P2126Throttle/Pedal Position Sensor/Switch E Circuit Range/Performance
- Generic OBD-II code · Powertrain
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- Signal E is electrically intact but its value does not fit the situation. Ford's 2012 OBD summary uses P2126 for the second pedal sensor on Gen2 throttle systems: it sets when sensors D and E disagree by more than 1.1 degrees, as a non-MIL fault with the wrench lamp. Mitsubishi lists P2126 as accelerator pedal sensor E on the 2022 Outlander. Many newer systems report the same disagreement as P2138 instead. P2125 is the general circuit fault, P2127/P2128 are voltage below or above limits, P2129 covers dropouts. The vehicle usually stays drivable with softened pedal response; on Ford the MIL stays off and only the wrench lamp lights.
- What you may notice
- Wrench or engine warning lamp on
- Softened or delayed acceleration
- Idle may be raised when braking
- Likely causes
- LikelyWorn or dirty sensor track E giving offset readings
- PossibleContact resistance at the pedal connector
- RareShared reference or ground circuit shifting one signal
- Inspection (ITP)
- Can matter for the ITP: it concerns the emissions system.
- 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.