JEEP

1806420

2020-08-22 · NHTSA 10221881

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:P2610 - PCM Internal Engine Off Timer Performance. U1504 - Implausible Message Data Length Received From Steering Angle Sensor. U1424 - Implausible Engine Torque Signal Received DTC False Failure. P2097 - Downstream Fuel Trim System 1 Rich DTC Calibration Robustness Improvement. P2099 - Downstream Fuel Trim System 2 Rich DTC Calibration Robustness Improvement. U0402 - Implausible Data Received. B10EA - Blower Motor Control Circuit High. B10E9 - Blower Motor Control Circuit Low. P0456 - EVAP System Small Leak. In addition, the following software enhancements are available:Calibration update to allow the throttle body to be cycled while the engine is off, for diagnostic purposes. Calibration update for a slight push in the vehicle that may be felt when coasting down during a 8th to 7th gear downshift. Vehicle shudder at stop/start with A/C on.

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.