Abstract: A process for testing and the testing assembly for performing the process for testing an anti-lock brake system (ABS) for a vehicle after installation or work on the ABS without the need to test the vehicle for an ABS design braking event. The process involves engaging a testing unit computer to the electrical communication network of the vehicle and communicating with the Electronic Control Module (ECM) of the ABS. The vehicle is driven onto motorized rollers that can roll the wheels at low speeds without requiring vehicle movement. The testing unit computer makes a series of queries to the ECM to determine status of various parameters. Additionally, the portable computer is used to make directives to the ECM as far as cycling the ABS modulating valves such as the ABS hold solenoids and the ABS decay solenoids and the driver as far as braking or releasing the brake.