Diagnosis Procedure

1. CONNECTOR INSPECTION
   1. Turn ignition switch OFF.
   2. Disconnect brake fluid level switch connector and combination meter connector.
   3. Check terminals for deformation, disconnection, looseness, and so on. If any malfunction is found, repair or replace terminals.
   4. Reconnect connector and perform self-diagnosis. Refer to "CONSULT-III FUNCTION (ABS) ".

   Is any item displayed on the self-diagnosis display? 

   YES: GO TO 2

   NO: Poor connection of connector terminals. Repair or replace connectors.

2. CHECK BRAKE FLUID LEVEL SWITCH

   Perform the brake fluid level switch component inspection. Refer to "COMPONENT INSPECTION ".

   Is the inspection result normal? 

   YES: GO TO 3

   NO: Replace brake fluid level switch. Refer to "DISASSEMBLY AND ASSEMBLY ".

3. CHECK BRAKE FLUID LEVEL SWITCH HARNESS
   1. Disconnect combination meter connector.
   2. Check continuity between combination meter connector M24 (A) terminal 27 and brake fluid level switch connector E24 (B) terminal 1.
   Fig 1: Checking Continuity Between Combination Meter And Brake Fluid Level Switch Connector Terminals
   Courtesy of NISSAN MOTOR CO., U.S.A.

   27 - 1: Continuity should exist. 

   3. Check continuity between combination meter connector M24 (A) terminal 27 and ground.

      27 - Ground: Continuity should not exist. 

      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 E24 (B) terminal 2 and ground.

Fig 2: Checking Continuity Between Brake Fluid Level Switch Connector E24 (B) Terminal 2 And Ground

Courtesy of NISSAN MOTOR CO., U.S.A.

2 - Ground: Continuity should exist. 

Is the inspection result normal? 

YES: Inspection End.

NO:

• Repair or replace malfunctioning components.
• Perform the self-diagnosis, and make sure that the result shows "NO DTC IS DETECTED".