Flash: Powertrain Diagnostic and System Improvements
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 that the following DTCs has been set:U1424 - Implausible Engine Torque Signal Received.
U0402 - Implausible Data Received From TCM.
P1DD2-00 - Torque Request Signal From TCM Denied.
P0128 - Thermostat Rationality.
Enhancement also included:Improved calibrations for catalyst overtemp protection.
