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Home >> Chrysler >> 2009 >> Sebring Base, 2D Convertible, ED3 >> Repair and Diagnosis >> Transmission >> Automatic Trans >> (Automatic Transmission Control Module (TCM) - Electrical Diagnostics) >> DTC Troubleshooting >> P171B-Requested Shift Fork 1 / Detected Shift Fork 3 Movement >> Possible Causes

Possible Causes

Possible Causes 
INTERNAL TRANSMISSION PROBLEM
TRANSMISSION CONTROL MODULE (TCM)

Always perform the MPS6 Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure