Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the...
Jeep technical service bulletin 18-037-19 REV. A for 2019 Jeep Wrangler.
- Bulletin number
- 18-037-19 REV. A
- Component
- Power train
- Summary
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. The customer may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs: P050B - Cold Start Ignition Timing Performance. P0456 - EVAP System Small Leak. P0128 - Thermostat Rationality. P0507 - Idle Speed Performance Higher Than Expected. Customers may also describe the following condition: Excessive radiator fan noise when the A/C is on MAX output. In addition, the following software enhancements are available:Electric Vacuum Pump (EVP) update. Fan noise reduction.
Owners of these vehicles have filed 81 complaints in the transmission category.
Vehicles covered
- Jeep Wrangler 2019 2019
VIN decoder
See the problems and recalls for an exact car
Buying a used Jeep Wrangler?
Check the exact car before you pay: accidents, salvage or flood titles, odometer readings and previous owners.
Check its history