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EC-1006 [YD (WITH EURO-OBD)] MAIN POWER SUPPLY AND GROUND CIRCUIT 5. CHECK ECM GROUND CIRCUIT FOR OPEN AND SHORT 1. Disconnect ECM harness connector. 2. Check harness continuity between ECM terminals 1, 2, 3, 114 and body ground. 3. Also check harness for short to power. OK or NG OK >> GO TO 7. NG >> GO TO 6. 6. DETECT MALFUNCTIONING PART Check the following. ● Harness connectors M71, F45 ● Harness for open or short between ECM and body ground >> Repair open circuit or short to power in harness or connectors. 7. CHECK ECM POWER SUPPLY CIRCUIT-II 1. Reconnect ECM harness connector. 2. Turn ignition switch ON and then OFF. 3. Check voltage between ECM terminals 119, 120 and ground OK or NG OK >> GO TO 13. NG (Battery voltage does not exist)>>GO TO 8. 10. Continuity should exist. Voltage: After turning ignition switch OFF, battery MBIB0611E |