Test 22 Hydraulic Unit (Pump Delivery Rate)

After dropping pressure twice without return delivery pump, the hydraulic unit pump will switch on briefly. Brake force display must drop below 135 lbs. (600 N). Brake pedal will give slightly. If Lamp 1 (Green) is on, test is okay. This is end of test sequence. If Lamp 2 (Red) light is on, see TROUBLE SHOOTING  in this article.