Inspection Procedure

Check self-diagnosis results.

Is above displayed in the self-diagnosis display item? 

1. YES: GO TO 2.
2. NO: INSPECTION END.

1. Turn ignition switch OFF and disconnect brake fluid level switch connector and VDC/TCS/ABS control unit connector.
2. Reconnect connectors securely, then perform VDC/TCS/ABS control unit self-diagnosis again.

Does anything appear on self-diagnosis results display? 

1. YES: Poor connector connections. Repair or replace connectors.
2. NO: GO TO 3.

1. Disconnect combination meter connector M43.
2. Check continuity between brake fluid level switch harness connector and combination meter harness connector M43.
   BRAKE FLUID LEVEL SWITCH AND COMBINATION METER CONTINUITY
   
   

   Combination meter (harness connector M43)	Brake fluid level switch (harness connector E73)	Continuity
   51 (Y)	1 (Y)	Yes
   51 (Y)	Ground	No
   Ground	2 (B)	Yes

OK or NG 

1. OK: Brake fluid level switch is malfunctioning. Replace reservoir tank assembly Refer to "DISASSEMBLY AND ASSEMBLY ".
2. NG: If open or short in harness, repair or replace the harness.

Fig 1: Checking Continuity Between Brake Fluid Level Switch Harness Connector And Combination Meter Harness Connector M43

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