Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL)...
Ram technical service bulletin 18-053-26 for 2021 Ram 1500.
- Bulletin number
- 18-053-26
- Component
- Electrical system
- Summary
- Flash: Powertrain Control Module (PCM) Updates Customers may experience a Malfunction Indicator Lamp (MIL) illumination and the vehicle may exhibit/set the following Diagnostic Trouble Code (DTC): ● P219A - Bank 1 Air-Fuel Ratio Imbalance Bank 1. Customers may also comment on the following: ● Potential under run or stall when the vehicle utilizes the Trailer Reverse Steering Control feature and is connected to a trailer attempting to backup. This bulletin involves reprogramming the PCM with the latest available software.
Owners of these vehicles have filed 199 complaints in the electrical category.
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