Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the...
Ram technical service bulletin 1801623 for 2021 Ram 1500.
- Bulletin number
- 1801623
- Component
- Electrical system
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more ofthe following DTCs:P0335 - Crankshaft Position Sensor Circuit. P0339 - Crankshaft Position Sensor Intermittent. Other software enhancement included with this update: Idle stability improvements during Electronic Stability Control (ESC) events.
Owners of these vehicles have filed 199 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