Flash: 5.7L Diagnostic And System Improvements
This bulletin involves reprogramming of the Powertrain Control Module (PCM) with the
latest 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
Diagnostic Trouble Codes (DTCs):
· **P0456 - Evap System Small Leak.
· P2610 - PCM Internal Engine Off Timer Performance.
· P2299 - Brake Pedal Position / Accelerator Pedal Position Incompatible.
· P0335 - Crankshaft Position Sensor Circuit. (2014-2015 MY).**
· U0140 - Lost Communication With Body Control Module. (LC, LD and LX).
· P1621 - O2 Sensor Reference Voltage Circuit Low.
· P1622 - O2 Sensor Reference Voltage Circuit High.
· P0606 - Internal Control Processor.
· P0300 - Multiple Cylinder Misfire.
· P219A - Bank 1 Air-Fuel Ratio Imbalance.
· P219B - Bank 2 Air-Fuel Ratio Imbalance.
· P0307 - Cylinder 7 Misfire.
· P2096 - Downstream Fuel Trim System 1 Lean.
· P2097 - Downstream Fuel Trim System 1 Rich.
