Toyota
Nissan Versa
 Sedan Service Manual
Brakes » Brake control system (BRC) » C1155 BR Fluid level low
Diagnosis Procedure

Regarding Wiring Diagram information, refer to BRC "Wiring Diagram".

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

1.CONNECTOR INSPECTION

  1. Turn ignition switch OFF.
  2. Disconnect combination meter and brake fluid level switch connectors.
  3. Check connectors and terminals for deformation, disconnection, looseness or damage.

Is the inspection result normal?

YES >> GO TO 2

NO >> Repair or replace as necessary.

2.CHECK BRAKE FLUID LEVEL SWITCH

Perform the brake fluid level switch component inspection. Refer to BRC"Component Inspection".

Is the inspection result normal?

YES >> GO TO 3

NO >> Replace brake fluid level switch. Refer to BR "Exploded View".

3.CHECK BRAKE FLUID LEVEL SWITCH HARNESS

  1. Check continuity between combination meter connector and brake fluid level switch connector E40 terminal 1.               

    2.   Check continuity between combination meter connector and ground. 

Is the inspection result normal?

YES >> GO TO 4

NO >> Repair or replace malfunctioning components.

4.CHECK BRAKE FLUID LEVEL SWITCH GROUND CIRCUIT

Check continuity between brake fluid level switch connector E40 terminal 2 and ground. 

Is the inspection result normal?

YES >> Replace ABS actuator and electric unit (control unit). Refer to BRC "Removal and Installation"

NO >> Repair or replace malfunctioning components.

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 1 and 2.                                                                           

CHECK BRAKE FLUID LEVEL SWITCH

Is the inspection result normal?

YES >> Inspection End.

NO >> Replace brake fluid level switch. Refer to BR "Exploded View".

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