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POWER SUPPLY AND GROUND CIRCUIT EC-573 < DTC/CIRCUIT DIAGNOSIS > [QR25DE] C D E F G H I J K L M A EC N P O POWER SUPPLY AND GROUND CIRCUIT Diagnosis Procedure INFOID:0000000010986290 1. CHECK FUSE 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 1. Turn ignition switch OFF. 2. Check ground connection F6 or F9. Refer to . Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace ground connection. 3. CHECK ECM GROUND CIRCUIT 1. Disconnect ECM harness connectors. 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 POWER SUPPLY (MAIN)-1 1. Reconnect ECM harness connector. 2. Turn ignition switch ON. 3. Check the voltage between ECM harness connector terminals. Is the inspection result normal? YES >> GO TO 5. NO >> GO TO 6. 5. CHECK ECM POWER SUPPLY (MAIN)--2 1. Turn ignition switch OFF and wait at least 10 seconds. 2. Check the voltage between ECM harness connector terminals as per the following. Location Fuse No. Capacity IPDM E/R #95 5 A #82 15 A + − Continuity ECM Connector Terminal F68 52 Ground Existed F85 16 E60 123 128 ECM Voltage Connector + − Terminal E60 121 128 Battery voltage |