Continuity Test (RX7 & 929)
- Disconnect 12-pin hydraulic unit connector. Using a DVOM, check continuity between Black wire and ground. If there is continuity, check continuity between Black wire terminal at hydraulic unit connector and Green wire terminal at 2-pin hydraulic unit connector.
- If continuity exists, connect hydraulic unit connectors. If continuity is not present, replace wiring harness between control unit and body ground.
- Disconnect ABS control unit connector. Check continuity between Green wire of ABS control unit harness connector and ground. If continuity is present, check for poor connection of ABS control unit connector or faulty ABS control unit. If continuity is not present, repair open circuit.