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AV POWER SUPPLY AND GROUND CIRCUIT AV-91 < DTC/CIRCUIT DIAGNOSIS > [DISPLAY AUDIO] C D E F G H I J K L M B A O P 2. CHECK POWER SUPPLY CIRCUIT Check voltage between TEL adapter unit harness connector and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Check harness between TEL adapter unit and fuse. 3. CHECK GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect TEL adapter unit connector. 3. Check continuity between TEL adapter unit harness connector and ground. Is the inspection result normal? YES >> INSPECTION END NO >> Repair harness or connector. Signal name TEL adapter unit Probe Condition Standard Reference value Terminal Connector (+) ( − ) Ignition switch Battery power supply M138 1 4 OFF 9.0 - 16.0 V Battery voltage ACC power supply 2 ACC 7.0 - 16.0 V Signal name Connector Terminal Ignition switch position Continuity Ground M138 4 OFF Existed |