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AV COMPOSITE IMAGE SIGNAL CIRCUIT (VIDEO DISTRIBUTOR TO AV CONTROL UNIT) AV-123 < 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 (VIDEO DISTRIBUTOR TO AV Description INFOID:0000000005528532 Video distributor receives the image signal from the DVD player and auxiliary input jack and then transmits it to Diagnosis Procedure INFOID:0000000005528533 1. CHECK CONTINUITY COMPOSITE IMAGE SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect video distributor connector and AV control unit connector. 3. Check continuity between video distributor harness connector and AV control unit harness connector. 4. Check continuity between AV control unit harness connector and ground. Is the inspection result normal? YES >> GO TO 2. NO >> Repair harness or connector. 2. CHECK COMPOSITE IMAGE SIGNAL 1. Connect video distributor connector and AV control unit connector. 2. Turn ignition switch ON. 3. Check signal between AV control unit harness connector using an oscilloscope. Is the inspection result normal? YES >> Replace AV control unit. NO >> Replace video distributor. Video distributor AV control unit Continuity Connector Terminals Connector Terminals M258 8 M130 66 Existed 6 74 AV control unit Ground Continuity Connector Terminal M130 66 Not existed (+) ( − ) Condition Signal AV control unit AV control unit Connector Terminal Connector Terminal M130 66 M130 74 When AUX, DVD or camera image SKIB2251J |