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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 >> P0929 Gear Shift Lock Solenoid/Actuator Control Circuit 1 Performance >> Theory Of Operation

Theory Of Operation

The Electronic Shift Module (ESM) performs various internal tests to verify proper controller operation. This Diagnostic Trouble Code (DTC) indicates there is an issue with the ESM Shift Lock Solenoid.