E 450 V8-5.4L (2009)
Communications Control Module: Procedures
Audio Control Module (ACM) Self-Diagnostic Mode
Audio Control Module (ACM) Self-Diagnostic Mode
Audio Systems Without 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-around test begins.
-
The display indicates each speaker as it is tested.
4. NOTE: If the speaker walk-around test is the only test required, this procedure can be stopped after step 3 by turning the ACM off.
Before the speaker walk-around test is complete, carry out any of the following actions:
5. To exit the self-diagnostic mode, turn the ACM 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.
