Vehicle Stability Control System

BRAKE CONTROL: VEHICLE STABILITY CONTROL 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

The ABS solenoid relay is built into the master cylinder solenoid.
This relay supplies power to each ABS solenoid. After the ignition switch is turned ON, if the initial check is OK, the relay turns on.





WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. INSPECT FUSE (ABS NO. 2)





(a) Remove the ABS NO. 2 fuse from the engine room R/B and J/B.
(b) Measure the resistance of the ABS NO. 2 fuse.
Standard Resistance:
Below 1 Ohms
(c) Reinstall the ABS NO. 2 fuse.
NG -- CHECK FOR SHORTS IN ALL HARNESSES AND CONNECTORS CONNECTED TO FUSE AND REPLACE FUSE
OK -- Continue to next step.
2. INSPECT SKID CONTROL ECU CONNECTOR (+BS TERMINAL VOLTAGE)





(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.
3. CHECK HARNESS OR CONNECTOR (GND - BODY GROUND)





(a) Disconnect the skid control connectors.
(b) Measure the resistance.
Standard Resistance:





(c) Reconnect the skid control connectors.
NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR (GND CIRCUIT)
OK -- Continue to next step.
4. RECONFIRM DTC
(a) Clear the DTCs (Reading and Clearing Diagnostic Trouble Codes).
(b) Check if the same DTCs are recorded.





B -- END
A -- REPLACE MASTER CYLINDER SOLENOID