Diagnosis Procedure
- CHECK GROUND CONNECTION
- Turn ignition switch OFF.
- Check ground connection E21. Refer to Ground Inspection in "CIRCUIT INSPECTION ".
Is the inspection result normal?
YES: GO TO 2.
NO: Repair or replace ground connection.
- 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.TERMINALS VOLTAGE REFERENCE
Electric throttle control actuator Ground Voltage Connector Terminal F29 1 Ground Approx. 5V
Is the inspection result normal?
YES: GO TO 4.
NO: GO TO 3.
- CHECK THROTTLE POSITION SENSOR POWER SUPPLY CIRCUIT-II
- Turn ignition switch OFF.
- Disconnect ECM harness connector.
- Check the continuity between electric throttle control actuator harness connector and ground.TERMINALS CONTINUITY REFERENCE
Electric throttle control actuator ECM Continuity Connector Terminal Connector Terminal F29 1 F8 47 Existed
Is the inspection result normal?
YES: GO TO 4.
NO: Repair open circuit.
- 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 ground.TERMINALS CONTINUITY REFERENCE
Electric throttle control actuator ECM Continuity Connector Terminal Connector Terminal F57 4 F8 36 Existed - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 5.
NO: Repair open circuit or short to ground or short to power in harness or connectors.
- CHECK THROTTLE POSITION SENSOR INPUT SIGNAL CIRCUIT FOR OPEN AND SHORT
- Check the continuity between electric throttle control actuator harness connector and ground.TERMINALS CONTINUITY REFERENCE
Electric throttle control actuator ECM Continuity Connector Terminal Connector Terminal F29 2 F8 37 Existed 3 38 - Also check harness for short to ground and short to power.
Is the inspection result normal?
YES: GO TO 6.
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 ground.
- CHECK THROTTLE POSITION SENSOR
Refer to "COMPONENT INSPECTION ".
Is the inspection result normal?
YES: GO TO 8.
NO: GO TO 7.
- REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
- Replace electric throttle control actuator.
- Go to
"SPECIAL REPAIR REQUIREMENT ".
INSPECTION END
- CHECK INTERMITTENT INCIDENT
Refer to "INTERMITTENT INCIDENT ".
INSPECTION END