Diagnostic Test

WARNING: This page is about a different car, the 2012 Dodge Charger. However, it is still accessible from the selected car via links, so may be relevant.

VERIFY DTC IS ACTIVE
1. Using a scan tool, read ACC DTCs.
  Is the DTC active at this time?
  
  Yes
  - Replace the ACC Module in accordance with the Service Information.
  - Perform the ACC MODULE VERIFICATION TEST. Refer to STANDARD PROCEDURE - ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .
  No
  - No repair is necessary. Make sure the lens is free of dirt, damage, and other obstructions. Clear the DTC and verify the proper operation of the ACC system.
  - Perform the ACC MODULE VERIFICATION TEST. Refer to STANDARD PROCEDURE - ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .