Possible Causes
| Possible Causes |
|---|
| TRANSMISSION CONTROL MODULE (TCM) SOFTWARE |
| ELECTRONIC SHIFT MODULE (ESM) |
Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to: 8P75PH PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE or 8HP50/850RE PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .