Brake Pedal Position Sensor Circuit Range/Performance Problem
There’s a problem with the brake pedal position sensor's range or performance.
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 brake pedal position sensor measures how far down the brake pedal is pressed. If it doesn’t register correctly, the computer can’t control things like the cruise control or anti-lock brakes properly.
What the computer is actually seeing
The brake pedal position sensor typically sends a voltage signal between 0.5 to 4.5 volts. If it falls outside this range when the pedal is pressed or released, the code sets.
What a healthy reading looks like
0.5V at rest, up to 4.5V when fully pressed, with a linear response in between.
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.
- 11. Check the brake fluid level. Ensure it’s within specifications. If low, top it up and recheck the code.
- 22. Inspect the brake pedal position sensor connector and wiring for damage or corrosion. Repair or clean connectors as necessary.
- 33. Measure the voltage at the brake pedal position sensor with the key on and engine off. It should be between 0.5 and 4.5 volts. If not, replace the sensor.
- 44. If the sensor checks out, check the vehicle's main ground connections and battery voltage. Ensure battery voltage is between 12.4V to 12.6V with the engine off. Clean and secure any loose grounds.
- 55. Clear the code and perform a test drive. Monitor how the brake system and cruise control functions after clearing. If the code does not return after a drive cycle, the issue may be resolved.
Common causes
- Faulty brake pedal position sensor
- Damaged wiring or connectors
- Corrosion in the connector terminals
- Brake fluid leak affecting pedal movement
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It is generally safe to drive, but be cautious. Issues with cruise control and anti-lock brakes might affect handling.
Will this code come back after clearing it?
If the underlying problem isn't fixed, yes, the code will likely return.
Why does it pair with other codes?
Other related codes can indicate more serious issues with braking systems or sensors that also impact performance.
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