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Home >> Jeep >> 2011 >> Grand Cherokee Laredo, 5.7 T, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 3 ((Transmission Control Module (TCM) - Electrical Diagnostics)) >> DTC Troubleshooting >> U140F-Implausible Engine Variant Data >> Possible Causes

Possible Causes

WARNING: This page is about a different variant/trim than selected.
Possible Causes 
CAN BUS DTCS PRESENT
PCM DTCS PRESENT
TRANSMISSION CONTROL MODULE (TCM)

Always perform the NAG1 Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  NAG1 PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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