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AV RGB SYNCHRONIZING SIGNAL CIRCUIT AV-375 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P RGB SYNCHRONIZING SIGNAL CIRCUIT Description INFOID:0000000009652182 Transmit the RGB synchronizing signal to the front display unit so as to synchronize the RGB image displayed Diagnosis Procedure INFOID:0000000009652183 1. CHECK CONTINUITY RGB SYNCHRONIZING SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect front display unit connector and AV control unit connector. 3. Check continuity between front display unit harness connector and AV control unit harness connector. 4. Check continuity between front display unit harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK RGB SYNCHRONIZING SIGNAL 1. Connect front display unit connector and AV control unit connector. 2. Turn ignition switch ON. 3. Check signal between front display unit harness connector and ground. Is the inspection result normal? YES >> Replace front display unit. Refer to AV-405, "Removal and Installation" . NO >> Replace AV control unit. Refer to AV-404, "Removal and Installation" . Front display unit AV control unit Continuity Connector Terminal Connector Terminal M156 19 M172 42 Existed Front display unit Ground Continuity Connector Terminal M156 19 Not existed Probe Standard Reference value (+) (-) Front display unit Connector Terminal Connector Terminal M156 19 M156 1 Waveform of 0.8 V - 5.5 SKIB3603E |