P1238

P1238, P2119 ELECTRIC THROTTLE CONTROL ACTUATOR





Description
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc.
The throttle control motor is operated by the ECM and it opens and closes the throttle valve.
The throttle position sensor detects the throttle valve position, and sends the voltage signal to the ECM. The
ECM judges the current opening angle of the throttle valve from this signal and opens/closes the throttle valve in response to driving conditions via the throttle control motor.




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.PRECONDITIONING
If DTC Confirmation Procedure has been previously conducted, always perform the following procedure before conducting the next test.
1. Turn ignition switch OFF and wait at least 10 seconds.
2. Turn ignition switch ON.
3. Turn ignition switch OFF and wait at least 10 seconds.
TESTING CONDITION:
Before performing the following procedure, confirm that battery voltage is more than 8 V at idle.
- GO TO 2.
2.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION A AND B
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever position to D and wait at least 3 seconds.
3. Shift selector lever position to P.
4. Turn ignition switch OFF and wait at least 10 seconds.
5. Turn ignition switch ON and wait at least 1 second.
6. Shift selector lever position to D and wait at least 3 seconds.
7. Shift selector lever position to P.
8. Turn ignition switch OFF, wait at least 10 seconds, and then turn ON.
9. Check DTC.
Is DTC detected?
YES - Go to P1238.
NO - GO TO 3.
3.PERFORM DTC CONFIRMATION PROCEDURE FOR MALFUNCTION C
1. Turn ignition switch ON and wait at least 1 second.
2. Shift selector lever position to D and wait at least 3 seconds.
3. Shift selector lever position to P.
4. Start engine and let it idle for 3 seconds.
5. Check DTC.
Is DTC detected?
YES - Go to P1238.
NO - INSPECTION END




Diagnosis Procedure
1.CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Remove the intake air duct.





3. Check that no foreign matter is caught between the throttle valve
(1) and the housing.
Is the inspection result normal?
YES - GO TO 2.
NO - Remove the foreign matter and clean the electric throttle control actuator inside.
2.REPLACE ELECTRIC THROTTLE CONTROL ACTUATOR
1. Replace malfunctioning electric throttle control actuator.
2. Perform P1238.
- INSPECTION END




Special Repair Requirement
1.PERFORM THROTTLE VALVE CLOSED POSITION LEARNING
Special Repair Requirement
- GO TO 2.
2.PERFORM IDLE AIR VOLUME LEARNING
Special Repair Requirement
- END