Ecd System Engine Difficult To Start Or Stalling

DESCRIPTION

INSPECTION PROCEDURE

CHECK ENGINE CRANKING CONDITION

READ ALL OUTPUT DTCS

TAKE SNAPSHOT DURING STARTING AND IDLING (PROCEDURE 3)

CHECK SNAPSHOT (FUEL PRESS)

CHECK IF FUEL IS BEING SUPPLIED TO FUEL SUPPLY PUMP

CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)

REPLACE FUEL SUPPLY PUMP ASSEMBLY (SUCTION CONTROL VALVE)

BLEED AIR FROM FUEL SYSTEM

PERFORM FUEL SUPPLY PUMP INITIALIZATION

READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

INSPECT INJECTOR ASSEMBLY (INSPECTION FOR VALVE CLOSING PROBLEM)

CHECK AND REPAIR OR REPLACE CLOGGED FUEL PIPE (INCLUDING FROZEN FUEL) (FUEL TANK - FUEL SUPPLY PUMP)

BLEED AIR FROM FUEL SYSTEM

READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

REPLACE FUEL SUPPLY PUMP

PERFORM FUEL SUPPLY PUMP INITIALIZATION

REPLACE INJECTOR ASSEMBLIES OF ALL CYLINDERS

CHECK DATA LIST

REPLACE INJECTOR ASSEMBLIES OF ALL CYLINDERS

CHECK CYLINDER COMPRESSION PRESSURE

REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER

CLEAN FUEL FILTER CASE AND REPLACE FUEL FILTER

BLEED AIR FROM FUEL SYSTEM

PERFORM ECM INITIALIZATION AND REGISTER INJECTOR COMPENSATION CODE

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

INSPECT INJECTOR DRIVER (POWER SOURCE)

INSPECT INJECTOR ASSEMBLY

CHECK TEMPERATURE WHEN STARTING TROUBLE OCCURS

READ VALUE USING ENGINE COOLANT TEMPERATURE SENSOR (COOLANT TEMP)

INSPECT GLOW PLUG ASSEMBLY (RESISTANCE)

CHECK FUEL QUALITY

READ OUTPUT DTC (RELATED TO ENGINE)

CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

CHECK STARTING SYSTEM

CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

ECD SYSTEM - Engine Difficult to Start or Stalling

DESCRIPTION

Faults and Symptoms of Common Rail Diesel Components

1. Engine Control
   
   

   Mass Air Flow Meter

   Main fault		Decrease in performance (foreign matter is stuck)
   Symptoms		Lack of power, black smoke
   Data List		MAF
   HINT: The maximum fuel injection volume is controlled according to the output from the mass air flow meter.

   
   

   Intake System

   Symptom and Corresponding Main Fault		Lack of power (no black smoke) due to air filter blockage or crushed or leaking air duct Black smoke (no lack of power) due to leakage between the turbo and intake manifold
   Data List		MAP

   
   

   Turbocharger System

   Main fault		Air leak in the turbocharged air passage ECM not operating well Turbocharger (turbine, bearing)
   Symptoms		Lack of power (when vehicle is starting, under heavy load) (Black smoke is not emitted when racing while vehicle is stopped)
   Data List		MAP With the ignition switch ON or during idling, MAP = atmospheric pressure (standard atmospheric pressure = 101 kPa). When the engine speed is about 1500 rpm or more, the turbocharger starts to take effect and MAP becomes higher than atmospheric pressure. Atmospheric pressure decreases by 1 kPa each time elevation increases by 100 m, and is also affected by the current weather conditions.

   
   

   Exhaust System

   Main fault		Blockage
   Symptoms		Lack of power (high engine speed, under heavy load)

   
   

   Glow System

   Main fault		Open circuit, glow plug relay fault
   Symptoms		Difficult to start, rough idle, knocking, white smoke (when cold)
   Data List		Check the glow plug indicator light
   Diagnostic Point		Measure the resistance of the glow plug

   
   

   Battery

   Main fault		Battery is depleted
   Symptoms		Difficult to start (cannot crank, crank speed is low), horn is quiet
   Data List		Battery Voltage When cranking, battery voltage is below 5 V.

   
   

   Engine - 1

   Main fault		Damaged, seized up
   Symptoms		Cannot crank, crank speed is low, strange noise

   
   

   Engine - 2

   Main fault		Loss of compression
   Symptoms		Rough idle (lack of power always)
   Data List		Injection Feedback Val When an Injector Feedback Val is more than 3 mm3/st, there may be a malfunction in the corresponding cylinder.

   
   

   Start System

   Main fault		Starter system malfunction
   Symptoms		Difficult to start
   Data List		Starter Signal Ignition switch (STA) output: ON: Starter is operating OFF: Starter is not operating

2. Diesel Injection
   
   

   Fuel Supply Pump

   Main fault		-
   Symptoms		Difficult to start, engine stalling, rough idle, lack of power
   Data List		Fuel Press, Target Common Rail Pressure Fuel Press is within 5000 kPa of Target Common Rail Pressure during idling with the engine warmed up (engine coolant temperature is higher than 70°C (158°F)). If the fuel pressure is 20000 kPa below the target pressure, then a lack of power will be felt. If the fuel pressure is below 25000 kPa, then idling will be rough. HINT: The fuel pressure changes at engine start, but is approx. 25000 kPa at engine start after the engine is warmed up.
   Diagnostic Trouble Code		Even if Fuel Press is below Target Common Rail Pressure, a DTC will not be stored.

   
   

   Fuel Filter

   Main fault		Blockage
   Symptoms		Difficult to start, engine stalling, rough idle, lack of power
   Data List		Fuel Press, Target Common Rail Pressure Fuel Press is within 5000 kPa of Target Common Rail Pressure during idling with the engine warmed up (engine coolant temperature is higher than 70°C (158°F)). If the fuel pressure is 20000 kPa below the target pressure, then a lack of power will be felt. If the fuel pressure is below 25000 kPa, then idling will be rough. HINT: The fuel pressure changes at engine start, but is approx. 25000 kPa at engine start after the engine is warmed up.
   Diagnostic Trouble Code		Even if Fuel Press is below Target Common Rail Pressure, a DTC will not be stored.

   
   

   Injector Assembly

   Main fault		Blockage
   Symptoms		Rough idle, lack of power, black smoke, white smoke, knocking
   Data List		Injection Feedback Val When an Injector Feedback Val is more than 3 mm3/st, there may be a malfunction in the corresponding cylinder. This value can be read after idling for 1 minute.

   
   

   Injector Driver

   Main fault		Circuit fault: The injector assembly does not open.
   Symptoms		Difficult to start, rough idle, lack of power, black smoke, white smoke, knocking
   Data List		Same as injector assembly
   Diagnostic Trouble Code		When the injector driver has a fault, some DTCs may be stored.

   
   

   Fuel Pressure Sensor

   Main fault		Open circuit, decrease in performance (foreign matter is stuck)
   Symptoms		Difficult to start, rough idle, engine stall, lack of power
   Data List		Fuel Press, Target Common Rail Pressure Slowly raise the engine speed from idling to 3000 rpm with the vehicle stopped, and check that Fuel Press follows Target Common Rail Pressure. If the fuel pressure sensor malfunctions, the actual fuel pressure may deviate from the target fuel pressure. (However, the value may not deviate even when a malfunction is present).
   Diagnostic Trouble Code		When the fuel pressure sensor has a fault, some DTCs may be stored.

   
   

   Irregular Fuel

   Main fault		-
   Symptoms		Difficult to start, rough idle (especially when cold)

3. Diesel EGR
   
   

   EGR System

   Main fault		Does not move smoothly Does not close completely
   Symptoms		Rough idle EGR valve stuck closed: A loud turbocharger sound. EGR valve stuck open: Difficult to start (does not stall), black smoke, lack of power (if there is an excess in the quantity of EGR and there is a heavy load, when the vehicle starts moving, a lack of power will be felt).

4. Diesel Throttle
   
   

   Diesel Throttle System

   Main fault		Stuck, does not move smoothly
   Symptoms		Stuck closed: Lack of power, difficult to start, rough idle, engine stall, black smoke. These may occur when stuck almost fully closed. Stuck open: Turbocharger sound increases. When the engine is stopped, engine vibrations may occur.

Data List Related to Starting Trouble

1. MAP
   
2. MAF
   
3. Intake Air
   
4. Coolant Temp
   
5. Battery Voltage
   
6. Starter Signal
   
7. Target Common Rail Pressure
   
8. Fuel Press
   
9. Injection Feedback Val #1 (to #4)
   
10. Injection Volume
    

INSPECTION PROCEDURE

Explanation of Symptom

Starting Trouble

For good starting it is essential to have: Sufficient cranking speed. Properly operating engine preheating system. Good quality fuel. The fuel is ignited by the heat which is generated by compression pressure. With problems such as a depleted battery, the crankshaft speed can become low, or if the engine compression is poor due to leakage, the compression pressure will not rise and there will be difficulty starting. When the engine is cold, even if there is compression heat, it will escape from the combustion chamber. For this reason, when the engine is started when it is cold, the glow plugs heat the compressed air. Also, after starting the engine, by charging the glow plugs for a fixed time set according to the engine coolant temperature, diesel knocking and white smoke are prevented. The quantity of fuel injected is determined by the fuel pressure and also the amount of time the injector assembly is open.

Trouble Area Chart According to Problem Cause

NOTICE:

1. After replacing the ECM, the new ECM needs registration (Toyota Fortuner RM0000012XK005X.html) and initialization (Toyota Fortuner RM0000012X2005X.html).
   
2. After replacing the Fuel Supply Pump, the ECM needs initialization (Toyota Fortuner RM0000012X2005X.html).
   
3. After replacing an injector assembly, the ECM needs registration (Toyota Fortuner RM0000012XK005X.html).
   

HINT:

Specified values in the following troubleshooting flowchart are for reference only. Variations in the Data List values may occur depending on the measuring conditions or the vehicle age. Do not assume the vehicle is normal when the Data List outputs standard values. There may be concealed factors of the malfunction.

1.CHECK ENGINE CRANKING CONDITION

1. Check the engine cranking condition.
   
   

   Result

   Result	Proceed to
   Cranking is OK.	A
   Low cranking speed. HINT: When cranking speed is low, especially when the temperature is low, check if the engine oil grade matches the recommendation.	B
   Does not crank at all.	C

B	CHECK BATTERY CONDITION (Toyota Fortuner RM0000013Y000BX_01_0001.html)
C	Go to step 32

A

2.READ ALL OUTPUT DTCS

1. Connect the intelligent tester to the DLC3.
   

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

3. Enter the following menus: Utility / All Codes.
   
   

   Result

   Result	Proceed to
   No DTC is output	A
   DTCs related to engine are output	B

B	GO TO RELATED DTC (Toyota Fortuner RM0000012WD005X.html)

A

3.TAKE SNAPSHOT DURING STARTING AND IDLING (PROCEDURE 3)

1. Connect the intelligent tester to the DLC3.
   

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

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

4. Take a snapshot when idling with no load after the engine is warmed up and when starting trouble is occurring.
   

   HINT:

   1. A snapshot can be used to compare vehicle data from the time of the malfunction to normal data and is very useful for troubleshooting. The data in the illustration below is that of a normal vehicle, but as the data varies between individual vehicles, this data should only be used for reference.
      
   2. When there is trouble starting with a cold engine, take the snapshot when the engine is cold. Then warm up the engine (engine coolant temperature is 70°C (158°F) or higher) and after idling the vehicle for 1 minute (A/C off, electrical load off), take a snapshot of the data for 15 seconds while idling.
      
   3. Graphs like the ones shown below can be displayed by transferring the stored snapshot from the tester to a PC. Intelligent Viewer must be installed on the PC.
      
   4. Take a snapshot when the problem is occurring, such as when the engine is cold. However, if the problem does not reoccur, it is acceptable to only take a snapshot after the engine is warmed up and when the engine is started.
      

NEXT

4.CHECK SNAPSHOT (FUEL PRESS)

1. Check Fuel Press in the snapshot taken in procedure 3 when the engine was started.
   

   
   
   
   
   

   Result

   Result	Proceed to
   At the point in the illustration labeled "a", Fuel Press is less than 10000 kPa from the value of Fuel Press when cranking started	A
   At the point in the illustration labeled "c", Fuel Press is below Target Common Rail Pressure by 15000 kPa or more	B
   Fuel Press increases to a value that is higher than Target Common Rail Pressure immediately after cranking, and, at the point in the illustration labeled "d", Fuel Press is higher than Target Common Rail Pressure	C
   Except above	D

   HINT:

   1. Even if Fuel Press is temporarily higher than Target Common Rail Pressure, as shown at the point in the illustration labeled "b", the fuel supply pump is normal.
      
   2. Fuel pressure is about 25000 to 35000 kPa when the engine is cranking and the engine coolant temperature is 0°C (32°F) or higher.
      
   3. Fuel pressure increases rapidly during cranking.
      

B	Go to step 14
C	Go to step 26
D	Go to step 18

A

5.CHECK IF FUEL IS BEING SUPPLIED TO FUEL SUPPLY PUMP

1. Disconnect the inlet hose from the Fuel Supply Pump.
   

2. Operate the priming pump and check that fuel is being supplied to the Fuel Supply Pump.
   

   OK:

   Fuel is properly supplied to the fuel supply pump when the priming pump is operated.
   

   HINT:

   1. When there is a lack of fuel, fuel pressure drops.
      
   2. Inspect for Fuel Filter clogging (check that the Fuel Filter is not clogged).
      

3. Reconnect the inlet hose.
   

NG	Go to step 12

OK

6.CHECK HARNESS AND CONNECTOR (SUCTION CONTROL VALVE - ECM)

1. Disconnect the S8 valve connector.
   

2. Disconnect the E7 ECM connector.
   

3. Measure the resistance of the wire harness side connectors.
   

   Standard resistance:

   Tester Connection	Specified Condition
   S8-1 (PCV+) - E7-2 (PCV+)	Below 1 Ω
   S8-2 (PCV-) - E7-1 (PCV-)	Below 1 Ω
   S8-1 (PCV+) or E7-2 (PCV+) - Body ground	10 kΩ or higher
   S8-2 (PCV-) or E7-1 (PCV-) - Body ground	10 kΩ or higher

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

7.REPLACE FUEL SUPPLY PUMP ASSEMBLY (SUCTION CONTROL VALVE)

1. Replace the fuel supply pump assembly (Toyota Fortuner RM0000014FO006X.html).
   

NEXT

8.BLEED AIR FROM FUEL SYSTEM

1. Bleed the air from the fuel system (Toyota Fortuner RM0000014FK006X_01_0002.html).
   

NEXT

9.PERFORM FUEL SUPPLY PUMP INITIALIZATION

1. Perform fuel supply pump initialization (Toyota Fortuner RM0000012X2005X.html).
   

NEXT

10.READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

1. Connect the intelligent tester to the DLC3.
   

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

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

4. Start the engine.
   

5. Read the Fuel Press values while cranking and idling the engine.
   
   

   Result

   Result	Proceed to
   The engine cannot be started or the engine can be started but Fuel Press is below 20000 kPa 2 seconds after the starter signal changes from OFF to ON	B
   Except above	A

B	Go to step 11

A
END

11.INSPECT INJECTOR ASSEMBLY (INSPECTION FOR VALVE CLOSING PROBLEM)

1. Remove the glow plug assembly for all the cylinders (Toyota Fortuner RM0000013XP006X.html).
   

2. Visually check if there is fuel on the glow plugs.
   

   HINT:

   1. If there is fuel on a glow plug, fuel may be leaking from an injector assembly.
      
   2. After replacing an injector assembly, make sure that the common rail pressure (fuel pressure) is within 5000 kPa of the target fuel pressure while cranking the engine.
      
   3. If there is fuel on a glow plug, fuel may have mixed with the engine oil. Check the engine oil amount and whether the engine oil smells of diesel fuel. If the oil level is above the full line or the engine oil smells of diesel fuel, replace the engine oil.
      

3. Install the glow plug assembly (Toyota Fortuner RM0000013ZT006X.html).
   

NEXT	Go to step 21

12.CHECK AND REPAIR OR REPLACE CLOGGED FUEL PIPE (INCLUDING FROZEN FUEL) (FUEL TANK - FUEL SUPPLY PUMP)

1. Check and repair or replace the clogged fuel pipe.
   

NEXT

13.BLEED AIR FROM FUEL SYSTEM

1. Bleed the air from the fuel system (Toyota Fortuner RM0000014FK006X_01_0002.html).
   

NEXT	Go to step 25

14.READ VALUE USING INTELLIGENT TESTER (FUEL PRESS)

1. Check Fuel Press in the snapshot taken in procedure 3 when the engine was warmed up.
   
   

   Result

   Result	Proceed to
   Fuel Press is more than 5000 kPa from Target Common Rail Pressure	A
   Except above	B

B	Go to step 17

A

15.REPLACE FUEL SUPPLY PUMP

1. Replace the fuel supply pump (Toyota Fortuner RM0000014FO006X.html).
   

NEXT

16.PERFORM FUEL SUPPLY PUMP INITIALIZATION

1. Perform fuel supply pump initialization (Toyota Fortuner RM0000012X2005X.html).
   

NEXT

17.REPLACE INJECTOR ASSEMBLIES OF ALL CYLINDERS

1. Replace the injector assemblies (Toyota Fortuner RM0000014FZ006X.html).
   

   NOTICE:

   1. When replacing the injector assembly for a cylinder, always be sure to use a new injection pipe.
      
   2. Follow the procedure in the repair manual and temporarily install the injection pipes and nozzle leakage pipe, and then correctly position the injector assemblies. After that, tighten parts according to the torque specifications.
      
   3. If the installation procedure is not performed correctly, injector assemblies may become out of position, which may cause the injector assemblies to deteriorate, resulting in malfunctions.
      
   4. If an injector assembly deteriorates and malfunctions, other problems such as knocking, rough idle, etc. may occur.
      
   5. If an injector assembly becomes out of position, it is possible that the seal between the injector assembly and injection pipe may become incomplete, resulting in a fuel leak.
      

NEXT	Go to step 22

18.CHECK DATA LIST

1. Check Injection Feedback Val # in the snapshot taken in procedure 3 when the engine was idling.
   
   

   Result

   Result	Proceed to
   Injection Feedback Val #1 to #4 are 3 mm3/st or less. Injection Volume is more than 12 mm3/st.	A*
   Injection Feedback Val for at least one cylinder is more than +3 mm3/st HINT: There may be a malfunction in the corresponding cylinder.	B
   Except above	C

   HINT:

   1. *: When this case occurs, usually symptoms may be noticeable, such as difficulty starting, lack of power.
      
   2. The shift lever should be in neutral and the A/C switch and all accessory switches should be off.
      

B	Go to step 20
C	Go to step 27

A

19.REPLACE INJECTOR ASSEMBLIES OF ALL CYLINDERS

1. Replace the injector assemblies (Toyota Fortuner RM0000014FZ006X.html).
   

   NOTICE:

   1. When replacing the injector assembly for a cylinder, always be sure to use a new injection pipe.
      
   2. Follow the procedure in the repair manual and temporarily install the injection pipes and nozzle leakage pipe, and then correctly position the injector assemblies. After that, tighten parts according to the torque specifications.
      
   3. If the installation procedure is not performed correctly, injector assemblies may become out of position, which may cause the injector assemblies to deteriorate, resulting in malfunctions.
      
   4. If an injector assembly deteriorates and malfunctions, other problems such as knocking, rough idle, etc. may occur.
      
   5. If an injector assembly becomes out of position, it is possible that the seal between the injector assembly and injection pipe may become incomplete, resulting in a fuel leak.
      

NEXT	Go to step 22

20.CHECK CYLINDER COMPRESSION PRESSURE

1. Check the cylinder compression pressure (Toyota Fortuner RM000001473004X_01_0002.html).
   

   HINT:

   When compression is low, there may be cracks in the piston or the injector may be installed improperly.

NG	CHECK ENGINE TO DETERMINE CAUSE OF LOW COMPRESSION

OK

21.REPLACE INJECTOR ASSEMBLY OF MALFUNCTIONING CYLINDER

HINT:

It can be determined that the injector assembly is faulty as the corresponding cylinder is malfunctioning, but has no compression loss.

1. Replace the injector assembly (Toyota Fortuner RM0000014FZ006X.html).
   

   NOTICE:

   1. When replacing the injector assembly for a cylinder, always be sure to use a new injection pipe.
      
   2. Follow the procedure in the repair manual and temporarily install the injection pipes and nozzle leakage pipe, and then correctly position the injector assemblies. After that, tighten parts according to the torque specifications.
      
   3. If the installation procedure is not performed correctly, injector assemblies may become out of position, which may cause the injector assemblies to deteriorate, resulting in malfunctions.
      
   4. If an injector assembly deteriorates and malfunctions, other problems such as knocking, rough idle, etc. may occur.
      
   5. If an injector assembly becomes out of position, it is possible that the seal between the injector assembly and injection pipe may become incomplete, resulting in a fuel leak.
      

NEXT

22.CLEAN FUEL FILTER CASE AND REPLACE FUEL FILTER

1. Clean the fuel filter case and replace the fuel filter.
   

   HINT:

   Be sure to clean the inside of the fuel filter case as the fuel injectors may not operate properly if the fuel filter is installed with foreign matter remaining inside the fuel filter case.

NEXT

23.BLEED AIR FROM FUEL SYSTEM

1. Bleed the air from the fuel system (Toyota Fortuner RM0000014FK006X_01_0002.html).
   

NEXT

24.PERFORM ECM INITIALIZATION AND REGISTER INJECTOR COMPENSATION CODE

1. Perform the ECM initialization.
   

   
   
   

   1. Connect terminals 13 (TC) and 4 (CG) of the DLC3.
      

   2. Turn the ignition switch to ON for 50 minutes or more.
      

      NOTICE:

      1. Perform ECM initialization only when the injectors for all the cylinders have been replaced.
         
      2. It is necessary to wait for 50 minutes or more. Otherwise, ECM initialization is not completed.
         

   3. Turn the ignition switch off.
      

   4. Disconnect terminals 13 (TC) and 4 (CG).
      

2. Register the injector compensation codes (Toyota Fortuner RM0000012XK005X.html).
   

NEXT

25.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

NEXT
END

26.INSPECT INJECTOR DRIVER (POWER SOURCE)

1. Disconnect the I5 and I6 EDU connectors.
   

2. Turn the ignition switch ON.
   

3. Measure the voltage of the wire harness side connectors.
   

   Standard voltage:

   Tester Connection	Specified Condition
   I5-8 (BATTERY) - I6-1 (GND)	9 to 14 V

NG	REPAIR OR REPLACE HARNESS OR CONNECTOR

OK

27.INSPECT INJECTOR ASSEMBLY

HINT:

If there is no initial combustion during cranking, there may be air in the injector assemblies.

NEXT

28.CHECK TEMPERATURE WHEN STARTING TROUBLE OCCURS

1. Check the temperature when starting trouble occurs.
   

Result

Result	Proceed to
Difficult to start only for cold engine.	A
Difficult to start both for cold and warmed up engine.	B

B	Go to step 31

A

29.READ VALUE USING ENGINE COOLANT TEMPERATURE SENSOR (COOLANT TEMP)

1. Connect the intelligent tester to the DLC3.
   

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

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

4. Read the value displayed on the tester.
   

   OK:

   Coolant Temp is not high when the engine is cold, and not low after the engine is warmed up
   

NG	INSPECT ENGINE COOLANT TEMPERATURE SENSOR (Toyota Fortuner RM0000013Z8004X.html)

OK

30.INSPECT GLOW PLUG ASSEMBLY (RESISTANCE)

1. Inspect the glow plug (Toyota Fortuner RM0000013XN005X.html).
   

NG	REPLACE GLOW PLUG ASSEMBLY (Toyota Fortuner RM0000013XP006X.html)

OK

31.CHECK FUEL QUALITY

1. Check that only diesel fuel is being used.
   

2. Check that the fuel does not contain any impurities.
   

NEXT	Go to step 36

32.READ OUTPUT DTC (RELATED TO ENGINE)

1. Connect the intelligent tester to the DLC3.
   

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

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

4. Read the DTCs.
   
   

   Result

   Result	Proceed to
   No DTC is output	A
   DTCs related to engine are output	B

B	GO TO RELATED DTC (Toyota Fortuner RM0000012WD005X.html)

A

33.CHECK COMMUNICATION BETWEEN INTELLIGENT TESTER AND ECM

1. Connect the intelligent tester to the DLC3.
   

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

3. Check if the normal starting screen appears (check whether communication with the ECM is possible).
   

   HINT:

   Use a tester that is able to communicate with other vehicles.

   OK:

   Communication is possible (vehicle can be recognized).
   

NG	CHECK VC OUTPUT CIRCUIT (Toyota Fortuner RM000001FWD00BX.html)

OK

34.READ VALUE USING INTELLIGENT TESTER (STARTER SIGNAL)

1. Connect the intelligent tester to the DLC3.
   

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

3. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / Starter Signal.
   

4. Read the value displayed on the tester.
   
   

   OK:

   
   

   Tester Display	Condition	Specified Condition
   Starter Signal	Cranking	ON

NG	GO TO PROBLEM SYMPTOMS TABLE (Toyota Fortuner RM0000012WF005X.html)

OK

35.CHECK STARTING SYSTEM

1. Inspect the starting system.
   

   HINT:

   Be sure to inspect the following areas:

   1. Starter relay
      
   2. Starter
      
   3. Immobiliser system
      

NEXT

36.CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED

NEXT
END