Motor Relay on Failure

DTC 52 MOTOR RELAY ON FAILURE
DIAGNOSIS:
^ Faulty motor
^ Faulty motor relay
^ Faulty harness connector

TROUBLE SYMPTOM:
^ ABS does not operate.
^ EBD does not operate.

WIRING DIAGRAM:





CHECK MOTOR RELAY IN ABSCM&H/U.
Disconnect the connector from ABSCM& H/U.
Measure the resistance between ABSCM&H/U terminals.
Terminals
No. 12 - No. 13:
Is the resistance more than 1 MOhms?
Replace the ABSCM&H/U.

CHECK MOTOR OPERATION.
Operate the sequence control.

Note: Use the diagnosis connector to operate sequence control.

Can motor revolution noise (buzz) be heard when carrying out the sequence control?
Replace the ABSCM&H/U.

CHECK POOR CONTACT IN CONNECTORS.
Turn the ignition switch to OFF.
Is there poor contact in connector between generator, battery and ABSCM&H/U?
Repair the connector.

CHECK ABSCM&H/U.
Connect all connectors.
Erase the memory.
Perform the inspection mode.
Read out the DTC.
Is the same DTC as in current diagnosis still being output?
Replace the ABSCM&H/U.

CHECK ANY OTHER DTC APPEARANCE.
Are other DTCs being output?
Proceed with the diagnosis corresponding to DTC.
^ A temporary poor contact.

^ Note: Although the ABS warning light remains illuminating at this point, this is a normal condition. Vehicle must be driven at approximately 12 km/h (7.46 MPH) or faster to turn off ABS warning light. Make sure that the ABS warning light goes off after driving vehicle.