P2118

P2118 THROTTLE CONTROL MOTOR





Component 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.




On Board Diagnosis Logic
This self-diagnosis has the one trip detection logic.

On Board Diagnosis Logic:

FAIL-SAFE MODE
When the malfunction is detected, the ECM enters fail-safe mode and the MIL lights up.









DTC Confirmation Procedure
1. If DTC Confirmation Procedure has been previously conducted, always perform the following before conducting the next step.
a. Turn ignition switch OFF and wait at least 10 seconds.
b. Turn ignition switch ON.
c. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON and wait at least 2 seconds.
3. Start engine and let it idle for 5 seconds.
4. Check DTC.
5. If DTC is detected, go to P2118.




Diagnosis Procedure
1.CHECK GROUND CONNECTIONS
1. Turn ignition switch OFF.
2. Loosen and retighten three ground screws on the body. Refer to Power Supply and Ground Circuit.





OK or NG
OK - GO TO 2.
NG - Repair or replace ground connections.
2.CHECK THROTTLE CONTROL MOTOR OUTPUT SIGNAL CIRCUIT FOR OPEN OR SHORT





1. Disconnect electric throttle control actuator (1) harness connector.
- Illustration shows the view with intake air duct removed.
2. Disconnect ECM harness connector.
3. Check harness continuity between the following terminals. Refer to Wiring Diagram.





4. Also check harness for short to ground and short to power.
OK or NG
OK - GO TO 3.
NG - Repair or replace.
3.CHECK THROTTLE CONTROL MOTOR
Refer to P2118.
OK or NG
OK - GO TO 4.
NG - GO TO 5.
4.CHECK INTERMITTENT INCIDENT
Refer to How to Check Terminal and Intermittent Incident.
OK or NG
OK - GO TO 5.
NG - Repair or replace harness or connectors.
5.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace the electric throttle control actuator.
2. Perform Throttle Valve Closed Position Learning.
3. Perform Testing and Inspection.
>> INSPECTION END




Component Inspection

THROTTLE CONTROL MOTOR
1. Disconnect electric throttle control actuator harness connector.





2. Check resistance between terminals 5 and 6.

Resistance: Approximately 1 - 15 Ohms [at 25 °C (77°F)]

3. If NG, replace electric throttle control actuator and go to next step.
4. Perform Throttle Valve Closed Position Learning.
5. Perform Testing and Inspection.