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Home >> Jeep >> 2013 >> Compass Limited, FWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 43 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> P1632-TCM Internal - Test Internal Watchdog Performance >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2009 Jeep Liberty. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes 
TRANSMISSION CONTROL MODULE

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Transmission Control (TCM) - Standard Procedure