C1155

C1155 BRAKE FLUID LEVEL SWITCH





Description
The brake fluid level switch converts the brake fluid level to an electric signal and transmits it to the ABS actuator and electric unit (control unit).




DTC Logic

DTC DETECTION LOGIC






DTC CONFIRMATION PROCEDURE
1.CHECK SELF-DIAGNOSIS RESULTS
Check the self-diagnosis results.





Is above displayed on the self-diagnosis display?
YES - Proceed to diagnosis procedure. C1155.
NO - Inspection End




Diagnosis Procedure
Regarding Wiring Diagram information, Electrical Diagrams.
1.CONNECTOR INSPECTION
1. Disconnect ABS actuator and electric unit (control unit) connector and brake fluid level switch connector.
2. Check the terminals for deformation, disconnection, looseness or damage.
Is the inspection result normal?
YES - GO TO 2
NO - Repair or replace as necessary.
2.CHECK HARNESS BETWEEN BRAKE FLUID LEVEL SWITCH AND ABS ACTUATOR AND ELECTRIC
UNIT (CONTROL UNIT)





1. Check continuity between ABS actuator and electric unit (control unit) harness connector E125 (A) terminal 8 and brake fluid level switch harness connector E21 (B) terminal 1.





2. Check continuity between ABS actuator and electric unit (control unit) connector E125 (A) terminal 8 and ground.





Is the inspection result normal?
YES - GO TO 3
NO - Repair or replace malfunctioning components.
3.CHECK BRAKE FLUID LEVEL SWITCH GROUND





Check continuity between brake fluid level switch connector E21 terminal 2 and ground.





Is the inspection result normal?
YES - GO TO 4
NO - Repair or replace malfunctioning components.
4.CHECK BRAKE FLUID LEVEL SWITCH
Perform the brake fluid level switch component inspection. C1155.
Is the inspection result normal?
YES - Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit
(control unit). Service and Repair.
NO - Replace brake fluid level switch.




Component Inspection
1.CHECK BRAKE FLUID LEVEL SWITCH





1. Turn ignition switch OFF.
2. Disconnect brake fluid level switch connector.
3. Check continuity between brake fluid level switch terminals.





Is the inspection result normal?
YES - Inspection End
NO - Replace brake fluid level switch.




Special Repair Requirement
1.ADJUSTMENT OF STEERING ANGLE SENSOR NEUTRAL POSITION
Always perform neutral position adjustment for the steering angle sensor when replacing the ABS actuator and electric unit (control unit). Description.
- GO TO 2
2.CALIBRATION OF DECEL G SENSOR
Always perform calibration of decel G sensor when replacing the ABS actuator and electric unit (control unit). Description.
- END