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EC-414 < DTC/CIRCUIT DIAGNOSIS > [VQ35DE] P2118 THROTTLE CONTROL MOTOR P2118 THROTTLE CONTROL MOTOR Description INFOID:0000000009720163 The throttle control motor is operated by the ECM and it opens and closes the throttle valve. DTC Logic INFOID:0000000009720164 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- 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. >> 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 NO >> INSPECTION END Diagnosis Procedure INFOID:0000000009720165 1. CHECK GROUND CONNECTIONS 1. Turn ignition switch OFF. 2. Check ground connection E38. Refer to Ground Inspection in . Is the inspection result normal? YES >> GO TO 2. NO >> Repair or replace ground connections. 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 con- DTC No. Trouble diagnosis name DTC detecting condition Possible cause P2118 Throttle control motor ECM detects short in both circuits between • Harness or connectors (Throttle control motor circuit is shorted.) • Electric throttle control actuator (Throttle control motor) |