JEEP

0801022

2022-01-15 · NHTSA 10222982

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: Drivetrain Control Module (DTCM) Updates This bulletin involves reprogramming the DTCM with the latest available software. The customer may describe one or more of the following: Noise while disconnecting the 4WD at speeds around 56 kph (35 mph). A hum, chatter or growl noise heard intermittently at speeds approximately between 48-72 kph (30-45 mph). Upon further investigation the technician may find that the following Diagnostic Trouble Code (DTC) is active or stored:C2502-64 - Status ECM Tcfailsts Or Transm2 Transmissionfailsts Or Brake8 Dstfailsts Or Brake8 Escfailsts Or Status ECM Emsfailsts Or Ge Electricsteeringfailsts - Signal Plausibility Failure. DTC C2502-64 may be active or stored in the DTCM due to other OBD DTC?s with the Transmission Control Module (TCM) or Powertrain Control Module (PCM). The DTC will not turn on a Malfunction Indicator Lamp (MIL) light.

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.