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Home › Jeep › 2012 › Wrangler Rubicon, Automatic Trans › Repair and Diagnosis › Transmission › Automatic Trans › Transmission Control Module (TCM) - Electrical Diagnostics › DTC Troubleshooting › U0401-Implausible Data Received From ECM/Pcm › Set Condition:

Set Condition:

When the TCM detects an incorrect CAN message from the Engine Control Module (ECM).

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