CHRYSLER, DODGE

18-086-16

2016-07-20 · NHTSA 10121696

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Flash: Powertrain Diagnostic and System ImprovementsThis bulletin involves selectively erasing and reprogramming the Powertrain Control Module (PCM) with new software. A small number of customers may experience the following symptom or conditions or a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find the following (DTCs):JC Vehicles equipped with a 2.4L engine (Sales Code ED3 or ED7):· **P0335 - Crankshaft Position Sensor Circuit. · P050B - Cold Start Ignition Timing Performance.· P2299 - Brake Pedal Position / Accelerator Pedal Position Incompatible.**· U0140 - Lost Communication With Body Control Module. Attempting to clear the DTC may be unsuccessful.· P0456 - Evap purge system small leak.· 2-1 downshift improvement.· Charging system duty cycle enhancement to improve starting performance in low ambient temperatures.· P219A - Bank 1 Air-Fuel Ratio Imbalance.· Enhanced Automatic Oil Change Indicator (EAOCI) system enhancements that forcethe use of the severe duty cycle algorithm anytime the PCM is replaced. The vehicleduty cycle information used in the EAOCI calculation is stored in the PCM and cannot be recovered/transferred when the controller is replaced. As a result, the severe duty cycle is used in these scenarios to ensure the customer receives a timely oil change required message.· Mode 6 data accuracy enhancement for generic scan tools. JC Vehicles equipped with a 3.6L engine (Sales Code ERB):· **P0335 - Crankshaft Position Sensor Circuit.· P2610 - PCM Internal Engine Off Timer Performance.**· U0140 - Lost Communication With Body Control Module. Attempting to clear theDTC may be unsuccessful.· Enhanced Automatic Oil Change Indicator (EAOCI) system enhancements that forcethe use of the severe duty cycle algorithm anytime the PCM is replaced. The vehicleduty cycle information used in the EAOCI calculation is stored in the PCM and cannot be recovered/transferred when the controll

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