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AV POWER SUPPLY AND GROUND CIRCUIT AV-51 < DTC/CIRCUIT DIAGNOSIS > [BASE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P DTC/CIRCUIT DIAGNOSIS POWER SUPPLY AND GROUND CIRCUIT AV CONTROL UNIT AV CONTROL UNIT : Diagnosis Procedure INFOID:0000000009163269 1. CHECK FUSE Check for blown fuses. Is the inspection result normal? YES >> GO TO 2. NO >> Be sure to eliminate cause of malfunction before installing new fuse. 2. CHECK POWER SUPPLY CIRCUIT Check voltage between AV control unit harness connectors and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Check harness between AV control unit and fuse. 3. CHECK GROUND CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect AV control unit connectors. 3. Check continuity between AV control unit harness connectors and ground. Is the inspection result normal? YES >> INSPECTION END NO >> Repair harness or connector. DISPLAY UNIT DISPLAY UNIT : Diagnosis Procedure INFOID:0000000009163270 1. CHECK FUSE Check for blown fuses. Is the inspection result normal? YES >> GO TO 2. NO >> Be sure to eliminate cause of malfunction before installing new fuse. 2. CHECK POWER SUPPLY CIRCUIT Check voltage between display unit harness connector and ground. Power source Fuse No. Battery 34 Ignition switch ACC or ON 19 Signal name Connector No. Terminal No. Ignition switch position Value (Approx.) Battery power supply M201 19 OFF Battery voltage ACC power supply 7 ACC Signal name Connector No. Terminal No. Ignition switch position Continuity Ground M201 20 OFF Existed Power source Fuse No. Battery 34 Ignition switch ACC or ON 19 |