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Home >> Jeep >> 2025 >> Grand Cherokee Summit >> Repair and Diagnosis >> Transmission >> Transmission Control Systems >> (Electronic Shift Module (ESM) - Electrical Diagnostics) >> DTC Troubleshooting >> U11C3-00 Electronic Shift Module (ESM) Lost Communication With TCM On D-Pt Can >> Possible Causes
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Possible Causes

Possible Causes
PRIVATE CAN BUS CIRCUIT OPEN CIRCUIT
PRIVATE CAN BUS CIRCUIT SHORTED TO GROUND
PRIVATE CAN BUS CIRCUIT SHORTED TO VOLTAGE
TCM PRIVATE CAN BUS SHORTED OR OPEN INTERNALLY
ELECTRONIC SHIFT CONTROL MODULE (ESM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to:  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .