Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp...
Jeep technical service bulletin 18-107-25 for 2023 Jeep Wrangler 4xe.
- Bulletin number
- 18-107-25
- Component
- Engine
- Summary
- Flash: Powertrain Control Module (PCM) Updates Customers must experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician must find one or more of the following Diagnostic Trouble Codes (DTC)s have been set: ● P2450 - Fuel Tank Isolation Valve Stuck Open. ● P1D83 - Implausible Engine Oil Temperature Signal Received. Customers may experience one or more of the following: ● Fuel Door will not open due to intermittent Fuel Tank Isolation Valve (FTIV) Stuck Open. ● Reduced fuel efficiency. ● Excessive oil life degradation shown when viewing fuel and oil data screen. In addition, the following software enhancement is available: ● Hood Switch changes. This bulletin involves reprogramming the PCM with the latest available software
Vehicles covered
- Jeep Wrangler 4xe 2023 2023
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