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Home >> Jeep >> 2018 >> Grand Cherokee Laredo, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 34 ((Electronic Shift Module (ESM) - Electrical Diagnostics - 8HP95)) >> DTC Troubleshooting >> U0074-00-Dedicated Powertrain (D-Pt) Can Bus Off >> 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 DTC indicates that there is an issue with the Dedicated Powertrain Bus (D-PT/ Eshift) between the ESM and Transmission Control Module (TCM).

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