C0240

Brake Pressure Sensor

Moderate severity

The ABS or stability control module has detected a fault in a brake pressure sensor. Pressure information is used by ESP and brake assist to determine driver intent and modulation pressure during regulation.

Common causes

Brake pressure sensor failed
One of the most commonly reported causes for this code — check this first.
high
Typical part cost: $170-880
Wiring or connector fault
A plausible cause — test and verify before replacing parts.
medium
Typical part cost: $170-880
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First things to check

1Confirm the code with a scan tool and check for additional related codes.
2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.

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Related codes

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Frequently asked questions

What does C0240 mean?

C0240 means "Brake Pressure Sensor". It is a generic OBD-II code that points to a fault in the chassis.

What are the most common causes of C0240?

brake pressure sensor failed; wiring or connector fault; air in brake system — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.

Can I keep driving with this code?

The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.

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