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ECK-156 < DTC/CIRCUIT DIAGNOSIS > [K9K] POWER SUPPLY AND GROUND CIRCUIT DTC/CIRCUIT DIAGNOSIS POWER SUPPLY AND GROUND CIRCUIT ECM ECM : Diagnosis Procedure INFOID:0000000010289711 1. CHECK FUSE 1. Turn ignition switch OFF. 2. Check that the following fuse is not fusing. Is the fuse fusing? YES >> Replace the fuse after repairing the applicable circuit. NO >> GO TO 2. 2. CHECK GROUND CONNECTION Check ground connection E5. Refer to Ground Inspection in Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace ground connection. 3. CHECK ECM GROUND CIRCUIT FOR OPEN 1. Disconnect ECM harness connector. 2. Check the continuity between ECM harness connector and ground. Is the inspection result normal? YES >> GO TO 4. NO >> Repair or replace error-detected parts. 4. CHECK ECM RELAY CONTROL SIGNAL 1. Reconnect ECM harness connector. 2. Check the voltage between ECM harness connector and ground as per the following condition. Is the inspection result normal? YES >> GO TO 6. NO >> GO TO 5. Fuse No. Capacity #52 10 A #65 5 A + − Continuity ECM Connector Terminal E59 25 Ground Existed 26 29 32 + − Condition Voltage ECM Connector Terminal F80 36 Ground Ignition switch: OFF 0 V Ignition switch: ON Battery voltage |