Continuity Test
- Disconnect hydraulic unit connector. Using a DVOM, measure continuity between following wires: Yellow/Green wire and Green/Yellow wire; Brown wire and Green/Yellow wire; Black/White wire and Green/Yellow wire. See Figure . Continuity should be present in each measurement.
- If continuity is not present, replace hydraulic unit. If continuity is present, check wiring harness between ABS control unit and hydraulic unit. Repair or replace if necessary.