P0124
Throttle/Pedal Position Sensor/Switch A Circuit Intermittent
What it means
P0124 means Throttle/Pedal Position Sensor/Switch A Circuit Intermittent.
Where it lives
For P0124, the sensor sits on the circuit this code reports. The description of P0124 reports a fault at the sensor.
Check these first
- A loose connector at throttle or pedal position sensor A
- Chafed wiring on the sensor A circuit
- A failing sensor A
- Debris in the throttle body or pedal assembly
- A poor ground for sensor A
What to do next
- Wiggle test the sensor A harness on live data
- Inspect the sensor A connector and wiring
- Clean the throttle body and pedal assembly
- Replace sensor A if the signal drops out
- Repair the wiring and clean the ground
- Clear the code and retest
Look up another code
Enter a full code or a symptom. Press / to search. How to read a code
Type a code above, or start from a symptom or a common code.
Updated
Generic SAE J2012 definition. Last updated 2026-10-10.