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Home >> Jeep >> 2013 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 153 (Active Cruise Control (Acc) Module - Electrical Diagnostics) >> DTC Troubleshooting >> P1666-00-Cruise Control Module Internal >> Diagnostic Test

Diagnostic Test

WARNING: This page is about a different car, the 2012 Jeep Grand Cherokee. However, it is still accessible from the selected car via links, so may be relevant.
  1. VERIFY DTC IS ACTIVE 
    1. Using a scan tool, read ACC DTCs.

      Is the DTC active at this time?

      Yes 

      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 ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST. Refer to ADAPTIVE CRUISE CONTROL (ACC) VERIFICATION TEST .