Pinpoint Test F: The Audio Front Control Module (ACM) Does Not Respond To Touchscreen Or Button Presses - Vehicles With Navigat

Information and Entertainment System

Pinpoint Test F: The Audio Front Control Module (ACM) Does Not Respond To Touchscreen Or Button Presses - Vehicles With Navigation

Normal Operation

When a button is pressed on the Audio Front Control Module (ACM) (whether it is a hard button or the touchscreen), the ACM (Audio Front Control Module) takes the corresponding action.

- DTC B108E:63 (Display/ Component Protection Time-Out)- sets in continuous memory when an ACM (Audio Front Control Module) touch screen is touched for longer than 2 minutes, or during the on-demand self-test, if an ACM (Audio Front Control Module) touch screen is detected as active longer than 3 seconds. Make sure the ACM (Audio Front Control Module) touch screen is not touched during the self-test.

- DTC U2013:63 (Switch Pack: Circuit / Component Protection Time-Out)- sets in continuous memory when an ACM (Audio Front Control Module) hard button is stuck for longer than 2 minutes, or during the on-demand self-test, if an ACM (Audio Front Control Module) hard button is detected as active for any duration. Make sure no ACM (Audio Front Control Module) buttons are pressed during the self-test.

This pinpoint test is intended to diagnose the following:

- ACM (Audio Front Control Module)

PINPOINT TEST F : THE ACM (Audio Front Control Module) DOES NOT RESPOND TO TOUCHSCREEN OR BUTTON PRESSES - VEHICLES WITH NAVIGATION

F1 CHECK FOR DTC U2013:63 OR DTC B108E:63

- Ignition ON.

- Clear the ACM (Audio Front Control Module) DTCs.

- Wait 3 minutes.

- Repeat the ACM (Audio Front Control Module) self-test, making sure that no buttons or touch screen are pressed during the test.

Is DTC U2013:63 or DTC B108E:63 set in the ACM (Audio Front Control Module)?

Yes
For DTC U2013:63, GO to F2.

For DTC B108E:63,GO to F3.

No
GO to F3.

F2 CHECK FOR A STUCK BUTTON

- NOTE: Do not press any ACM (Audio Front Control Module) buttons during this step.

Carry out the hardkey test. Refer to Audio Control Module (ACM) Self-Diagnostic Mode Audio Control Module (ACM) Self-Diagnostic Mode.

Does the hardkey test indicate a stuck button?

Yes
ATTEMPT to repair the stuck button. If no repair is possible, GO to F3.

No
GO to F3.

F3 CHECK FOR CORRECT ACM (Audio Front Control Module) OPERATION

- Ignition OFF.

- Disconnect all the ACM (Audio Front Control Module) connectors.

- Check for:
- corrosion

- damaged pins

- pushed-out pins


- Connect all the ACM (Audio Front Control Module) connectors and make sure they seat correctly.

- Operate the system and determine if the concern is still present.

Is the concern still present?

Yes
INSTALL a new ACM (Audio Front Control Module). REFER to Audio Control Module (ACM) Audio Control Module (ACM). TEST the system for normal operation.

No
The system is operating correctly at this time. The concern may have been caused by a loose or corroded connector.