Conditions for Setting the DTC

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2018 GMC Yukon XL, 2018 GMC Yukon, 2018 Chevrolet Tahoe, 2018 Chevrolet Suburban, and 2018 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.

The electronic brake control module detects the brake pedal is not applied and the brake pressure is greater than 1500 kPa (218 psi) for 2 s.
The electronic brake control module detects the vehicle speed is greater than 16 km/h (10 MPH), the brake pedal is applied for 122 s and the brake pressure is less than 620 kPa (90 psi).