P2131Throttle/Pedal Position Sensor/Switch F Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2131 means pedal track F is electrically intact but disagrees with the rest of the pedal. Two makers document it for three-track pedals. GM's 2004-2005 truck tables scale APP sensor 3 to the range of the other tracks and set P2131 only when it strays more than 0.26 V from each of the other two sensors, so the majority vote singles out track F; the counter runs every 3 ms and trips at 167 (Type C in 2004, Type A in 2005). Ford's 2012 summary sets it on second-generation ETC when F departs from the others by over 1.1 degrees, lighting the wrench lamp without MIL. Circuit faults on F are P2130 and P2132-P2134. The car stays drivable; the ECU follows the two healthy tracks and softens pedal response.
- What you may notice
- Wrench or engine warning lamp on
- Softened, slower acceleration
- Often no noticeable change while driving
- Likely causes
- LikelyWorn or dirty track F giving an offset reading
- PossibleContact resistance at the pedal connector
- RareBent pedal bracket or binding mechanism distorting one track
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Easy · Often possible to do yourself.Typical cost: €20 – €350
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.