Throttle Control Motor For California

P2118 THROTTLE CONTROL MOTOR

Description

The throttle control motor is operated by the ECM and it opens and closes the throttle valve.

The current opening angle of the throttle valve is detected by the throttle position sensor and it provides feedback to the ECM to control the throttle control motor to make the throttle valve opening angle properly in response to driving condition.


DTC Logic


DTC DETECTION LOGIC







DTC CONFIRMATION PROCEDURE


1. PRECONDITIONING

If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at least 10 seconds before conducting the next test.
- GO TO 2.

2. PERFORM DTC CONFIRMATION PROCEDURE

1.Turn ignition switch ON and wait at least 2 seconds.
2.Start engine and let it idle for 5 seconds.
3.Check DTC.
Is DTC detected?
YES- Go to "Diagnosis Procedure".
NO- INSPECTION END


Diagnosis Procedure


1. CHECK GROUND CONNECTION

1.Turn ignition switch OFF.
2.Check ground connection E9. Refer to Ground Inspection in Circuit Inspection.
Is the inspection result normal?
YES- GO TO 2.
NO- Repair or replace ground connection.

2. CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN AND SHORT

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





4.Also check harness for short to ground and short to power.
Is the inspection result normal?
YES- GO TO 3.
NO- Repair or replace.

3. CHECK THROTTLE CONTROL MOTOR

Refer to "Component Inspection".
Is the inspection result normal?
YES- GO TO 4.
NO- GO TO 5.

4. CHECK INTERMITTENT INCIDENT

Intermittent Incident.
Is the inspection result normal?
YES- GO TO 5.
NO- Repair or replace harness or connectors.

5. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Service and Repair.
- INSPECTION END


Component Inspection


1. CHECK THROTTLE CONTROL MOTOR

1.Disconnect electric throttle control actuator harness connector.





2.Check resistance between electric throttle control actuator terminals as follows.





Is the inspection result normal?
YES- INSPECTION END
NO- GO TO 2.

2. REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR

Replace electric throttle control actuator. Service and Repair.
- INSPECTION END