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EC-538 < COMPONENT DIAGNOSIS > [HR16DE (WITHOUT EURO-OBD)] P1124, P1126 THROTTLE CONTROL MOTOR RELAY Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 2. 2. CHECK THROTTLE CONTROL MOTOR RELAY POWER SUPPLY CIRCUIT 1. Disconnect ECM harness connector. 2. Disconnect IPDM E/R harness connector. 3. Check the continuity between ECM harness connector and IPDM E/R harness connector. 4. Also check harness for short to ground and short to power. Is the inspection result normal? YES >> GO TO 4. NO >> GO TO 3. 3. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness connectors. 4. CHECK FUSE 1. Disconnect 15A fuse (No. 52) from IPDM E/R. 2. Check 15A fuse for blown. Is the inspection result normal? YES >> GO TO 8. NO >> Replace 15A fuse. 5. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-I 1. Check the voltage between ECM harness connector terminals as follows. Is the inspection result normal? YES >> GO TO 8. NO >> GO TO 6. 6. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II 1. Check the continuity between ECM harness connector and IPDM E/R harness connector. 2. Also check harness for short to ground and short to power. (+) (–) Voltage Connector Terminal Connector Terminal F10 15 E16 108 Battery voltage IPDM E/R ECM Continuity Connector Terminal Connector Terminal E46 46 F10 15 Existed (+) (–) Condition Voltage Connector Terminal Connector Terminal F10 2 E16 108 Ignition switch OFF Approx. 0V Ignition switch ON Battery voltage IPDM E/R ECM Continuity Connector Terminal Connector Terminal E43 8 F10 2 Existed |