DTC Diagnosis Procedure

With CONSULT

1. Start the engine.
2. On CONSULT screen, select "ENGINE">>"Data Monitor">>"TC/SC SPEED B1".
3. Check that the values displayed on "TC/SC SPEED B2" is 14, 000 - 26, 000 rpm when maintaining 3, 000 rpm with no load condition.

Is the inspection result normal?

YES

INSPECTION END

NO

GO TO 2.

Check that the turbocharger speed sensor (bank 2) is installed correctly with no float and disconnection.

Is the inspection result normal?

YES

GO TO 3.

NO

Install the sensor correctly.

Check the turbocharger speed sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

GO TO 4.

NO

Replace turbocharger speed sensor (bank 2). Refer to TURBOCHARGER : Exploded View .

1. Turn ignition switch OFF.
2. Disconnect turbocharger speed sensor (bank 2) harness connector.
3. Turn ignition switch ON.
4. Check the voltage between turbocharger speed sensor (bank 2) harness connector and ground.

   +		-	Voltage (Approx.)
   Turbocharger speed sensor (bank 2)
   Connector	Terminal
   F140	1	Ground	5 V

Is the inspection result normal?

YES

GO TO 7.

NO

GO TO 5.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between turbocharger speed sensor (bank 2) harness connector and ECM harness connector.

   Turbocharger speed sensor (bank 2)		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   F140	1	F142	108	Existed

4. Also check harness for short to power and short to ground.

Is the inspection result normal?

YES

GO TO 6.

NO

Repair or replace error-detected parts.

Refer to Diagnosis Procedure ..

Is the inspection result normal?

YES

Perform the trouble diagnosis for ECM power supply circuit. Refer to Diagnosis Procedure .

NO

Repair or replace error-detected parts.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between turbocharger speed sensor (bank 2) harness connector and ECM harness connector.

   Turbocharger speed sensor (bank 2)		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   F140	3	F142	132	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 8.

NO

Repair or replace error-detected parts.

1. Check the continuity between turbocharger speed sensor (bank 2) harness connector and ECM harness connector.

   Turbocharger speed sensor (bank 2)		ECM		Continuity
   Connector	Terminal	Connector	Terminal
   F140	2	F142	120	Existed

2. Also check harness for short to power and short to ground.

Is the inspection result normal?

YES

GO TO 9.

NO

Repair or replace error-detected parts.

1. Disconnect ECM harness connectors.
2. Check the continuity between ECM harness connector and ground.

   ECM		--	Continuity
   Connector	Terminal
   F143	2	Ground	Existed
   	7
   F142	87
   	88
   	95
   E152	199
   	201
   	204

3. Also check harness for short to power.

Is the inspection result normal?

YES

INSPECTION END

NO

Repair or replace error-detected parts.