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POWER SUPPLY AND GROUND CIRCUIT EC-737 < DTC/CIRCUIT DIAGNOSIS > [VK50VE] C D E F G H I J K L M A EC N P O >> Repair open circuit, short to ground or short to power in harness or connectors. 6. CHECK ECM POWER SUPPLY CIRCUIT-II 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Check the voltage between ECM harness connector terminals as per the following. Is the inspection result normal? YES >> GO TO 7. NO >> GO TO 9. 7. CHECK ECM POWER SUPPLY CIRCUIT-III 1. Turn ignition switch ON. 2. Check the voltage between IPDM E/R harness connector and ground. Is the inspection result normal? YES >> GO TO 8. NO >> Replace IPDM E/R. 8. CHECK INTERMITTENT INCIDENT GI-36, "Intermittent Incident" . >> INSPECTION END 9. CHECK ECM POWER SUPPLY CIRCUIT-IV 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Check the voltage between ECM harness connector terminals as per the following. Is the inspection result normal? YES >> GO TO 13. NO >> GO TO 10. 10. CHECK ECM POWER SUPPLY CIRCUIT-V 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. ECM Voltage Connector + – Terminal Terminal M160 121 128 After turning ignition switch OFF, battery IPDM E/R Ground Voltage Connector Terminal E7 49 Ground Battery voltage ECM Voltage + – Connector Terminal Connector Terminal F110 15 M160 128 Battery voltage ECM IPDM E/R Continuity Connector Terminal Connector Terminal F110 15 E7 69 Existed |