Brake Fluid Pump: Testing and Inspection

Fig. 50 Pump Motor Terminal Identification.:

1. Disconnect hydraulic unit 12 pin connector, then check for continuity between terminal 7(B) and ground, Fig. 50.
2. If satisfactory, check for continuity between 7(B) and b(G) terminal of 2 pin connector.
3. If satisfactory, connect hydraulic unit electrical connectors.
4. Disconnect control unit connector and check for continuity between a(G) and ground.
5. If satisfactory, check for poor connection of the control unit connector, or faulty control unit.