Diagnosis Procedure

If DTC P2587 is displayed with another DTC P0643, first perform the trouble diagnosis for DTC P0643.

Is applicable DTC detected?

YES

Perform diagnosis of applicable. Refer to DTC Description .

NO

GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect electric wastegate control actuator (bank 2) harness connector.
3. Turn ignition switch ON.
4. Check the voltage between electric wastegate control actuator (bank 2) harness connector and ground.

   +		-	Voltage (Approx.)
   Electric wastegate control actuator (bank 2)
   Connector	Terminal
   F138	3	Ground	5 V

Is the inspection result normal?

YES

GO TO 3.

NO

Perform the trouble diagnosis for power supply circuit.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.

   +		-		Continuity
   Electric wastegate control actuator (bank 2)		ECM
   Connector	Terminal	Connector	Terminal
   F138	2	F143	66	Existed

4. Also check harness for short to power.

Is the inspection result normal?

YES

GO TO 4.

NO

Repair or replace error-detected parts.

1. Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.

   +		-		Continuity
   Electric wastegate control actuator (bank 2)		ECM
   Connector	Terminal	Connector	Terminal
   F138	1	F143	61	Existed

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

Is the inspection result normal?

YES

GO TO 5.

NO

Repair or replace error-detected parts.

Check the electric wastegate control actuator (bank 2). Refer to Component Inspection [Electric Wastegate Control Actuator (Bank 2)] .

Is the inspection result normal?

YES

INSPECTION END

NO

Replace Turbocharger Assembly (do not replace electric wastegate control actuator (bank 2)only). Refer to Exploded View .