PR25DD engine

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

   +		-	Voltage (Approx.)
   Electric throttle control actuator
   Connector	Terminal
   F57	2	Ground	5 V

Is the inspection result normal?

YES

GO TO 3.

NO

GO TO 2.

1. Turn ignition switch OFF.
2. Disconnect ECM harness connector.
3. Check the continuity between electric throttle control actuator harness connector and ground.

   +		-		Continuity
   Electric throttle control actuator		ECM
   Connector	Terminal	Connector	Terminal
   F57	2	F90	95	Existed

4. Also check harness for short to ground.

Is the inspection result normal?

YES

Perform the trouble diagnosis for power supply circuit.

NO

Repair or replace error-detected parts.

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

   +		-		Continuity
   Electric throttle control actuator		ECM
   Connector	Terminal	Connector	Terminal
   F57	4	F90	90	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 throttle control actuator harness connector and ECM harness connector.

   +		-		Continuity
   Electric throttle control actuator		ECM
   Connector	Terminal	Connector	Terminal
   F57	1	F90	85	Existed
   	3		89

2. Also check harness for short to ground and 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 the throttle position sensor. Refer to Component Inspection .

Is the inspection result normal?

YES

Check intermittent incident. Refer to Inspection .

NO

Replace electric throttle control actuator. Refer to Removal & Installation .