Brake Fluid Level Switch System Inspection

INSPECTION PROCEDURE

1. SELF-DIAGNOSIS RESULT CHECK 
   1. Check the brake reservoir tank fluid level. If the level is low, add brake fluid.
   2. Erase the self-diagnosis results and check the self-diagnosis results.
      SELF-DIAGNOSIS RESULTS CHART
      
      

      Self-diagnosis results
      BR FLUID LEVEL LOW

   Is the above displayed in the self-diagnosis display items? 

   YES: GO TO 2.

   NO: Inspection End.

2. CONNECTOR INSPECTION 
   1. Disconnect the ABS actuator and electric unit (control unit) connector E125 and brake fluid level switch connector E21.
   2. Check the terminals for deformation, disconnection, looseness or damage.

   OK or NG 

   OK: GO TO 3.

   NG: Repair or replace as necessary.

3. CHECK THE HARNESS BETWEEN THE BRAKE FLUID LEVEL SWITCH AND THE ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT) 

   Check the continuity between the brake fluid level switch harness connector E21 and the ABS actuator and electric unit (control unit) harness connector E125.

   TERMINALS CONTINUITY CHART
   
   

   ABS actuator and electric unit (control unit) harness connector E125	Brake fluid level switch harness connector E21	Continuity
   8	1	Yes
   8	Ground	No
   Ground	2	Yes

   OK or NG 

   OK: GO TO 4.

   NG: Repair the circuit.

4. CHECK BRAKE FLUID LEVEL SWITCH 

   Check continuity between brake fluid level switch terminals 1 and 2.

   Continuity should not exist. 

   OK or NG 

   OK: Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit (control unit). Refer to "REMOVAL AND INSTALLATION ".

   NG: Replace brake fluid level switch.