The car engine P2489 Code plays vital role for solving the car engine. The meaning of the code is necessary and right meaning of the code is highly important thing. You may use general meaning of the car engine code or automobile dictionary meaning. The general meaning of the car engine code is p for Powertrain Code Problem is related engine, transmission and emissions systems. 2 for MFG – Manufacturer Specific. 4 for Transmission. 8 for Exhaust Gas Recirculation System Valve 1 and 9 for Kick-Down Switch Failed Short. The powertrain problem of the car engine is faulty here and you need to fix the problem.