Diagnosis Procedure
1.CHECK CONNECTOR
2.CHECK HARNESS FOR OPEN CIRCUIT

3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check the power supply and the ground circuit of the A/C auto amp. Refer to the following.
- Models with color display: HAC-60, "A/C AUTO AMP. : Diagnosis Procedure" - Models with monochrome display: HAC-165, "A/C AUTO AMP. : Diagnosis Procedure"
AV branch line circuit
STRG branch line circuitSteering switch
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering wheel audio
control switch circuit changes, depending on which button is pushed.
Diagnosis Procedure
1.CHECK STEERING WHEEL AUDIO CONTROL SWITCH RESISTANCE
Turn ignition switch ...
Daytime running light system
The LED portion of the headlights automatically
illuminate at 100% intensity when the engine is
started and the parking brake released. The daytime
running lights operate with the headlight
switch in the OFF position. When you turn the
headlight switch to the position for
full
illumination t ...
Door lock and unlock switch
DRIVER SIDE
DRIVER SIDE : Description
Transmits door lock/unlock operation to BCM.
DRIVER SIDE : Component Function Check
1. CHECK FUNCTION
With CONSULT
Check CDL LOCK SW, CDL UNLOCK SW in Data Monitor mode with CONSULT
DRIVER SIDE : Diagnosis Procedure
1. CHECK POWER WINDOW SWITCH OUTP ...