Flash: Powertrain System Improvements/EnhancementsThis bulletin involves selectively erasing and...

Bulletin number

18-103-16 REV. B

Component

Electrical system: software

Summary

Flash: Powertrain System Improvements/EnhancementsThis bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new 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) have been set:P2299 - Brake Pedal Position / Accelerator Pedal Position Incompatible (14&15 MY). P0116 - Engine Coolant Temperature Sensor Performance (14&15 MY). P0335 - Crankshaft Position Sensor Circuit (14&15 MY). U1424-00 - Implausible Engine Torque Signal Received (14&15 MY). P1239 - Engine Oil Temperature Too Low (15 MY Sales Code ERB). P0300 - Multiple Cylinder Misfire.P0456 - EVAP System Small Leak.P0607 - ECU Internal Performance.P2096 - Downstream Fuel Trim System 1 Lean.P2097 - Downstream Fuel Trim System 1 Rich. P2098 - Downstream Fuel Trim System 2 Lean. P2099 - Downstream Fuel Trim System 2 Rich. P1004 - Short Runner Valve Control Performance. P2008 - Short Runner Valve (SRV) Control Circuit. P2016 - Intake Manifold Runner Position Sensor Circuit Low. P2017 - Intake Manifold Runner Position Sensor Circuit High. P26AB - Engine Coolant Bypass Valve Stuck.U0140 - Lost Communication With Body Control Module (attempting to clear this DTC will be unsuccessful) (with 4.7L or 3.6L).P0607 - ECU Internal Performance. (with 4.7L).The following improvements are included in this update:Throttle Position Sensor (TPS) calibration (14&15 MY).Corrects a false oil pressure lamp illumination at key on (14&15 MY with 5.7L).Shift quality of the first shift after a few hours of vehicle drivetrain cooling down.Automatic Shut Down (ASD) Relay Enhancements To Improve Fuel Pump Relay Initialization At Key On - (Auto Shutdown).Charging system voltage regulator control improvements.System improvements to prevent MIL illumination with a DTC P0300 - Multiple Cylinder Misfire when using a block heater in ambient temperatures grea

Owners of these vehicles have filed 634 complaints in the electrical category.