Mid Audio

STEERING SWITCH

Description

When one of the steering wheel audio control switches is pushed, the resistance in steering switch circuit changes depending on which button is pushed.


Diagnosis Procedure

Regarding Wiring Diagram information, Mid Audio System.

1. CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE

1.Turn ignition switch OFF.
2.Disconnect steering wheel audio control switch connector M88.
3.Check resistance between steering switch connector terminals.





Is the inspection result normal?
YES- GO TO 2.
NO- Replace steering wheel audio control switch. Mid Audio.

2. CHECK HARNESS (SPIRAL CABLE TO BLUETOOTH CONTROL UNIT)

1.Disconnect Bluetooth control unit connector B33 and spiral cable connector M30.
2.Check continuity between Bluetooth control unit harness connector B33 and spiral cable harness connector M30.





3.Check continuity between Bluetooth control unit connector B33 and ground.





Are the continuity results as specified?
YES- GO TO 3.
NO- Repair harness or connector.

3. CHECK HARNESS (BLUETOOTH CONTROL UNIT TO AUDIO UNIT)

1.Disconnect audio unit connector M45.
2.Check continuity between audio unit connector M45 and Bluetooth control unit connector B33.





Are the continuity test results as specified?
YES- GO TO 4
NO- Repair harness or connector.

4. SPIRAL CABLE CHECK

Check continuity between spiral cable harness connector M30 and M88.





Is the inspection result normal?
YES- Inspection End.
NO- Replace spiral cable. Removal And Installation.