P2124Throttle/Pedal Position Sensor/Switch D Circuit Intermittent
- Generic OBD-II code · Powertrain
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- How the car detects it
- P2124 covers brief dropouts or spikes on pedal track D that come and go too quickly to count as a steady low or high fault. Ford documents it: special service messages 46829 (2015-2017 F-150) and 46880 (2017 Super Duty built up to late August 2017) tie P2124, alongside other pedal codes and wrench, ABS, airbag and hill descent lamps, to a pedal harness routed behind the bracket between brake booster and brake pedal, where it gets pinched and damaged. GM publishes no separate intermittent code for track D and catches such glitches through the 19-of-39 counter of P2120, P2122 and P2123. Inspect the harness while moving the pedal slowly. Effects range from a passing warning lamp to sudden loss of pedal response.
- What you may notice
- Warning lamps that come and go, sometimes several at once
- Brief loss of pedal response while driving
- Reduced power mode after repeated dropouts
- Likely causes
- LikelyPedal harness pinched or chafed by a misrouted path
- PossibleLoose terminal or weak pin tension at the pedal connector
- PossibleWorn spot on track D inside the pedal sensor
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Medium · Often possible to do yourself.Typical cost: €20 – €400
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.