Flash: Transmission Shift And Drivability Enhancements
This bulletin involves reprogramming of the Transmission Control Module (TCM) with the
latest available software.
A small number of customers may experience an erroneous Malfunction Indicator Lamp
(MIL) Illumination. Upon further investigation, the technician may find a Diagnostic Trouble
Code (DTC) stored in the TCM memory.
3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFL)
? P1DCD - TCM monitoring processor performance multiple clutches locked up.
? P1B13 - Park-By-Wire unintended out of park position.
? P0734 - Gear 4 Shift Incorrect Ratio.
3.0L Engine (Sales Code EHD) with 845RE Transmission (Sales Code DFL)
? P1DCD - TCM monitoring processor performance multiple clutches locked up.
? P1B13 - Park-By-Wire unintended out of park position.
3.6L Engine (Sales Code ERB) with 845RE Transmission (Sales Code DFG)
? Harsh 2-1 downshift or bump at low speeds.
? P0734 - Gear 4 Shift Incorrect Ratio.
