Valve Relay on Failure

DTC 51 VALVE RELAY ON FAILURE
DIAGNOSIS:
Faulty valve relay

TROUBLE SYMPTOM:
ABS does not operate.

WIRING DIAGRAM:





CHECK VALVE RELAY IN ABSCM&H/U.
Disconnect the connector from ABSCM& H/U.
Measure the resistance between ABSCM&H/U terminals.
Terminals No. 14 - No. 15:
Is the resistance more than 1 MOhms?
Replace the ABSCM&H/U.

CHECK POOR CONTACT IN CONNECTORS.
Is there poor contact in connectors 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.