Electronic Shift Module (ESM) - 8HP45

P0607-ECU INTERNAL PERFORMANCE - ESM

For a complete wiring diagram Refer to the Wiring Information

Theory of Operation

The Shift Lever Assembly (SLA) Electronic Shift Module (ESM) performs various internal tests to verify proper controller operation. This DTC indicates there is an issue with the ESM internal processor.

- When Monitored:
Continuously with the ignition in the run position.

- Set Condition:
If the ESM controller detects an invalid calibration (checksum value).





Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. 8HP45 Pre-Diagnostic Troubleshooting Procedure

View repair

Repair

- Using the schematics as a guide, check the Electronic Shift Module (ESM) terminals for corrosion, damage or terminal push out. Pay particular attention to all power and ground circuits. If no problems are found, replace the Shift Lever Assembly. Transmission Shifter - Removal.
- Perform the TRANSMISSION VERIFICATION TEST. Verification Tests.