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AV-254 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT VERTICAL SYNCHRONIZING (VP) SIGNAL CIRCUIT Description INFOID:0000000009721768 In composite image (AUX and camera image), transmit the vertical synchronizing (VP) signal and horizontal Diagnosis Procedure INFOID:0000000009721769 1. CHECK CONTINUITY VERTICAL SYNCHRONIZING (VP) 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 the inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK VERTICAL SYNCHRONIZING (VP) SIGNAL 1. Connect display unit connector and AV control unit connector. 2. Turn ignition switch ON. 3. Check signal between display unit harness connector and ground. Is the inspection result normal? YES >> Replace AV control unit. Refer to NO >> Replace display unit. Refer to . Display unit AV control unit Continuity Connector Terminal Connector Terminal M194 20 M172 50 Existed Display unit Ground Continuity Connector Terminal M194 20 Not existed (+) ( − ) Reference value Display unit Connector Terminal M194 20 Ground SKIB3598E |