Pinpoint Test Z: The ACM Does Not Respond To Touchscreen Or Button Presses

WARNING: This page is about a different car, the 2010 Lincoln MKX and 2010 Ford Edge. However, it is still accessible from the selected car via links, so may be relevant.

Z1 CHECK FOR LOST COMMUNICATION DTCs
NOTE: Audio system lost communication DTCs include U0184, U0184:00, U0193, U0193:00, U0197 and U0197:00.
- Using the scan tool, retrieve all continuous DTCs from all modules.
- Are audio system lost communication DTCs present in any module?
- Yes: REFER to DTC CHARTS .
- No: For vehicles with navigation, GO to Z3. For all others, GO to Z2 .
Z2 CHECK FOR DTC B2924 OR DTC U2013:63
- Ignition ON.
- Clear the ACM DTCs.
- Wait 3 minutes.
- Repeat the ACM self-test, making sure that no buttons are pressed during the test.
- Is DTC B2924 set in the ACM ?
- Yes: INSTALL a new ACM . REFER to AUDIO CONTROL MODULE (ACM) . TEST the system for normal operation.
- No: GO to Z3 .
Z3 CHECK FOR CORRECT ACM OPERATION
- Ignition OFF.
- Disconnect all the ACM connectors.
- Check for:
  - corrosion
  - damaged pins
  - pushed-out pins
- Connect all the ACM 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 . REFER to 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.