Flash: Powertrain Diagnostic and System Improvements
This bulletin involves reprogramming the Powertrain Control Module (PCM) with the latest available software.
A small number of customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find one or more of the following DTCs set in
the PCM memory:
U1504 - Implausible Message Data Length Received From Steering Angle Sensor.
P0128 - Thermostat Rationality.
P0335 - Crankshaft Position Sensor Circuit.
P0340 - Camshaft Position Sensor Circuit Bank 1 Sensor 1.
U1424-00 - Implausible Engine Torque Signal Received.
P1066 - Cylinder 1 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1068 - Cylinder 2 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106C - Cylinder 4 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P050D - Cold Start Rough Idle.
P0335 - Crankshaft Position Sensor Circuit.
P1607 - PCM Internal Shutdown Timer Rationality.
P0133 - O2 Sensor 1/1 Slow Response.
P0456 - EVAP System Small Leak.
P0480 - Cooling Fan 1 Control Circuit/Open.
U0402 - Implausible Data Received From TCM.
P2172 - High Airflow/Vacuum Leak Detected.
P1D73 - AGS Performance.
U0140 - Lost Communication With Body Control Module.
P0441 - Evap Purge System Performance.
P0116 - Engine Coolant Temperature Sensor 1 Performance.In addition to the DTCs above the following improvements have been made:
Min spark changes to prevent catalytic converter overheating.
Engine Startup Flare and Idle Surge.
P1066 - Cylinder 1 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P1068 - Cylinder 2 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106A - Cylinder 3 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
P106C - Cylinder 4 Oil Supply Solenoid Valve Switch Off Time Out Of Range.
U0401 - Implausible Data Received From ECM/PCM - Signal Invalid.
