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LAN-126 < DTC/CIRCUIT DIAGNOSIS > [CAN SYSTEM (TYPE 3)] AV BRANCH LINE CIRCUIT AV BRANCH LINE CIRCUIT Diagnosis Procedure INFOID:0000000009978265 1. CHECK CONNECTOR 1. Turn the ignition switch OFF. 2. Disconnect the battery cable from the negative terminal. 3. Check the following terminals and connectors for damage, bend and loose connection (unit side and con- - AV control unit - Harness connector M157 - Harness connector M46 Is the inspection result normal? YES >> GO TO 2. NO >> Repair the terminal and connector. 2. CHECK HARNESS FOR OPEN CIRCUIT 1. Disconnect the connector of AV control unit. 2. Check the resistance between the AV control unit harness connector terminals. - Models without navigation system - Models with navigation system Is the measurement value within the specification? YES >> GO TO 3. NO >> Repair the AV control unit branch line. 3. CHECK POWER SUPPLY AND GROUND CIRCUIT Check the power supply and the ground circuit of the AV control unit. Refer to the following. AV-213, "AV CONTROL UNIT : Diagnosis Procedure" • BOSE audio without navigation: AV-367, "AV CONTROL UNIT : Diagnosis Procedure" • BOSE audio with navigation: AV-580, "AV CONTROL UNIT : Diagnosis Procedure" Is the inspection result normal? YES (Present error)>>Replace the AV control unit. Refer to the following. • Base audio with separate display: AV-250, "Removal and Installation" • BOSE audio without navigation: AV-404, "Removal and Installation" AV-610, "Removal and Installation" YES (Past error)>>Error was detected in the AV control unit branch line. >> Repair the power supply and the ground circuit. AV control unit harness connector Resistance ( Ω ) Connector No. Terminal No. M174 81 80 Approx. 54 – 66 AV control unit harness connector Resistance ( Ω ) Connector No. Terminal No. M180 90 74 Approx. 54 – 66 |