C1345
C1345, C1368Description
The brake ECU stores and corrects the difference in each individual part such as the stroke sensor, actuator solenoids, and stroke simulator solenoid. Perform initialization of linear solenoid valve and calibration if these parts are replaced.
The brake ECU receives shift position P signals from the HV ECU through CAN communication system.
The DTCs are cancelled when the result of linear valve offset learning is normal.
DTC Logic:
Diagnosis Procedure
CAUTION:
When replacing the brake actuator assembly, perform initialization of linear solenoid valve and calibration.
1.CHECK DTC
1. Clear the DTC.
2. Turn the ignition switch OFF.
3. Turn the ignition switch ON.
4. Check that the DTCs (Electronically Controlled Brake and hybrid control system) are recorded.
Result:
A >> GO TO 2.
B >> Inspect hybrid control system.
C >> Repair circuit indicated by output DTC.
2.PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION
Perform initialization of linear solenoid valve and calibration.
>> GO TO 3.
3.RECONFIRM DTC
1. Turn the ignition switch OFF.
2. Clear the DTC.
3. Turn the ignition switch ON.
4. Check if the same DTC is recorded.
Result:
YES >> INSPECTION END
NO >> Replace brake ECU.
Special Repair Requirement
1.ZERO ADJUSTMENT FOR EACH SENSOR AND OFFSET LEANING FOR LINEAR SOLENOID VALVE
After erasing brake ECU memories, perform zero adjustment of following sensors and initialization of linear solenoid valve.
^ Steering angle sensor: BRC-9, "PERFORM ZERO POINT OF STEERING ANGLE SENSOR: Description". Testing and Inspection
^ Yaw rate/side/decel G sensor: BRC-8, "PERFORM ZERO POINT OF YAW RATE/SIDE/DECEL G SENSOR: Description". Testing and Inspection
^ Brake stroke sensor: BRC-9, "PERFORM ADJUSTMENT OF STROKE SENSOR: Description". Perform Adjustment of Stroke Sensor
^ Linear solenoid valve: BRC-7, "PERFORM INITIALIZATION OF LINEAR SOLENOID VALVE AND CALIBRATION: Description". Perform Initialization of Linear Solenoid Valve and Calibration
>> END