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Home >> Jeep >> 2009 >> Commander Sport, 3.7 K, AWD >> Repair and Diagnosis >> Transmission >> Automatic Trans >> Transmission Control Module (TCM) - Electrical Diagnostics >> DTC Troubleshooting >> U0401-Implausible Data Received From ECM/Pcm >> Possible Causes
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Possible Causes

Possible Causes 
FCM CAN BUS DTCS
ENGINE DTCS
TRANSMISSION CONTROL MODULE

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

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