P2140Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2140 checks the second and third pedal tracks, E and F, against each other. As with P2139, no manufacturer explains its own trigger for this code, and FCA's emissions recall T21 for the 2004-2006 Dodge Sprinter just includes it in the list of codes that may follow the ECU reflash. GM's 2004-2005 trucks show what the comparison looks like in practice: their P2126 sets when sensor 2 differs from sensor 1 by more than 0.20 V and from the rescaled sensor 3 by more than 0.26 V, so the E-to-F term is part of a vote rather than a code of its own. Because track E is often scaled differently from F, a fault on a shared reference can shift one signal more than the other. Warning lamp and reduced pedal response follow.
- What you may notice
- Engine or wrench warning lamp on
- Reduced or delayed pedal response
- Likely causes
- LikelyTrack E or F of the pedal sensor worn or drifted
- PossibleShared 5 V reference or ground fault shifting one track
- PossibleContact resistance or moisture at the pedal connector
- 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.