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AV RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT) AV-243 < COMPONENT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P RGB (B: BLUE) SIGNAL CIRCUIT (AV CONTROL UNIT TO DISPLAY UNIT) Description INFOID:0000000003765707 Transmit the image displayed with AV control unit or NAVI control unit with RGB signal to the display unit. Diagnosis Procedure INFOID:0000000003901187 1. CHECK CONTINUITY RGB (B: BLUE) SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect display unit connector and AV control unit connector. 3. Check continuity between display unit harness connector and AV control unit harness connector. 4. Check continuity between display unit harness connector and ground. Is inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK RGB (B: BLUE) SIGNAL 1. Connect display unit connector and AV control unit connector. 2. Turn ignition switch ON. 3. Check signal between display unit harness connector terminal and ground using an oscilloscope. Is inspection result normal? YES >> Replace display unit. NO >> Replace AV control unit. Display unit AV control unit Continuity Connector Terminal Connector Terminal M49 18 M129 38 Existed Display unit Ground Continuity Connector Terminal M49 18 Not existed (+) ( − ) Condition Reference value Display unit Connector Terminal M49 18 Ground Start Confirmation / Adjustment SKIB2237J |