DTC Diagnosis Procedure
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY-1
- Turn ignition switch OFF.
- Disconnect electric throttle control actuator harness connector.
- Turn ignition switch ON.
- Check the voltage between electric throttle control actuator harness connector terminals.
Electric throttle control actuator
Voltage
(Approx.)
Connector
+
-
Terminal
F50
2
4
5 V
Is the inspection result normal?
YES
GO TO 7.
NO
GO TO 2.
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY-2
Check the voltage between electric throttle control actuator harness connector and ground.
+
-
Voltage
(Approx.)
Electric throttle control actuator
Connector
Terminal
F50
2
Ground
5 V
Is the inspection result normal?
YES
GO TO 5.
NO
GO TO 3.
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ground.
+
-
Continuity
Electric throttle control actuator
ECM
Connector
Terminal
Connector
Terminal
F50
2
F77
98
Existed
- Also check harness for short to ground.
Is the inspection result normal?
YES
GO TO 4.
NO
Repair or replace error-detected parts.
- CHECK SENSOR POWER SUPPLY 2 CIRCUIT
Check sensor power supply 2 circuit. Refer to DTC Diagnosis Procedure .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace error-detected parts.
- CHECK THROTTLE POSITION SENSOR GROUND CIRCUIT
- 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
Connector
Terminal
Connector
Terminal
F50
4
F77
75
Existed
- Also check harness for short to power.
Is the inspection result normal?
YES
GO TO 6.
NO
Repair or replace error-detected parts.
- CHECK ECM GROUND CIRCUIT
Check the continuity between ECM harness connector and the ground.
+
-
Continuity
ECM
Connector
Terminal
E16
147
Ground
Existed
149
152
F54
10
55
F77
110
Is inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Repair or replace error-detected parts.
- CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
+
-
Continuity
Electric throttle control actuator
ECM
Connector
Terminal
Connector
Terminal
F50
1
F77
71
Existed
3
72
- Also check harness for short to ground and to power.
Is the inspection result normal?
YES
GO TO 8.
NO
Repair open circuit or short to ground or short to power in harness or connectors.
- Check the continuity between electric throttle control actuator harness connector and ECM harness connector.
- CHECK THROTTLE POSITION SENSOR
Check the throttle position sensor. Refer to Component Inspection .
Is the inspection result normal?
YES
Check intermittent incident. Refer to Intermittent Incident .
NO
Replace electric throttle control actuator. Refer to Removal and Installation .