18-065-20

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with updated software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that the followingDiagnostic Trouble Code (DTC) has been set:P0456 - EVAP System Small Leak.If DTC P0456 is present use the wiTECH Small Leak Verification test (SLVT) to determine if a leak is present in the system. In addition, customers may experience the following concern: An unpleasant odor in the vehicle under certain extreme ambient conditions(Police Group (Sales Code AHB) or Special Service Group (Sales Code AHV) only).