P05FF
Brake Pressure Sensor and Brake Pedal Position Sensor Correlation
The brake pressure sensor and pedal position sensor disagree by more than the diagnostic tolerance - one indicates pedal action without the other showing pressure, or vice versa.
- Check engine light: Yes
- Emissions related: No
- Repair difficulty: medium
Common causes
Ordered by how often each turns out to be the cause.
- Sensor offset on one channelCommon
Parts involved
- Brake Pressure Sensor
- Brake Pedal Position Sensor A
P05FF is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.