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AV POWER SUPPLY AND GROUND CIRCUIT AV-13 < DTC/CIRCUIT DIAGNOSIS > [AUDIO SYSTEM] C D E F G H I J K L M B A O P DTC/CIRCUIT DIAGNOSIS POWER SUPPLY AND GROUND CIRCUIT AUDIO UNIT AUDIO UNIT : Diagnosis Procedure INFOID:0000000005921602 1. CHECK FUSE Check for blown fuses. Is 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 audio unit harness connectors and ground. Is inspection result normal? YES >> INSPECTION END NO >> Check harness between audio unit and fuse. Power source Fuse No. Battery 37 Ignition switch ACC or ON 19 Signal name (+) (-) Ignition switch position Voltage (Approx.) Audio unit Connector Terminal Battery power supply M46 19 Ground OFF Battery voltage ACC power supply 7 ACC |