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 AV control unit. Refer to the following.
- Models without BOSE audio with color display: AV-231, "AV CONTROL UNIT : Diagnosis Procedure" - Models with BOSE audio with color display: AV-388, "AV CONTROL UNIT : Diagnosis Procedure" - Models with BOSE audio with color display with navigation system: AV-571, "AV CONTROL UNIT : Diagnosis Procedure"
M&A branch line circuit
HVAC branch line circuitHow to enable/disable the Driver Attention Alert system
Perform the following steps to enable or disable
the Driver Attention Alert system.
1. Press the button until
"Settings" displays
in the vehicle information display and
press the OK button. Use the button
to select "Driver Assistance". Then press the
OK button.
2. Select "Driver Att ...
Cooling and/or dehumidified heating
(AUTO)
This mode may be used all year round as the
system automatically works to keep a constant
temperature. Air flow distribution and fan speed
are also controlled automatically.
1. Press the AUTO button on.
2. Turn the temperature control dial to the left
or right to set the desired temperatur ...
Tweeter
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 tweeters using
the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker connectors ...