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EC-534 < COMPONENT DIAGNOSIS > [HR16DE (WITHOUT EURO-OBD)] P1122 ELECTRIC THROTTLE CONTROL FUNCTION Is the inspection result normal? YES >> GO TO 10. NO >> GO TO 3. 3. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-II 1. Turn ignition switch OFF. 2. Check the voltage between ECM harness connector terminals as follows. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 4. 4. 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 6. NO >> GO TO 5. 5. DETECT MALFUNCTIONING PART Check the following. >> Repair open circuit or short to ground or short to power in harness connectors. 6. 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 9. NO >> Replace 15A fuse. 7. CHECK THROTTLE CONTROL MOTOR RELAY INPUT SIGNAL CIRCUIT-III 1. Check the continuity between ECM harness connector and IPDM E/R harness connector. (+) (–) Condition Voltage Connector Terminal Connector Terminal F10 2 F16 108 Ignition switch OFF Approx. 0V Ignition switch ON Battery voltage (+) (–) 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 IPDM E/R ECM Continuity Connector Terminal Connector Terminal E43 8 F10 2 Existed |