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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 33 ((Electronic Shift Module (ESM) - Electrical Diagnostics - 8HP70)) >> DTC Troubleshooting >> U11C3-00-ESM Lost Communication With TCM On D-Pt Can >> Theory Of Operation

Theory Of Operation

WARNING: This page is about a different variant/trim than selected.

Electronic Shift Module (ESM) performs various internal tests to verify proper controller operation. This Diagnostic Trouble Code (DTC) indicates that an expected message was not received from the Transmission Control Module (TCM) on the CAN D-PT BUS.

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