Flash: Electronic Shift Module (ESM) Updates Customers must experience a Malfunction Indicator Lamp (MIL)...
Ram technical service bulletin 08-226-26 REV. A for 2026 Ram 1500.
- Bulletin number
- 08-226-26 REV. A
- Component
- Electrical system
- Summary
- Flash: Electronic Shift Module (ESM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle must SYMPTOM: exhibit/set one or more of the following Diagnostic Trouble Codes (DTCs): ● P0607-00 - ECU Internal Performance. NOTE: DTC P0607-00 will be stored in the Automatic Gearbox Shifter Module (AGSM)/Electronic Shift Module (ESM). ● P1DF3-00 - ECU Not Initialized. NOTE: DTC P1DF3-00 will be stored in the Transmission Control Module (TCM). Customers may also comment on one or more of the following: ● Shifter not able to move out of Park with "Service Shifter" message showing on Instrument Panel Cluster (IPC). ● PRNDL lights flashing. This bulletin involves inspecting and possibly reprogramming the ESM with the latest software.
Owners of these vehicles have filed 51 complaints in the electrical category.
Vehicles covered
VIN decoder
See the problems and recalls for an exact car
Buying a used Ram 1500?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history