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EC-356 < COMPONENT DIAGNOSIS > [QR25DE] P2100, P2103 THROTTLE CONTROL MOTOR RELAY P2100, P2103 THROTTLE CONTROL MOTOR RELAY Description INFOID:0000000004211600 Power supply for the throttle control motor is provided to the ECM via throttle control motor relay. The throttle control motor relay is ON/OFF controlled by the ECM. When the ignition switch is turned ON, the ECM sends an ON signal to throttle control motor relay and battery voltage is provided to the ECM. When the ignition switch is turned OFF, the ECM sends an OFF signal to throttle control motor relay and battery voltage is not provided to the ECM. DTC Logic INFOID:0000000004211601 DTC DETECTION LOGIC DTC CONFIRMATION PROCEDURE 1. PRECONDITIONING If DTC Confirmation Procedure has been previously conducted, always perform the following before conduct- ing 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 8V. P2100 >> GO TO 2. P2103 >> GO TO 3. 2. PERFORM DTC CONFIRMATION PROCEDURE FOR DTC P2100 1. Turn ignition switch ON and wait at least 2 seconds. 2. Turn ignition switch ON (READY). 3. Depress the accelerator pedal to start engine, then keep engine running for at least 5 seconds. 4. Check DTC. 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. YES >> Go to NO >> INSPECTION END Diagnosis Procedure INFOID:0000000004211602 1. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT 1. Turn ignition switch OFF. DTC No. Trouble diagnosis name DTC detecting condition Possible cause P2100 Throttle control motor ECM detects a voltage of power source for • Harness or connectors (Throttle control motor relay circuit is • Throttle control motor relay P2103 Throttle control motor ECM detect the throttle control motor relay is • Harness or connectors (Throttle control motor relay circuit is • Throttle control motor relay |