18-103-22

Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the 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 Code (DTC) has been set:P0556 - Brake Booster Pressure Sensor Circuit Performance. Customer may describe the following:Fuel odor during frequent stop and re-start driving, during high ambient temps.