P2122
Throttle/Pedal Position Sensor/Switch D Circuit Low
2019-2024 BMW 3 Series G20 2.0L I4 Turbo B48
Critical SeverityPowertrainGeneric (SAE)
Description
Low voltage from accelerator pedal position sensor D.
Symptoms
- Limp mode
- Engine at idle
- Check engine light
Common Causes
- Failed APP sensor
- Short to ground in wiring
- Corroded connector
Diagnostic Steps
- Measure voltage at APP sensor D
- Check wiring
- Swap sensor if dual-assembly
Repair Notes
Replace accelerator pedal assembly or repair wiring.
Related Codes
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P2122 on Other Vehicles
Common Questions
What does code P2122 mean on a 2019-2024 BMW 3 Series G20?
P2122 stands for "Throttle/Pedal Position Sensor/Switch D Circuit Low". Low voltage from accelerator pedal position sensor D.
What are the symptoms of P2122 on a BMW 3 Series G20?
Common symptoms of P2122 include: Limp mode, Engine at idle, Check engine light.
What causes P2122 on a 2019-2024 BMW 3 Series G20?
Common causes of P2122 include: Failed APP sensor, Short to ground in wiring, Corroded connector.