Abstract: A method of operating a brake system for a motor vehicle, the brake system has a parking brake device and actuating the parking brake device for generating a parking braking force on a wheel of the motor vehicle is only permitted if a speed value falls below a speed threshold value. As such, the speed value is determined from a measured speed value corresponding at least temporarily to a speed of the motor vehicle. If the measured speed value falls below the speed value, the speed value is made to track the measured speed value with a speed gradient limited to a speed gradient limit value.

Abstract: A test arrangement for functional testing of a brake control system in a vehicle, in which either a first parking brake system or a second parking brake system can be installed, wherein the brake control system has a control device with a first control module for controlling the first parking brake system, and has a second control module for controlling the second parking brake system, and wherein either the first control module or the second control module can be activated by means of a coding unit, in order to control the associated parking brake system, while the non-activated control module remains inoperative. The brake control system has a test unit with which a swap plausibility check can be carried out, which can be used to check whether the correct control module for the installed parking brake system is activated.