P2120Powertrain (P)generic
Throttle/Pedal Position Sensor/Switch "D" Circuit
The engine computer detected a problem with the throttle or accelerator pedal position sensor D—it's not sending a proper signal. This sensor tells the engine how hard you're pressing the gas pedal, so the engine knows how much power to deliver. You may experience rough shifting, poor acceleration, or the check engine light coming on.
No detailed repair guide linked yet. Check back soon or search for related issues.
