JEEP

21-033-15

2015-05-20 · NHTSA 10148921

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 Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software followed by a drive validation. The following software enhancement, for the 948TE 9-speed transmission, is being released to improve diagnostics for the following Diagnostic Trouble Codes (DTCs): ? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance ? P0887 - TCM Power Control Circuit High ? P1720 - Output Speed Sensor-Wheel Speed Rationality ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective ? P215C - Output Shaft Speed Wheel Speed Correlation ? U0401 - Implausible Data Received From ECM-PCM The software also enables DTC P07A7 - Transmission Friction Element C Stuck On to set in the case of a dislodged C-clutch snap-ring.

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.