Steering Switch Signal A Circuit (Steering Switch To TEL Adapter Unit)

STEERING SWITCH SIGNAL A CIRCUIT (STEERING SWITCH TO TEL ADAPTER UNIT)

Description

- Transmits the steering switch signal to TEL adapter unit.
- Transmits the steering switch signal to audio unit via TEL adapter unit.


Diagnosis Procedure


1. CHECK STEERING SWITCH SIGNAL A (STEERING SWITCH TO TEL ADAPTER UNIT) CIRCUIT

1.Turn ignition switch OFF.
2.Disconnect TEL adapter unit connector and spiral cable connector.
3.Check continuity between TEL adapter unit harness connector and spiral cable harness connector.





4.Check continuity between TEL adapter unit harness connector and ground.





Is the inspection result normal?
YES- GO TO 2.
NO- Repair harness or connector.

2. CHECK SPIRAL CABLE

Check spiral cable.
Is the inspection result normal?
YES- GO TO 3.
NO- Replace spiral cable. Exploded View.

3. CHECK TEL ADAPTER UNIT VOLTAGE

1.Connect TEL adapter unit connector and spiral cable connector.
2.Turn ignition switch ON.
3.Check voltage between TEL adapter unit harness connector.





Is the inspection result normal?
YES- GO TO 4.
NO- Replace TEL adapter unit. Without Navigation.

4. CHECK STEERING SWITCH

1.Turn ignition switch OFF.
2.Check steering switch. .
Is the inspection result normal?
YES- INSPECTION END
NO- Replace steering switch. Without Navigation.


Component Inspection






Measure the resistance between the steering switch connector.
Standard