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AV AUX IMAGE SIGNAL CIRCUIT AV-587 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P AUX IMAGE SIGNAL CIRCUIT Description INFOID:0000000009652385 • Transmits the image signal of AUX (auxiliary input) device from auxiliary input jacks to AV control unit. Diagnosis Procedure INFOID:0000000009652386 1. CHECK CONTINUITY AUX IMAGE SIGNAL CIRCUIT 1. Turn ignition switch OFF. 2. Disconnect AV control unit connector and auxiliary input jacks connector. 3. Check continuity between AV control unit harness connector and auxiliary input jacks 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 AUX IMAGE SIGNAL 1. Connect AV control unit connector and auxiliary input jacks connector. 2. Turn ignition switch ON. 3. Check signal between AV control unit harness connector and ground. Is the inspection result normal? YES >> Replace AV control unit. Refer to AV-610, "Removal and Installation" . NO >> Check that there is no malfunction in the external device. AV control unit Auxiliary input jacks Continuity Connector Terminal Connector Terminal M179 26 B273 7 Existed 46 8 AV control unit Ground Continuity Connector Terminal M179 26 Not existed 46 Probe Condition Standard Reference value (+) ( − ) AV control unit Connector Terminal Connector Terminal M179 26 M179 46 When AUX Waveform according to SKIB2251J |