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Home >> Jeep >> 2021 >> Renegade Limited >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Collision/Avoidance >> (Forward Facing Camera Module (FFCM) - Electrical Diagnostics) >> DTC Troubleshooting >> C143A-86: Trailer Tow Module Stop Light Signal From TTM (Trailer Tow Module) Fail - Signal Invalid >> Possible Causes
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Possible Causes

Possible Causes
TRAILER TOW MODULE (TTM) DTCS
FORWARD FACING CAMERA MODULE (FFCM)

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

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