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EC-374 < COMPONENT DIAGNOSIS > [VQ35HR] P1290, P2100, P2103 THROTTLE CONTROL MOTOR RELAY P1290, P2100, P2103 THROTTLE CONTROL MOTOR RELAY Description INFOID:0000000000956771 Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle DTC Logic INFOID:0000000000956772 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always turn ignition switch OFF and wait at Which DTC is detected? P1290, P2100>>GO TO 2. 2. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P1290 AND P2100 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 3. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2103 1. Turn ignition switch ON and wait at least 1 second. 2. Check DTC. Is DTC detected? YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000000956773 1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect ECM harness connector. 3. Disconnect IPDM E/R harness connector E7. 4. Check the continuity between IPDM E/R harness connector and ECM harness connector. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P1290 Throttle control motor relay ECM detects a voltage of power source for • Harness or connectors (Throttle control motor relay circuit is • Throttle control motor relay P2100 Throttle control motor relay P2103 Throttle control motor relay ECM detect the throttle control motor relay is • Harness or connectors (Throttle control motor relay circuit is • Throttle control motor relay |