Wiring Diagram



Heated seat
Symptom diagnosisB257B, B257C ambient sensor
Description
COMPONENT DESCRIPTION
Ambient Sensor
The ambient sensor (1) is installed to the front bumper
reinforcement.
It detects ambient temperature and converts it into a resistance
value which is then input into the A/C auto amp.
Ambient Sensor Circuit
AMBIENT TEMPERATUR ...
Front door speaker
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE
speaker amp. amplifies the
audio signals before sending them to the front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. ...
Key slot illumination
Description
Blinks when Intelligent Key insertion is required.
Component Function Check
1. CHECK FUNCTION
With CONSULT
Check key slot illumination KEY SLOT ILLUMI in Active Test mode.
Diagnosis Procedure
1. CHECK KEY SLOT ILLUMINATION OUTPUT SIGNAL
Check voltage between key slot connector ...