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AV-36 < DTC/CIRCUIT DIAGNOSIS > [BASE AUDIO] STEERING SWITCH STEERING SWITCH Diagnosis Procedure INFOID:0000000010247120 Regarding Wiring Diagram information, refer to 1. CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE 1. Disconnect combination switch connector M102. 2. Check resistance between combination switch connector terminals. Is the inspection result normal? YES >> GO TO 2. NO >> Replace steering wheel audio control switches. Refer to AV-52, "Removal and Installation" . 2. CHECK HARNESS BETWEEN BLUETOOTH ® CONTROL UNIT AND COMBINATION SWITCH 1. Turn ignition switch OFF. ® control unit connector B141 and combination switch connector M30. 3. Check continuity between Bluetooth ® control unit connector B141 and combination switch connector M30. 4. Check continuity between Bluetooth ® control unit connector B141 and ground. Is the inspection result normal? YES >> GO TO 3. NO >> Repair or replace harness or connectors. 3. SPIRAL CABLE CHECK Check continuity between combination switch connectors M30 and M102. Combination switch connector M102 Condition Resistance ( Ω) (Approx.) Terminal Terminal 16 18 Depress VOL DOWN switch. 1 Depress VOL UP switch. 121 Depress switch. 321 15 Depress MODE switch. 1 Depress switch. 121 Depress switch. 321 Depress switch. 723 Bluetooth ® control unit Combination switch Continuity Connector Terminal Connector Terminal B141 12 M30 24 Yes 13 25 14 31 Bluetooth ® control unit — Continuity Connector Terminal B141 12 Ground No 13 14 |