P2140 code meaning
Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation
Powertrain system Generic code P21xx codes Check engine light
What P2140 means
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.
P2140 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyEasy, DIY possible
- Typical labor0.3 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of P2140
- Engine or wrench warning lamp on
- Reduced or delayed pedal response
Common causes of P2140
- Most 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
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Throttle position sensorAccelerator pedal position sensor
What each part of P2140 means
| P | Powertrain system: engine, fuel system, ignition, emissions and transmission. |
| 2 | Generic code (second SAE range): it means the same on every make. |
| 1 | Area: fuel and air metering. |
| 40 | The exact fault in that area. |
What to do next
- Note P2140 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about P2140
What does P2140 mean?
P2140 means "Throttle/Pedal Position Sensor/Switch E/F Voltage Correlation". P2140 checks the second and third pedal tracks, E and F, against each other. It is a generic code, so it means the same on every make.
Is it safe to drive with P2140?
Drive gently and only to a workshop. With P2140 the car can go into limp mode (reduced power) to protect itself.
Will P2140 fail an emissions test?
Yes, it can. P2140 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is P2140 to fix?
Difficulty: easy. A typical repair takes 0.3 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will P2140 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.