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AV U1250 CAMERA CONTROL UNIT AV-79 < COMPONENT DIAGNOSIS > [BASE AUDIO AND DISPLAY SYSTEM] C D E F G H I J K L M B A O P U1250 CAMERA CONTROL UNIT Description INFOID:0000000003882728 DTC Logic INFOID:0000000003882729 Diagnosis Procedure INFOID:0000000003901201 1. CHECK CONTINUITY RECOGNITION SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect AV control unit connector and camera control unit connector. 3. Check continuity between AV control unit harness connector and camera 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 AV CONTROL UNIT VOLTAGE 1. Connect AV control unit connector and camera control unit connector. 2. Turn ignition switch ON. 3. Check signal between AV control unit harness connector terminal and ground using an oscilloscope. Is inspection result normal? YES >> Replace AV control unit. Part name Description CAMERA CONTROL UNIT • Camera image signal is input from rear view camera. Camera image signal output to AV control unit. • Power supply is transmitted to rear view camera. nection recognition signal. • Camera control unit is connected via AV communication. DTC Display contents of CONSULT-III DTC Detection Condition Possible causes U1250 CAMERA CONT. CONN Malfunction is detected in camera connection recogni- Camera connection recognition sig- AV control unit Camera control unit Continuity Connector Terminals Connector Terminals M130 68 B251 14 Existed AV control unit Ground Continuity Connector Terminals M130 68 Not existed (+) ( − ) Condition Voltage (Approx.) AV control unit Connector Terminal M130 68 Ground Connected camera 0 V Disconnect camera 5 V |