What does OBD2 code P0122 mean?+
P0122 stands for Throttle/Pedal Position Sensor A Circuit Low Input. TPS circuit voltage is below expected range.
What causes code P0122?+
Short to ground in TPS wiring; Faulty TPS; Corroded connector; Throttle body damage
How do I fix code P0122?+
Check TPS connector for corrosion; Test TPS reference voltage (5V); Check wiring for short to ground; Replace TPS
How much does it cost to fix P0122?+
Estimated repair cost for P0122 is $100–$400.
Is P0122 DIY-friendly?+
Yes — P0122 is generally DIY-friendly with basic tools.