Inspection 12: Brake Fluid Level Switch Circuit

Inspection 12: Brake Fluid Level Switch Circuit

CAUTION: Check brake fluid level in brake reservoir tank before starting inspection.

INSPECTION PROCEDURE
1. CHECK SELF-DIAGNOSIS RESULTS
1. Check brake fluid level in brake reservoir tank. If brake fluid level is low, refill brake fluid.





2. Check self-diagnosis results.
Is above displayed on the self-diagnosis display?
YES >> GO TO 2.
NO >> INSPECTION END

2. CHECK CONNECTOR
1. Turn ignition switch OFF and disconnect brake fluid level switch connector E23 and ABS actuator and electric unit (control unit) connector E30, check terminal for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminal.
2. Reconnect connector and perform self-diagnosis.
OK or NG
OK >> INSPECTION END
NG >> GO TO 3.

3. CHECK BRAKE FLUID LEVEL SWITCH
1. Turn ignition switch OFF and disconnect brake fluid level switch connector E23.





2. Check continuity between brake fluid level switch connector E23 terminal 1 and 2.





OK or NG
OK >> GO TO 4.
NG >> Brake fluid level switch is malfunctioning. Replace reservoir tank. Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED. CONSULT-II / Self-Diagnosis

4. CHECK BRAKE FLUID LEVEL SWITCH HARNESS
1. Disconnect ABS actuator and electric unit (control unit) connector E30.





2. Check continuity between brake fluid level switch harness connector E23 and ABS actuator and electric unit (control unit) harness connector E30.





OK or NG
OK >> Connect connector securely and perform self-diagnosis.
NG >>
^ Repair or replace malfunctioning components.
^ Perform the self-diagnosis, and make sure that the result shows NO DTC IS DETECTED. CONSULT-II / Self-Diagnosis