DTC Diagnosis Procedure
- CHECK WASTEGATE CONTROL VALVE POSITION SENSOR POWER SUPPLY
- Turn ignition switch OFF.
- Disconnect electric wastegate control actuator (bank 2) harness connector.
- Turn ignition switch ON.
- 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 4.
NO
GO TO 2.
- CHECK WASTEGATE CONTROL VALVE POSITION SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.
Electric wastegate control actuator (bank 2)
ECM
Continuity
Connector
Terminal
Connector
Terminal
F138
3
F142
136
Existed
- Also check harness for short to power and short to ground.
Is the inspection result normal?
YES
GO TO 3.
NO
Repair or replace error-detected parts.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Refer to Diagnosis Procedure .
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK WASTEGATE CONTROL VALVE POSITION SENSOR GROUND CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.
Electric wastegate control actuator (bank 2)
ECM
Continuity
Connector
Terminal
Connector
Terminal
F138
2
F142
125
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK WASTEGATE CONTROL VALVE POSITION SENSOR INPUT SIGNAL CIRCUIT
- Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.
Electric wastegate control actuator (bank 2)
ECM
Continuity
Connector
Terminal
Connector
Terminal
F138
1
F142
120
Existed
- 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.
- Check the continuity between electric wastegate control actuator (bank 2) harness connector and ECM harness connector.
- CHECK ELECTRIC WASTEGATE CONTROL ACTUATOR (BANK 2)
Check the electric wastegate control actuator (bank 2). Refer to Component Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace turbocharger assembly [do not replace electric wastegate control actuator (bank 2) only]. Refer to TURBOCHARGER : Removal & Installation .