TSB-15-023

A subject vehicle may exhibit an illuminated check engine lamp with DTC (Diagnostic Trouble Code) P2148 and/or P2151. The engine ECU software may falsely detect an issue and record these DTC?s in the engine ECU. Revised engine ECU software has been made available to prevent this false detection. If DTC P2148 and/or P2151 are recorded in the engine ECU, reprogram the ECU to the software level listed in this bulletin. A subject vehicle may exhibit an illuminated check engine lamp with DTC (Diagnostic Trouble Code) P026C and/or P026D. The engine ECU software may falsely detect an issue and record these DTC?s in the engine ECU. Revised engine ECU software has been made available to prevent this false detection. If DTC P026C and/or P026D are recorded in the engine ECU, reprogram the ECU to the software level listed in this bulletin.