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 tweeters using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and speaker connectors for the following:
2.HARNESS CHECK



3.TWEETER SIGNAL CHECK


4.HARNESS CHECK



5.TWEETER SIGNAL CHECK

connector.

Front door speaker
Center speakerDLC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the terminals and connectors of the data link connector for
damage, bend and loose connection
(connector side and harness side).
2.CHECK HARNESS FOR OP ...
Battery
Keep the battery surface clean and dry.
Clean the battery with a solution of baking
soda and water.
Make certain the terminal connections are
clean and securely tightened.
If the vehicle is not to be used for 30 days or
longer, disconnect the negative (-) battery
terminal cable to ...
Diagnosis and repair workflow
Repair Work Flow
WORK FLOW
DETAILED FLOW
1.CUSTOMER INFORMATION
Interview the customer to obtain detailed information about the symptom.
2.PRELIMINARY CHECK
Perform preliminary check
3.SELF-DIAGNOSIS
Perform SELF-DIAGNOSIS.
4.SYMPTOM
Check for symptoms.
5.MALFUNCTIONING PARTS
Repair or ...