Brake Pressure Sensor Circuit Range/Performance Problem
The brake pressure sensor is not sending expected data to the control module.
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)
Your vehicle has a sensor that measures brake fluid pressure. If it's not working right, the truck can't tell how much pressure you're applying to the brakes, which could lead to poor braking performance.
What the computer is actually seeing
The brake control module is monitoring the brake pressure sensor's signal. It expects a range indicating pressure, such as 0.5 to 4.5 volts in normal operation. If the voltage is outside this range or fluctuates abnormally, the code sets.
What a healthy reading looks like
Expected brake pressure signal voltage is typically between 0.5V (no pressure) and 4.5V (maximum pressure).
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 brake fluid level in the reservoir; ensure it is within the recommended range.
- 2Inspect the wiring and connectors to the brake pressure sensor for damage or corrosion.
- 3Using a multimeter, measure the voltage at the brake pressure sensor connector; it should read between 0.5V and 4.5V during brake application.
- 4If the voltage is out of spec, replace the brake pressure sensor and retest the system. If normal, check for other brake system faults.
- 5If all values are normal, clear the code and see if it returns during a test drive.
Common causes
- Faulty brake pressure sensor
- Wiring issues (pinched, damaged, corroded)
- Connector problems (loose, corroded)
- Low brake fluid level
- Brake system leaks
Typical repair cost
$$ - $$$
Related codes
Frequently asked questions
Is it safe to drive with this code?
It's moderate severity; your brakes may not perform optimally. It's best to have it checked soon.
Will this code come back after clearing it?
If the brake pressure sensor is faulty or there's a wiring issue, it will likely return.
Why does this code appear with different symptoms?
This code can pair with issues in the braking system, affecting performance like ABS faults or poor pedal feel.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
Start guided diagnostic →