Base Audio

STEERING SWITCH (SEDAN)

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, Sedan.

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.





Do the steering wheel audio control switches check OK?
YES- GO TO 2
NO- Replace steering wheel audio control switch. Base Audio.

2. CHECK HARNESS






1.Disconnect Bluetooth control unit connector B126 and spiral cable connector M30.
2.Check continuity between Bluetooth control unit harness connector B126 (A) and spiral cable harness connector M30 (B).





3.Check continuity between Bluetooth control unit connector B126 (A) and ground.





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

3. SPIRAL CABLE CHECK






1.Disconnect spiral cable connector M88.
2.Check continuity between spiral cable harness connector M30
(A) and M88 (B).





Does continuity exist?
YES- Inspection End.
NO- Replace spiral cable. Service and Repair.