JEEP

1800623

2023-05-06 · NHTSA 10239925

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 Customers may experience the following: ? Engine Stop/Start does not work as expected and it is often automatically deactivated. Customers may also experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs): ? P2110 - Electronic Throttle Control System Bank 1 - Forced Limited RPM. ? P2173 - High Airflow/Vacuum Leak Detected (Slow Accumulation). ? U0100 - Lost Communication With ECM/PCM. ? P0456 - EVAP System Small Leak. NOTE: If DTC P0456 is present use the wiTECH Small Leak Verification Test (SLVT) to determine if a leak is present in the system. ? P1CEA - Boost Side EVAP Purge System Performance. In addition, the customer may also experience the following: ? The vehicle will not crank if the ECM gets hotter than 50 °C (122 °F). ? Intermittent no-crank when first starting the vehicle. The following DTC has been changed from a one trip fault to a two trip fault: ? P0607 - ECU Internal Performance. This bulletin involves reprogramming the PCM with the latest available software.

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.