A

2.READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN WIRE HARNESS)

Disconnect the engine coolant temperature sensor connector.

Connect terminals 1 and 2 of the engine coolant temperature sensor harness side connector.

Turn the ignition switch to ON.

Read the temperature value on the intelligent tester.

OK:
140°C (284°F) or higher

Text in Illustration
*1	Engine Coolant Temperature Sensor
*2	ECM
*a	Front view of wire harness connector (to Engine Coolant Temperature Sensor)

Reconnect the engine coolant temperature sensor connector.

Перейдите к шагу 3

REPLACE ENGINE COOLANT TEMPERATURE SENSOR

3.READ VALUE USING INTELLIGENT TESTER (CHECK FOR OPEN IN ECM)

Connect terminals THW and E2 of the ECM connector.

Turn the ignition switch to ON.

Read the temperature value on the intelligent tester.

OK:
140°C (284°F) or higher

Text in Illustration
*1	Engine Coolant Temperature Sensor
*2	ECM
*a	Component with harness connected (ECM)

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

4.READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN WIRE HARNESS)

Disconnect the engine coolant temperature sensor connector.

Turn the ignition switch to ON.

Read the temperature value on the intelligent tester.

OK:
-40°C (-40°F)

Text in Illustration
*1	Engine Coolant Temperature Sensor
*2	ECM

Reconnect the engine coolant temperature sensor connector.

Перейдите к шагу 5

REPLACE ENGINE COOLANT TEMPERATURE SENSOR

5.READ VALUE USING INTELLIGENT TESTER (CHECK FOR SHORT IN ECM)

Disconnect the ECM connector.

Turn the ignition switch to ON.

Read the temperature value on the intelligent tester.

OK:
-40°C (-40°F)

Text in Illustration
*1	Engine Coolant Temperature Sensor
*2	ECM
*a	Rear view of wire harness connector (to ECM)

Reconnect the ECM connector.

REPLACE ECM

REPAIR OR REPLACE HARNESS OR CONNECTOR

When not using intelligent tester:

1.CHECK ECM (THW VOLTAGE)

Turn the ignition switch to ON.

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

Standard Voltage:
Tester Connection Condition Specified Condition
C102-4 (THW) - C102-9 (E2) 20°C (68°F) 0.2 to 3.8 V
C102-4 (THW) - C102-9 (E2) 80°C (176°F) 0.1 to 1.5 V

Text in Illustration
*a	Component with harness connected (ECM)

Перейдите к шагу 2

CHECK FOR INTERMITTENT PROBLEMS

2.INSPECT ENGINE COOLANT TEMPERATURE SENSOR

Inspect the engine coolant temperature sensor (See page ).

REPLACE ENGINE COOLANT TEMPERATURE SENSOR

OK

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

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
C111-2 - C102-4 (THW) Always Below 1 Ω
C111-1 - C102-9 (E2) Always Below 1 Ω

Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
C111-2 or C102-4 (THW) - Body ground Always 10 kΩ or higher

Reconnect the engine coolant temperature sensor connector.

Reconnect the ECM connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

REPLACE ECM

Dtc 12 Crankshaft Position Sensor Circuit Malfunction

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

INSPECT CRANKSHAFT POSITION SENSOR

CHECK ECM (TDC, NE SIGNAL)

CHECK HARNESS AND CONNECTOR (ECM - CRANKSHAFT POSITION SENSOR)

DTC 12 Crankshaft Position Sensor Circuit Malfunction

DESCRIPTION

The crankshaft position sensor in the engine control system contains a signal plate and a pickup coil for the TDC signal. The TDC signal plate has 1 tooth on its outer circumference. The TDC signal sensor generates 1 signal for every crankshaft revolution. The ECM detects the top dead center position based on the TDC signal.

DTC Code	DTC Detection Condition	Trouble Area
12	No TDC signal is sent to the ECM at 400 rpm or more.	Open or short in crankshaft position sensor circuit Crankshaft position sensor ECM

WIRING DIAGRAM

Dtc 12 Crankshaft Position Sensor Circuit Malfunction. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

INSPECTION PROCEDURE

1.INSPECT CRANKSHAFT POSITION SENSOR

Inspect the crankshaft position sensor (See page ).

REPLACE CRANKSHAFT POSITION SENSOR

OK

2.CHECK ECM (TDC, NE SIGNAL)

Dtc 12 Crankshaft Position Sensor Circuit Malfunction. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

While cranking or idling, check the waveforms according to the value(s) in the table below.

OK:
Tester Connection Condition Specified Condition
C101-17 (TDC+) - C101-16 (TDC-) Idling Correct waveform is as shown
C101-19 (NE+) - C101-18 (NE-) Idling Correct waveform is as shown

Text in Illustration
*a	Component with harness connected (ECM)
*b	TDC and NE Signal Waveforms

Перейдите к шагу 3

REPLACE ECM

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

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
C109-1 - C101-17 (TDC+) Always Below 1 Ω
C109-2 - C101-16 (TDC-) Always Below 1 Ω

Standard Resistance (Check for Short):
Tester Connection Condition Specified Condition
C109-1 or C101-17 (TDC+) - Body ground Always 10 kΩ or higher
C109-2 or C101-16 (TDC-) - Body ground Always 10 kΩ or higher

Reconnect the crankshaft position sensor connector.

Reconnect the ECM connector.

REPAIR OR REPLACE HARNESS OR CONNECTOR

CHECK FOR INTERMITTENT PROBLEMS

Система Ecd - Таблица Диагностических Кодов Неисправностей

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

СИСТЕМА ECD - ТАБЛИЦА ДИАГНОСТИЧЕСКИХ КОДОВ НЕИСПРАВНОСТЕЙ

УКАЗАНИЕ:

Parameters listed in the chart may not be exactly the same as yours depending on the type of instrument and other factors.

If a trouble code is output during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "See page" below.

ECD System
DTC Code	Detection Item	Trouble Area	MIL	Memory	See page
12	Crankshaft Position Sensor Circuit Malfunction	- Open or short in crankshaft position sensor circuit - Crankshaft position sensor - ECM	Comes on	DTC stored
13 (2)	Engine Speed Sensor Circuit Malfunction	- Open or short in engine speed sensor circuit - Engine speed sensor - ECM	Comes on	DTC stored
14 (4)	Timing Control System Malfunction	- Open or short in timing control valve circuit - Timing control valve - Fuel filter element assembly (clogging) - Fuel (frozen, air present) - Injection pump assembly (internal pressure and timing control valve) - ECM	Comes on	DTC stored
15 (4)	Throttle Motor Circuit Malfunction	- Open or short in throttle control motor circuit - Throttle control motor - Throttle valve - Open or short in throttle open switch circuit - Throttle open switch - ECM	Comes on	DTC stored
17 (1)	Interior IC Malfunction	ECM	Comes on	DTC stored
18 (5)	Spill Control Circuit Malfunction	- Open or short in spill control valve circuit - Spill control valve - ECM	Comes on	DTC stored
19 (1)	Accelerator Position Sensor Circuit Malfunction	- Open or short in accelerator pedal position sensor circuit - Accelerator pedal position sensor - ECM	Comes on	DTC stored
19 (2)	Accelerator Position Sensor Range / Performance Problem	- Open or short in accelerator pedal position sensor circuit - Accelerator pedal position sensor - ECM	Comes on	DTC stored
22	Engine Coolant Temperature Sensor Circuit Malfunction	- Open or short in engine coolant temperature sensor circuit - Engine coolant temperature sensor - ECM	Comes on	DTC stored
24	Air Temperature Circuit Malfunction	- Open or short in intake air temperature sensor circuit - Intake air temperature sensor - ECM	Comes on	DTC stored
32 (1)	Injection Pump System Malfunction	- Open or short in injection pump correction unit circuit - Injection pump correction unit - ECM	-	DTC stored
35	Manifold Absolute Pressure / Barometric Pressure Circuit Malfunction	- Open or short in manifold absolute pressure sensor circuit - Manifold absolute pressure sensor - ECM	Comes on	DTC stored
39 (5)	Fuel Temperature Sensor Circuit Malfunction	- Open or short in fuel temperature sensor circuit - Fuel temperature sensor - ECM	Comes on	DTC stored
42	Vehicle Speed Sensor Signal Circuit Malfunction	- Open or short in vehicle speed sensor circuit - Vehicle speed sensor - Combination meter - ECM	Comes on	DTC stored
51	Stop Light Switch Circuit Malfunction	- Open or short in stop light switch signal circuit - Stop light switch - ECM	-	DTC stored

Система Ecd - Режимы Data List / Active Test

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

READ DATA LIST

PERFORM ACTIVE TEST

СИСТЕМА ECD - РЕЖИМЫ DATA LIST / ACTIVE TEST

READ DATA LIST

УКАЗАНИЕ:

Using the intelligent tester to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

ПРИМЕЧАНИЕ:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

Warm up the engine.

Turn the ignition switch off.

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the intelligent tester on.

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

Read the Data List.

Engine and ECT
Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Notes
Coolant Temp (COOLANT TEMP)	Engine coolant temperature/ Min.: -40°C, Max.: 215°C	80 to 95°C (176 to 203°F): After warming up engine	If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted.
PIM (PIM)	Absolute pressure inside intake manifold/ Min.: 0 kPa, Max.: 255 kPa	98 to 101 kPa: Idling 94 to 101 kPa: Engine running at 2000 rpm 93 to 101 kPa: Engine running at 3000 rpm	-
Engine SPD (ENGINE SPD)	Engine speed/ Min.: 0 rpm, Max.: 16383.75 rpm	720 to 820 rpm: Idling (A/C off) after warming up engine	-
Vehicle SPD (VEHICLE SPD)	Vehicle speed/ Min.: 0 km/h, Max.: 255 km/h	Actual vehicle speed	Speed indicated on the speedometer.
Intake Air (INTAKE AIR)	Intake air temperature/ Min.: -40°C, Max.: 215°C	Equivalent to temperature at intake manifold	If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted.
Injection Volume (INJ VOLUME)	Injection volume/ Min.: 0 mm³, Max.: 1279.98 mm³	3 to 11 mm³: Idling	-
Injection Timing (INJ TIMING)	Injection timing/ Min.: 0 CA, Max.: 51 CA	17 to 19 CA: Idling after warming up engine	-
Fuel Temp. (FUEL TEMP)	Fuel temperature status/ Min.: -40°C, Max.: 215°C	Actual fuel temperature	If the value is -40°C (-40°F) or 140°C (284°F), the sensor circuit is open or shorted.
Accel Position (ACCEL POSITION)	Accelerator position status/ Min.: 0%, Max.: 100%	10 to 22%: Accelerator pedal released 52 to 90%: Accelerator pedal depressed	Read the value with the ignition switch ON (do not start the engine).
Throttle Step POS (THROTTLE POS)	Throttle step position/ Min.: 0 steps, Max.: 255 steps	209 steps: Throttle fully closed 0 steps: Throttle fully open	Read the value with the ignition switch ON (do not start the engine).
#Codes (#CODES)	Number of stored DTC codes/ Min.: 0, Max.: 255	0	-
Stop Light SW (STOP LIGHT SW)	Stop light switch/ ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
A/C SIG (A/C SIGNAL)	A/C signal/ ON or OFF	ON: A/C switch turned on	-
Starter SIG (STARTER SIG)	Starter signal/ ON or OFF	ON: Cranking	-
Accel Open SW (ACCEL OPEN SW)	Accelerator pedal open switch/ ON or OFF	OFF: Accelerator pedal released	-
SPD Test (SPD Test)	Check mode result for vehicle speed sensor/ 0: COMPL, 1: INCOMPL	-	See page
Check Mode (CHECK MODE)	Check mode/ ON or OFF	ON: Check mode on	-
A/C Cut SIG (A/C CUT SIG)	A/C cut signal/ ON or OFF	ON: A/C compressor on	-

УКАЗАНИЕ:

Normal Condition: If no idling conditions are specified, the shift lever should be in N, and the A/C switch and all accessory switches should be off.

PERFORM ACTIVE TEST

УКАЗАНИЕ:

Using the intelligent tester to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON.

Turn the intelligent tester on.

Enter the following menus: Powertrain / Engine and ECT / Active Test.

Perform the Active Test.

Engine and ECT
Tester Display	Test Part	Control Range	Diagnostic Notes
A/C Cut Signal	Control A/C cut signal	ON/OFF	-
TC/TE1	Turn ON and OFF TC and TE1 connection	ON/OFF	ON: TC and TE1 are connected. OFF: TC and TE1 are disconnected.

Система Ecd - Таблица Работы В Аварийном Режиме

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

СИСТЕМА ECD - ТАБЛИЦА РАБОТЫ В АВАРИЙНОМ РЕЖИМЕ

If any of the following DTCs are stored, the ECM enters fail-safe mode.

DTC No.	Fail-Safe Operation	Fail-Safe Deactivation Conditions
12	TCV duty is fixed at 30%.	2 or more TDC signals are detected for 4 engine revolutions
13 (2)	Fuel cut is performed. TCV duty is fixed at 2%. Throttle valve is closed.	2 or more NE signals are detected in 0.5 sec.
15 (4)	The engine power is limited	Ignition switch off
18 (5)	Fuel cut is performed. Throttle valve is closed.	Ignition switch off or engine started
19 (1)	The engine power is limited	Ignition switch off
19 (2)	The engine power is limited	Ignition switch off
22	Engine coolant temp. is fixed at 9°C (48°F).	Returns to normal
23	Intake air temp. is fixed at 130°C (266°F).	Returns to normal
35	Intake air pressure is fixed at 101.3 kPa (760 mmHg, 30 in.Hg).	Returns to normal
39 (5)	Fuel temp. is fixed at 20°C (68°F).	Returns to normal
42	Vehicle speed is fixed at 0 km/h (0 mph).	Vehicle speed is more than 10 km/h (6 mph)

Система Ecd - Проведение Активной Диагностики

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

CHECK MODE PROCEDURE

СИСТЕМА ECD - ПРОВЕДЕНИЕ АКТИВНОЙ ДИАГНОСТИКИ

УКАЗАНИЕ:

Intelligent tester only:

Check mode has a higher sensitivity to malfunctions and can detect malfunctions that normal mode cannot detect. Check mode can also detect all the malfunctions that normal mode can detect.

In check mode, the ECM stores DTCs using 1 trip detection logic.

ПРИМЕЧАНИЕ:

All the stored DTCs and freeze frame data are cleared if: 1) the ECM is changed from normal mode to check mode or vice versa; or 2) the ignition switch is turned from ON to ACC or off during check mode. Before changing modes, always check and make a note of any DTCs and freeze frame data.

CHECK MODE PROCEDURE

Make sure that the following conditions are met:

Battery voltage is 11 V or more.

Shift lever is in N.

A/C switch is off.

Turn the ignition switch off (if ON).

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON and turn the tester on.

Enter the following menus: Powertrain / Engine and ECT / Check Mode.

Система Ecd - Проведение Активной Диагностики. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

Make sure the MIL flashes as shown in the illustration.

Start the engine (the MIL should turn off).

Simulate the conditions of the malfunction described by the customer.

Check the DTC and freeze frame data using the intelligent tester.

After confirming the DTCs, inspect the appropriate circuits (See page ).

Система Ecd - Проверка / Сброс Кодов Dtc

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

CHECK DTC (using the intelligent tester)

CHECK DTC (not using the intelligent tester)

CLEAR DTCS AND FREEZE FRAME DATA (using the intelligent tester)

CLEAR DTCS AND FREEZE FRAME DATA (not using the intelligent tester)

СИСТЕМА ECD - ПРОВЕРКА / СБРОС КОДОВ DTC

ПРИМЕЧАНИЕ:

Intelligent tester only:

When the diagnosis system is changed from normal mode to check mode or vice versa, all the DTCs and freeze frame data recorded in normal mode will be cleared. Before changing modes, always check and make a note of any DTCs and freeze frame data.

CHECK DTC (using the intelligent tester)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON and turn the tester on.

Система Ecd - Проверка / Сброс Кодов Dtc. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

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

Check and make a note of DTCs and freeze frame data.

Confirm the details of the DTCs (See page ).

CHECK DTC (not using the intelligent tester)

Turn the ignition switch to ON.

Using SST, connect terminals 13 (TC) and 4 (CG) of the DLC3.

SST
09843-18040

Read the DTCs by observing the MIL. If no DTC is stored, the MIL blinks as shown in the illustration.

Example

DTCs 12 and 31 are stored and the MIL starts outputting the DTCs as shown in the illustration. The MIL blinking pattern of DTC 12 will be output first.

УКАЗАНИЕ:

If 2 or more DTCs are stored, the MIL will output the DTCs in numerical order.

A 2.5 second pause will occur. This pause will occur between the MIL blinking patterns of each DTC.

The MIL blinking pattern of DTC 31 will be output.

A 4.5 second pause will occur. This pause will occur when the MIL blinking pattern is the last of a string of multiple DTCs.

The MIL will repeat the output of the string of DTCs again.

Check the details of the malfunction using the DTC chart (See page ).

After completing the check, disconnect terminals 13 (TC) and 4 (CG) to turn off the output.

Confirm the details of the DTCs (See page ).

CLEAR DTCS AND FREEZE FRAME DATA (using the intelligent tester)

Connect the intelligent tester to the DLC3.

Turn the ignition switch to ON (do not start the engine) and turn the tester on.

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

Clear DTCs and freeze frame data by pressing the YES button on the tester.

CLEAR DTCS AND FREEZE FRAME DATA (not using the intelligent tester)

Perform either one of the following operations.

Remove the EFI fuse from the engine room relay block, located inside the engine compartment, for more than 1 minute.

Text in Illustration
*1	Engine Room Relay Block
*2	EFI Fuse

Disconnect the cable from the negative (-) battery terminal for more than 1 minute.

ПРИМЕЧАНИЕ:

After reconnecting the battery cable, the radio and clock need to be adjusted as they were previously.

Система Ecd - Система Диагностики

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

DESCRIPTION

NORMAL MODE AND CHECK MODE

2 TRIP DETECTION LOGIC

FREEZE FRAME DATA

CHECK DLC3

INSPECT BATTERY VOLTAGE

CHECK MIL

СИСТЕМА ECD - СИСТЕМА ДИАГНОСТИКИ

DESCRIPTION

When troubleshooting Multiplex OBD (M-OBD) vehicles, the vehicle must be connected to the intelligent tester. Various data output from the vehicle's Engine Control Module (ECM) can then be read.
The Malfunction Indicator Lamp (MIL) is illuminated when the vehicle's onboard computer detects a malfunction in the computer itself or in drive system components. In addition, the applicable Diagnostic Trouble Codes (DTCs) are recorded in the ECM memory (See page ).
If the malfunction does not reoccur, the MIL stays illuminated until the ignition switch is turned off, and the MIL turns off when the engine is started. However, the DTCs remain stored in the ECM memory.
To check DTCs, connect the intelligent tester to the Data Link Connector 3 (DLC3) on the vehicle or connect terminals TC and CG of the DLC3 (DTCs will be output by the combination meter assembly).

Система Ecd - Система Диагностики. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

NORMAL MODE AND CHECK MODE

The diagnosis system operates in "normal mode" during normal vehicle use. In normal mode, "2 trip detection logic" is used to ensure accurate detection of malfunctions. "Check mode" is also available to technicians as an option. In check mode, "1 trip detection logic" is used when simulating malfunction symptoms to increase the system's ability to detect malfunctions, including intermittent malfunctions (See page ).

2 TRIP DETECTION LOGIC

When a malfunction is first detected, the malfunction is temporarily stored in the ECM memory (1st trip). If the same malfunction is detected during the next subsequent drive cycle, the MIL is illuminated (2nd trip).

FREEZE FRAME DATA

Freeze frame data records the engine conditions (fuel system information, calculated engine load, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc.) when a malfunction is detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air-fuel ratio was lean or rich, and other data from the time the malfunction occurred.

CHECK DLC3

The vehicle's ECM uses the ISO 14230 (M-OBD) communication protocol. The terminal arrangement of the DLC3 complies with ISO 15031-03 and matches the ISO 14230 format.

Symbol (Terminal No.)	Terminal Description	Condition	Specified Condition
SIL (7) - SG (5)	Bus "+" line	During transmission	Pulse generation
CG (4) - Body ground	Chassis ground	Always	Below 1 Ω
SG (5) - Body ground	Signal ground	Always	Below 1 Ω
BAT (16) - Body ground	Battery positive	Always	11 to 14 V

УКАЗАНИЕ:

Connect the cable of the intelligent tester to the DLC3, turn the ignition switch to ON and attempt to use the intelligent tester. If the display indicates that a communication error has occurred, there is a problem either with the vehicle or with the tester.

If communication is normal when the tester is connected to another vehicle, inspect the DLC3 on the original vehicle.

If communication is still not possible when the tester is connected to another vehicle, the problem is probably in the tester itself. Consult the service department listed in the tester's instruction manual.

INSPECT BATTERY VOLTAGE

If the voltage is below 11 V, recharge or replace the battery before proceeding.

Battery voltage:
11 to 14 V

CHECK MIL

The MIL illuminates when the ignition switch is turned to ON and the engine is not running.

УКАЗАНИЕ:

If the MIL is not illuminated, check the MIL circuit (See page ).

When the engine is started, the MIL should turn off. If the lamp remains illuminated, the diagnosis system has detected a malfunction or abnormality in the system.

Система Ecd - Контакты Ecm

Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150 - СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E

СИСТЕМА ECD - КОНТАКТЫ ECM

Система Ecd - Контакты Ecm. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

УКАЗАНИЕ:

Each ECM terminal's standard voltage is shown in the table below.

In the table, first follow the information under "Condition". Look under "Terminal No. (Symbol)" for the terminals to be inspected. The standard voltage between the terminals is shown under "Specified Condition". Use the illustration above as a reference for the ECM terminals.

Terminal No. (Symbol)	Wiring Color	Terminal Description	Condition	Specified Condition
G61-1 (BATT) - C101-14 (E1)	L - BR	Battery (for measuring the battery voltage and for ECM memory)	Always	11 to 14 V
G61-2 (SREL) - C101-13 (E01)	R - W-B	GLOW relay	Cranking	11 to 14 V
G61-2 (SREL) - C101-13 (E01)	R - W-B	GLOW relay	Idling (engine started and 600 sec. have passed)	0 to 1.5 V
G61-3 (MREL) - C101-14 (E1)	V - BR	MAIN relay	Ignition switch ON	11 to 14 V
G61-3 (MREL) - C101-14 (E1)	V - BR	MAIN relay	Ignition switch off (2 sec. after ignition switch off)	0 to 1.5 V
G61-4 (TC) - C101-14 (E1)	V - BR	Terminal TC of DLC3	Ignition switch ON	11 to 14 V
G61-5 (W) - C101-14 (E1)	V - BR	MIL	MIL illuminated	0 to 3 V
G61-5 (W) - C101-14 (E1)	V - BR	MIL	MIL not illuminated	11 to 14 V
G61-8 (THWO) - C101-14 (E1)	L - BR	Combination meter assembly	Ignition switch ON	Pulse generation (See waveform 1)
G61-9 (SPD) - C101-14 (E1)	R - BR	Speed signal from combination meter assembly	Ignition switch ON, driving wheel rotating slowly	Pulse generation (See waveform 2)
G61-11 (STA) - C101-14 (E1)	W - BR	Starter signal	Cranking	6 V or more
G61-12 (+B) - C101-14 (E1)	W - BR	Power source of ECM	Ignition switch ON	11 to 14 V
G61-14 (IGSW) - C101-14 (E1)	W - BR	Ignition switch	Ignition switch ON	11 to 14 V
G61-15 (SIL) - C101-14 (E1)	W - BR	Terminal SIL of DLC3	Intelligent tester connected to DLC3	Pulse generation
G61-19 (STP) - C101-14 (E1)	V - BR	Stop light switch	Brake pedal depressed	11 to 14 V
G61-19 (STP) - C101-14 (E1)	V - BR	Stop light switch	Brake pedal released	Below 1.5 V
G62-1 (GIND) - C101-14 (E1)	R - BR	Glow indicator light	Glow indicator light lights up	0 to 3 V
G62-1 (GIND) - C101-14 (E1)	R - BR	Glow indicator light	Glow indicator light does not light up	11 to 14 V
G62-2 (AC1) - C101-14 (E1)	LG - BR	A/C amplifier	A/C switch on (magnetic clutch on)	Below 1.5 V
G62-2 (AC1) - C101-14 (E1)	LG - BR	A/C amplifier	A/C switch off	7.5 to 14 V
G62-8 (ACT) - C101-14 (E1)	R - BR	A/C amplifier	Ignition switch ON	11 to 14 V
G62-8 (ACT) - C101-14 (E1)	R - BR	A/C amplifier	A/C cut performed (driving below 30 km/h (18.6 mph), accelerator pedal fully depressed for 5 sec.)	0 to 3 V
G62-5 (VPA) - G62-4 (EPA)	L - P	Accelerator pedal position sensor (for engine control)	Ignition switch ON, accelerator pedal released	0.5 to 1.1 V
G62-5 (VPA) - G62-4 (EPA)	L - P	Accelerator pedal position sensor (for engine control)	Ignition switch ON, accelerator pedal depressed	2.6 to 4.5 V
G62-12 (VPA2) - G62-4 (EPA)	GR - P	Accelerator pedal position sensor (for sensor malfunction detection)	Ignition switch ON, accelerator pedal released	1.2 to 2.0 V
G62-12 (VPA2) - G62-4 (EPA)	GR - P	Accelerator pedal position sensor (for sensor malfunction detection)	Ignition switch ON, accelerator pedal depressed	3.4 to 5.3 V
G62-6 (VCPA) - G62-4 (EPA)	LG - P	Power source of accelerator pedal position sensor (for VPA)	Ignition switch ON	4.5 to 5.5 V
G62-7 (TACH) - C101-14 (E1)	P - BR	Engine speed sensor	Idling	Pulse generation (See waveform 3)
G62-11 (ST1-) - C101-14 (E1)	B - BR	Stop light switch	Brake pedal depressed	Below 1.5 V
G62-11 (ST1-) - C101-14 (E1)	B - BR	Stop light switch	Brake pedal released	11 to 14 V
C102-1 (VC) - C102-9 (E2)	R-W - BR	Power source of sensor (specific voltage)	Ignition switch ON	4.75 to 5.25 V
C102-2 (PIM) - C102-9 (E2)	L-B - BR	Manifold absolute pressure sensor	60 kPa (450 mmHg, 17.7 in.Hg) vacuum applied	0.2 to 0.8 V
C102-2 (PIM) - C102-9 (E2)	L-B - BR	Manifold absolute pressure sensor	207 kPa (1550 mmHg, 61.0 in.Hg) vacuum applied	4.2 to 4.8 V
C102-3 (THA) - C102-9 (E2)	B-L - BR	Intake air temperature sensor	Idling, air intake temp. 0°C (32°F) to 80°C (176°F)	0.5 to 3.4 V
C102-4 (THW) - C102-9 (E2)	R-L - BR	Engine coolant temperature sensor	Idling, engine coolant temp. 60°C (140°F) to 120°C (248°F)	0.2 to 1.0 V
C102-5 (THF) - C102-9 (E2)	G-B - BR	Fuel temperature sensor	Ignition switch ON (engine cold)	0.5 to 3.4 V
C102-6 (DATA) - C101-14 (E1)	Y - BR	Injection pump	Within 0.5 sec. after ignition switch ON	Pulse generation
C102-14 (CLK) - C101-14 (E1)	L - BR	Injection pump	Within 0.5 sec. after ignition switch ON	Pulse generation
C102-15 (THOP) - C101-14 (E1)	GR - BR	Throttle open switch	Idling (engine warmed up)	11 to 14 V
C102-15 (THOP) - C101-14 (E1)	GR - BR	Throttle open switch	Ignition switch ON (once within 5 sec.)	0 to 3 V
C101-7 (LU-B) - C101-13 (E01)	L-Y - W-B	Throttle control motor (intake shutter)	Racing (engine warmed up)	Pulse generation (See waveform 4)
C101-8 (LU+B) - C101-13 (E01)	L-R - W-B	Throttle control motor (intake shutter)	Racing (engine warmed up)	Pulse generation (See waveform 4)
C101-9 (LU-A) - C101-13 (E01)	L-W - W-B	Throttle control motor (intake shutter)	Racing (engine warmed up)	Pulse generation (See waveform 4)
C101-10 (LU+A) - C101-13 (E01)	L-B - W-B	Throttle control motor (intake shutter)	Racing (engine warmed up)	Pulse generation (See waveform 4)
C101-11 (TCV) - C101-13 (E01)	R-W - W-B	Timing control valve	Ignition switch ON	11 to 14 V
C101-11 (TCV) - C101-13 (E01)	R-W - W-B	Timing control valve	Idling	Pulse generation (See waveform 5)
C101-12 (SPV+) - C101-14 (E1)	R-L - BR	Spill control valve	Ignition switch ON	11 to 14 V
C101-12 (SPV+) - C101-14 (E1)	R-L - BR	Spill control valve	Idling	Pulse generation
C101-25 (SPV-) - C101-14 (E1)	R-Y - BR	Spill control valve	Idling	Pulse generation (See waveform 7)
C101-17 (TDC+) - C101-16 (TDC-)	G - R	Crankshaft position sensor	Idling	Pulse generation (See waveform 6)
C101-19 (NE+) - C101-18 (NE-)	W - B	Engine speed sensor	Idling	Pulse generation (See waveform 6)

Waveform 1

Система Ecd - Контакты Ecm. СИСТЕМА УПРАВЛЕНИЯ ДВИГАТЕЛЕМ 5L-E. Land Cruiser Prado GRJ150 TRJ150 TRJ155 KDJ150 TRJ155 LJ150

A/C amplifier signal

Terminal No. (Symbol)	G61-8 (THWO) - C101-14 (E1)
Tester Range	5 V/DIV., 0.1 sec./DIV.
Condition	Idling

УКАЗАНИЕ:

Waveform time A changes according to coolant temperature.

Waveform 2

Speed signal

Terminal No. (Symbol)	G61-9 (SPD) - C101-14 (E1)
Tester Range	2 V/DIV., 20 msec./DIV.
Condition	Driving at approx. 20 km/h (12.4 mph)

УКАЗАНИЕ:

As vehicle speed increases, the wavelength becomes shorter.

As vehicle speed increases, the waveform's amplitude becomes greater.

Waveform 3

Engine speed signal

Terminal No. (Symbol)	G62-7 (TACH) - C101-14 (E1)
Tester Range	5 V/DIV., 20 msec./DIV.
Condition	Idling after warming up

УКАЗАНИЕ:

As engine speed increases, the wavelength becomes shorter.

Waveform 4

Throttle control motor signals

Terminal No. (Symbol)	C101-10 (LU+A) - C101-13 (E01) C101-8 (LU+B) - C101-13 (E01) C101-9 (LU-A) - C101-13 (E01) C101-7 (LU-B) - C101-13 (E01)
Tester Range	10 V/DIV., 0.5 msec./DIV.
Condition	Engine racing

Waveform 5

Timing control value signal

Terminal No. (Symbol)	C101-11 (TCV) - C101-13 (E01)
Tester Range	10 V/DIV., 10 msec./DIV.
Condition	During idling

Waveform 6

Crankshaft position sensor and engine speed sensor signals

Terminal No. (Symbol)	C101-17 (TDC+) - C101-16 (TDC-) C101-19 (NE+) - C101-18 (NE-)
Tester Range	2 V/DIV., 20 msec./DIV.
Condition	During idling

Waveform 7

Spill control valve signal

Terminal No. (Symbol)	C101-25 (SPV-) - C101-14 (E1)
Tester Range	20 V/DIV., 10 msec./DIV.
Condition	During idling

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Tester Connection	Condition	Specified Condition
C101-17 (TDC+) - C101-16 (TDC-)	Idling	Correct waveform is as shown
C101-19 (NE+) - C101-18 (NE-)	Idling	Correct waveform is as shown