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

Bulletin number

18-033-16

Component

Engine and engine cooling

Summary

Flash: 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 the following Diagnostic Trouble Codes (DTCs) set in the PCM memory: 2.4L Engine · P0335 - Crankshaft Position Sensor Circuit. · P0301 - Cylinder 1 Misfire. · P0302 - Cylinder 2 Misfire. · P0303 - Cylinder 3 Misfire. · P0304 - Cylinder 4 Misfire. · P1607 - PCM Internal Shutdown Timer Rationality - (Powertrain Control Module). · P2610 - PCM Internal Engine Off Timer Performance - (Powertrain Control Module). · P0456 - EVAP System Small Leak. · P0441 - EVAP Purge System Performance. · P0443 - EVAP Purge Solenoid Circuit. · P0116 - Engine Coolant Temperature Sensor Performance. · P219A - Air-Fuel Ratio Cylinder Imbalance Bank 1. · U0140 - Lost Communication With Body Control Module (BCM). In addition, the following software enhancement is available: Improved alternator control at idle. 3.6L Engine · P0335 - Crankshaft Position Sensor Circuit. · P2610 - PCM Internal Engine Off Timer Performance. · P0456 - EVAP System Small Leak. · P0300 - Multiple Cylinder Misfire. · P000A - Bank 1 Camshaft 1 Position Slow Response. · P000B - Bank 1 Camshaft 2 Position Slow Response. In addition, the following software enhancement is available: Improved shift quality.

Owners of these vehicles have filed 138 complaints in the engine category.