ABS (Antilock Brake System)

BRAKE CONTROL: ANTI-LOCK BRAKE SYSTEM: C0278/11: Open or Short Circuit in ABS Solenoid Relay Circuit

DTC C0278/11 - Open or Short Circuit in ABS Solenoid Relay Circuit

DTC C0279/12 - Short to B+ in ABS Solenoid Relay Circuit

DESCRIPTION

This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the results of initial check are normal, the relay goes on.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT SKID CONTROL ECU TERMINAL VOLTAGE (+BS - GND1, GND2)





(a) Disconnect the skid control ECU connector.
(b) Measure the voltage.
Standard Voltage:





(c) Reconnect the skid control ECU connector.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
2. RECONFIRM DTC
(a) Clear the DTCs (Reading and Clearing Diagnostic Trouble Codes).
(b) Drive the vehicle at 10 km/h (6 mph) or more to activate initial check.
(c) Check if the same DTCs are detected.





B -- END
A -- REPLACE BRAKE ACTUATOR