|
|
AV COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DIS- PLAY UNIT) AV-379 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITHOUT NAVIGATION] C D E F G H I J K L M B A O P COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT Description INFOID:0000000009652190 The AV control unit outputs image signal (DVD, auxiliary input, and camera) to the front display unit and rear Diagnosis Procedure INFOID:0000000009652191 1. CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT (AV CONTROL UNIT TO FRONT DISPLAY UNIT) 1. Turn ignition switch OFF. 2. Disconnect AV control unit connector and front display unit connector. 3. Check continuity between AV control unit harness connector and front display unit harness connector. 4. Check continuity between AV control unit harness connector and ground. Is inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK COMPOSITE IMAGE SIGNAL (AV CONTROL UNIT TO FRONT DISPLAY UNIT) 1. Connect AV control unit connector and front display unit connector. 2. Turn ignition switch ON. 3. Check signal between front display unit harness connector. Is 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" . AV control unit Front display unit Continuity Connector Terminal Connector Terminal M172 46 M156 4 Existed 47 15 AV control unit Ground Continuity Connector Terminal M172 46 Not existed 47 Probe Condition Standard Reference value (+) ( − ) Front display unit Connector Terminal Connector Terminal M156 15 M156 4 When DVD, Waveform according to SKIB2251J |