Flash: Powertrain Diagnostic and System Enhancements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software.
Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following Diagnostic Trouble Codes (DTCs):U0402 - Implausible Data Received From TCM.
P1DD2 - Torque Request Signal From TCM Denied.
U1424 - Implausible Engine Torque Signal Received.
P0101 - Mass Air Flow Sensor "A" Circuit Performance.
U0418 - Invalid Data Received From Brake System Control Module.
P0128 - Thermostat Rationality.
P0703 - Brake Switch 2 Performance.
P1185 - General Pressure Sensor Correlation.
U1504 - Implausible Message Data Length Received From Steering Angle Sensor.
In addition, the following software enhancements are available:Changes which allow the catalytic convertor to operate cooler.
Multiair solenoid electrical opening change to resolve idle tick/tap issue.
Cruise control enhancements.
