P2122
Throttle/Pedal Position Sensor/Switch D Circuit Low
P2122 is an OBD-II diagnostic trouble code meaning: Throttle/Pedal Position Sensor/Switch D Circuit Low. Common causes: open or short circuit in the sensor circuit, poor contact in the sensor connector. Estimated repair cost: $17–56.
Symptoms
- Floating idle speed
- Acceleration problems
- Switching to emergency mode
- Check Engine Light Illuminates
- Reduced engine power
Causes
- Open or short circuit in the sensor circuit
- Poor contact in the sensor connector
- Gas pedal position sensor malfunction
- Circuit Grounding Problems
- Engine ECU malfunction
How to Fix
- Check the integrity of the sensor wiring and connectors
- Check the voltage and resistance in the sensor circuit
- Clean sensor connector contacts
- Replace the gas pedal position sensor if necessary
- Check and reflash the ECU if necessary
Related codes
Error P2122 by Vehicle Brand
FAQ
What does the P2122 code mean?
P2122 is an OBD-II diagnostic trouble code that indicates: Throttle/Pedal Position Sensor/Switch D Circuit Low
What causes a P2122 error code?
The most common causes of P2122 include: Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Gas pedal position sensor malfunction; Circuit Grounding Problems.
How do I fix a P2122 diagnostic trouble code?
To fix P2122: Check the integrity of the sensor wiring and connectors. Check the voltage and resistance in the sensor circuit. Clean sensor connector contacts. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with P2122?
Limited driving only, diagnose soon
How much does it cost to fix P2122?
The estimated repair cost for P2122 is $17–56. Actual cost depends on your vehicle, location, and labor rates.
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