ABS W/EBD & BA & TRAC & VSC System

DTC C0278/11 OPEN CIRCUIT IN ABS SOLENOID RELAY CIRCUIT

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The ABS solenoid relay supplies power to the ABS solenoid and TRAC solenoid.

The solenoid relay is turned on 1.5 seconds after the ignition switch is turned on (IG), and is turned off if an open or short in the solenoid is detected by self diagnosis performed when the vehicle starts running.

The ABS solenoid relay is housed in the skid control ECU in the ABS & TRACTION actuator assembly.

HINT: If a speed signal of 4 mph (6 km/h) or more is input to the skid control ECU, with the ignition switch on (IG) and the stop light switch off, the ECU performs self diagnosis of the motor and solenoid circuits.

Wiring Diagram:

Step 1:

Step 2-3:

INSPECTION PROCEDURE

NOTE: When replacing the ABS & TRACTION actuator assembly, perform zero point calibration. Calibration

HINT: When C1241/41 is output along with C0278/11, inspect and repair the trouble areas indicated by C1241/41 first.