Entertainment System Control Module: Service and Repair

Audio Control Module (ACM) Self-Diagnostic Mode

Audio Systems Without Navigation

NOTE: If the Audio Control Module (ACM) is inoperable the ACM (Audio Control Module) part number may be obtained from a label affixed to the chassis.

1. Turn the ACM (Audio Control Module) on.

2. Operate the audio system in radio tuner (AM/FM) mode.

3. Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins.
- The display indicates each speaker as it is tested.


4. NOTE: If the speaker walk test is the only test required, this procedure can be stopped after Step 3 by turning the ACM (Audio Control Module) off.
Before the speaker walk test is complete, carry out any of the following actions:





5. To exit the self-diagnostic mode, turn the ACM (Audio Control Module) off.

Satellite Radio Electronic Serial Number (ESN) Retrieval - Vehicles Without Navigation

NOTE: If the SDARS (Satellite Digital Audio Receiver System) is inoperable the Electronic Serial Number (ESN) may be obtained from a label affixed to the chassis.

1. Operate the audio system in satellite radio mode.

2. Depending on vehicle configuration, press and hold the AUX button and preset button 1 or the SIRIUS button and preset button 1, simultaneously.
- The Satellite Digital Audio Receiver System (SDARS) module Electronic Serial Number (ESN) displays on the screen.


3. Record the SDARS (Satellite Digital Audio Receiver System) module ESN (Electronic Serial Number).

4. Turn the audio system off.

Audio Systems With Navigation

1. Turn the Audio Control Module (ACM) on.

2. Operate the audio system in radio tuner (AM/FM) mode.

3. Press and hold preset buttons 3 and 6 for 3 seconds until the speaker walk test begins.
- The display indicates each speaker as it is tested.


4. NOTE: If the speaker walk test is the only test required, this procedure can be stopped after this step, or by allowing the speaker walk test to complete on its own.
Before the speaker walk test is complete, press the "End Test" selection.






5. The following tests are available through the "BEZEL DIAGNOSTICS" menu:





6. To exit the self-diagnostic mode, press the "Exit Diagnostics" selection from the "BEZEL DIAGNOSTICS" menu.