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Home >> Dodge and Ram >> 2023 >> ProMaster 2500 >> Repair and Diagnosis >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> (Active Cruise Control (Acc) Module - Electrical Diagnostics) >> DTC Troubleshooting >> C1403-86-Electrical Power Steering Failure - Signal Invalid >> Possible Causes

Possible Causes

Possible Causes
ELECTRIC POWER STEERING (EPS) MODULE DTCS PRESENT
ELECTRIC POWER STEERING (EPS) MODULE
ADAPTIVE CRUISE CONTROL (ACC) MODULE

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE. 

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