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Home >> Chrysler >> 2009 >> 300 LX >> Repair and Diagnosis >> Accessories & Equipment >> Cruise Control Systems >> Cruise Control System - Active Cruise Control Module (Acc) - Electrical Diagnostics >> DTC Troubleshooting >> P1666-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  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  .