Description
Initial diagnosis of A/C auto amp.
DTC Logic
DTC DETECTION LOGIC

Diagnosis Procedure
1.CHECK WITH SELF-DIAGNOSIS FUNCTION OF CONSULT
Using CONSULT, perform "SELF-DIAGNOSIS RESULTS" of HVAC.
U1000 CAN comm circuit
B257B, B257C ambient sensorMicrophone
Removal and Installation
REMOVAL
Remove the front room/map lamp assembly. Refer to INL-84, "Removal
and Installation".
Detach the microphone connector (A).
Remove the front room/map lamp covers (1), then remove the
map lamp assembly cover (2).
Release the m ...
Power supply and ground circuit
AUDIO UNIT
AUDIO UNIT : Diagnosis Procedure
1.CHECK FUSES
2.POWER SUPPLY CIRCUIT CHECK
Disconnect audio unit connector M132.
Check voltage between the audio unit connector M132 and ground.
3.GROUND CIRCUIT CHECK
Inspect audio unit case ground.
DISPLAY UNIT
DISPLAY UNIT : Dia ...
Rear door speaker
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio signals before sending them to the rear door
speakers using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker c ...