JEEP

21-043-17

2017-09-22 · NHTSA 10121811

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: Transmission Diagnostic and Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one of the following Diagnostic Trouble Codes (DTCs) have been set:U1412 - Implausible Vehicle Speed Signal Received. P0887 - TCM Power Control Circuit High. U0001 - Automatic Gearbox Shifter Module (AGSM) CAN Communication BUS (BUS Off). P0901 - Clutch 1 Actuator Control Circuit Performance. In addition, the following software enhancement is available:Changes which allow the catalytic convertor to operate cooler.

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.