Brake Fluid Pump: Testing and Inspection

1. Turn ignition switch "OFF".
2. Disconnect motor connector.
3. Check motor for resistance. Between motor terminals, less than 1 ohm at 20°C (68°F) should be read and between the terminal and motor body (ground), 1 Mega ohms or more should be read.





4. Connect 12 volt battery positive terminal to motor connector terminal "1" and negative terminal to "2". Then, check if operational sound is heard from the motor.
5. If a faulty condition was found in Steps 3 or 4, replace the hydraulic unit.