Flash: Transmission Diagnostic and Shift Enhancements
This bulletin
involves reprogramming the Transmission Control Module (TCM) withthe latest available software.
A small number of customers may experience a Malfunction Indicator
Lamp (MIL) illumination. Upon further investigation the technicianmay find the following Diagnostic Trouble Codes (DTC) set in the PCM
memory:U0401-00
- Implausible Data Received From ECM/PCM (Sales Code ERC only).
In addition some customers may experience one or more
of the following condition:Poor
shift quality on coast-down shifts (bumps) (Sales Code EZH only).
During
an engine limp mode condition, the transmission remains in a fixedgear.
The following software enhancements are also available:Start
Stop quality enhancement (WK with Sales Code ERC only).
Transmission
shift quality enhancement.
