Brake Pedal Position Sensor A Circuit High
The brake pedal position sensor signal is too high.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The computer thinks the brake pedal is pressed down too much, which can mess with your brake system's behavior.
What the computer is actually seeing
The brake pedal position sensor sends a voltage signal to the computer. Typically, this should be around 0.5V when the pedal is not pressed and increase to about 4.5V when fully pressed. If it sees a signal above 4.5V, it triggers this fault code.
What a healthy reading looks like
Brake pedal position sensor signal should be between 0.5V (released) and 4.5V (fully pressed).
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check the brake fluid level; it should be between the min and max marks.
- 2Inspect wiring and connectors for damage or corrosion, especially at the pedal assembly.
- 3Using a multimeter, check the voltage at the brake pedal position sensor. It should read between 0.5V and 4.5V. If it's over 4.5V, check for a short in the wiring.
- 4If the sensor readings are normal, check for issues in the brake control module itself.
Common causes
- Faulty brake pedal position sensor
- Wiring shorts or opens in the sensor circuit
- Dirty or corroded connectors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's not recommended to drive long distances, as it can affect braking performance.
Will this code come back after clearing it?
If the issue is unresolved, it will likely return after a short drive.
Why does this code often pair with C024B?
C024B indicates a similar sensor issue but with a different circuit, showing a pattern of sensor-related problems.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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