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AV U1265 BOSE AMP. AV-575 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] C D E F G H I J K L M B A O P U1265 BOSE AMP. DTC Logic INFOID:0000000009652366 Diagnosis Procedure INFOID:0000000009652367 1. CHECK CONTINUITY BETWEEN AV CONTROL UNIT AND BOSE AMP. 1. Turn ignition switch OFF. 2. Disconnect AV control unit connector and BOSE amp. connector. 3. Check continuity between AV control unit harness connector and BOSE amp. 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 VOLTAGE AV CONTROL UNIT 1. Connect AV control unit connector. 2. Turn ignition switch ON. 3. Check voltage between AV control unit harness connector and ground. Is the inspection result normal? YES >> Replace BOSE amp. Refer to AV-613, "Removal and Installation" NO >> Replace AV control unit. Refer to AV-610, "Removal and Installation" . DTC Display contents of CONSULT DTC detection condition Possible malfunction factor U1265 AMP ON TERMINAL BOSE amp. ON signal circuit is open or shorted. Check BOSE amp. ON signal circuit AV control unit BOSE amp. Continuity Connector Terminals Connector Terminals M178 1 B252 20 Existed AV control unit Ground Continuity Connector Terminals M178 1 Not existed Probe Standard Voltage (Approx.) (+) (–) AV control unit Connector Terminal Connector Terminal M178 1 M178 20 9.0 V - 16.0 V 12.0 V |