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Home >> Jeep >> 2012 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Active Cruise Control (Acc) Module - Electrical Diagnostics >> DTC Troubleshooting >> P1666-00-Cruise Control Module Internal >> Possible Causes

Possible Causes

Possible Causes 
ACC MODULE

For gasoline engines, Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  3.6L & 5.7L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  or  6.4L - PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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