VR30DDTT engine
- CHECK DTC PRIORITY
If DTC P2135 is displayed with DTC P0643, first perform the confirmation procedure (trouble diagnosis) for DTC P0643.
Is applicable DTC detected?
YES
Perform diagnosis of applicable DTC. Refer to DTC Description .
NO
GO TO 2.
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-I
- Disconnect electric throttle control actuator harness connector.
- Turn ignition switch ON.
- Check the voltage between electric throttle control actuator harness connector and ground.
+
-
Voltage
(Approx.)
Electric throttle control actuator
Bank
Connector
Terminal
1
F118
5
Ground
5 V
Is the inspection result normal?
YES
GO TO 4.
NO
GO TO 3.
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
+
-
Continuity
Electric throttle control actuator
ECM
Bank
Connector
Terminal
Connector
Terminal
1
F118
5
F142
129
Existed
- Also check harness for short to ground and short to power.
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.
- CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT FOR OPEN AND SHORT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
+
-
Continuity
Electric throttle control actuator
ECM
Bank
Connector
Terminal
Connector
Terminal
1
F118
4
F142
100
Existed
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 5.
NO
Repair or replace error-detected parts.
- CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT
- Check the continuity between ECM harness connector and ground.
+
-
Continuity
ECM
Connector
Terminal
F143
3
Ground
Existed
F142
87
88
E152
199
201
204
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- Check the continuity between ECM harness connector and ground.
- CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
+
-
Continuity
Electric throttle control actuator
ECM
Bank
Connector
Terminal
Connector
Terminal
1
F118
3
F142
114
Existed
6
103
- Also check harness for short to ground and short to power.
Is the inspection result normal?
YES
GO TO 7.
NO
Repair or replace error-detected parts.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
- CHECK THROTTLE POSITION SENSOR
Refer to Component Inspection .
Is the inspection result normal?
YES
INSPECTION END
NO
Replace malfunctioning electric throttle control actuator. Refer to INTAKE MANIFOLD COLLECTOR : Exploded View .