JEEP

18-077-20

2020-09-04 · NHTSA 10181596

A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.

Manufacturer summary

Original wording in English

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 of the following DTCs have been set:B25C9 - Driver Door Ajar Switch 2 Stuck Closed. P061A - Level 2 Torque Performance. C0513 - Wheel Speed Signal Right Rear Rationality. C050D - Wheel Speed Signal Left Rear Rationality. C0507 - Wheel Speed Signal Right Front Rationality. C0501 - Wheel Speed Signal Left Front Rationality. P0607 - ECU Internal Performance. Customers may experience one or more of the following:Poor shift quality. Lack of vehicle speed. A clatter or ticking noise from the engine at idle. Immediate autostart after autostop (without releasing the brake pedal). Failed autostart ? engine cranks but does not start, or starts and then stalls. The following software enhancements are also available:Cam/Crank sensor diagnostics. Engine Stop/Start (ESS) improvements.

Repeated filings are grouped only when make, bulletin number, publication date and complete summary agree. Original record numbers are retained. Older publications remain available, and an explicit later version is shown when established. Pre-1994 vehicle associations are separated from default results; an unspecified year does not mean all model years apply.