C0279

BRAKE CONTROL: VEHICLE STABILITY CONTROL SYSTEM: C0278/11: Open in ABS Solenoid Relay Circuit

DTC C0278/11 - Open in ABS Solenoid Relay Circuit

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

DESCRIPTION

The ABS solenoid relay is built in the brake actuator assembly. This relay supplies power to each ABS solenoid. If the initial check is OK after the ignition switch is turned to the ON position, the relay will turn on.

WIRING DIAGRAM

INSPECTION PROCEDURE

PROCEDURE

1. INSPECT ABS NO. 1 FUSE
(a) Remove the ABS NO.1 fuse from the FL block.

(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPLACE ABS NO. 1 FUSE
OK -- Continue to next step.
2. INSPECT SKID CONTROL ECU CONNECTOR
(a) Disconnect the skid control ECU connector.
(b) Turn the ignition switch to the ON position.

NG -- INSPECT SKID CONTROL ECU CONNECTOR
OK -- Continue to next step.
3. RECONFIRM DTC
HINT: This code is detected when a problem is determined in the brake actuator assembly.
The ABS solenoid relay is in the brake actuator assembly.
Therefore, solenoid relay circuit inspection and relay unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the brake actuator assembly.
(a) Clear the DTCs .
(b) Turn the ignition switch to the ON position.
(c) Check if the same DTCs are recorded .
Result:

NOTE: When replacing the brake actuator assembly, perform zero point calibration. Calibration

B -- END
A -- REPLACE BRAKE ACTUATOR ASSEMBLY
4. INSPECT SKID CONTROL ECU CONNECTOR
(a) Disconnect the skid control ECU connector.

(b) Measure the resistance according to the value(s) in the table below.
Standard resistance:

NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.
5. RECONFIRM DTC
HINT: This code is detected when a problem is determined in the brake actuator assembly.
The ABS solenoid relay is in the brake actuator assembly.
Therefore, solenoid relay circuit inspection and relay unit inspection cannot be performed. Be sure to check if the DTC code is output before replacing the brake actuator assembly.
(a) Clear the DTCs .
(b) Turn the ignition switch to the ON position.
(c) Check if the same DTCs are recorded .
Result:

HINT: It is suspected that the DTCs were output due to a poor connection of the connector terminal.
NOTE: When replacing the brake actuator assembly, perform zero point calibration. Calibration

B -- END
A -- REPLACE BRAKE ACTUATOR ASSEMBLY