Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming of the...

Bulletin number

18-032-16 REV. A

Component

Power train: automatic transmission: control module (TCM/PCM/tecm)

Summary

Flash: Powertrain Diagnostic And System Improvements This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the latest software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the following Diagnostic Trouble Codes (DTCs) have been set: · U1424 - Implausible Engine Torque Signal Received. · P0122 - Throttle Position Sensor 1 Circuit Low. · P0123 - Throttle Position Sensor 1 Circuit High. · P0222 - Throttle Position Sensor 2 Circuit Low. · P0223 - Throttle Position Sensor 2 Circuit High. · P2299 - Brake Pedal Position/Accelerator Pedal Position Incompatible. · P2227 - Barometric Pressure Circuit Performance. · P3032 - Barometric Pressure Sensor Performance Plausibility. · P0441 - EVAP Purge System Performance. · P0455 - EVAP System Large Leak. · P0335 - Crankshaft Position Sensor Circuit. · P0339 - Crankshaft Position Sensor Intermittent. · P0456 - EVAP System Small Leak. In addition, the following software enhancement is available: · Changes to Enhanced Automated Oil Change Indicator (EAOCI) calibration to more accurately determine maintenance interval based on engine loads and driving habits.

Owners of these vehicles have filed 41 complaints in the transmission category.