21-032-15 REVA

Flash: Transmission Shift And Drivability Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination or describe harsh shifting. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs) or symptoms. ? Harsh 1-2 Upshift. ? Harsh Garage Shifts (Park to Reverse or Drive). ? P0711 - Transmission Fluid Temperature Sensor A Circuit Range-Performance. ? P0887 - TCM Power Control Circuit High. ? P1CC9 - Unable to Engage Gear. ? P1D98 - Incorrect Gear Ratio Clutch B or D Defective. ? U0401 - Implausible Data Received From ECM-PCM.