Brake Fluid Level Switch System Inspection. Nissan Maxima

TROUBLE DIAGNOSIS FOR SELF-DIAGNOSTIC ITEMS

[VDC/TCS/ABS]

Brake Fluid Level Switch System Inspection

INSPECTION PROCEDURE

1.

SELF-DIAGNOSIS RESULT CHECK

EFS004HF

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

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.

Turn the ignition switch OFF and 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

NG

>> GO TO 3.

>> 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 connector E21 and the ABS actuator and electric unit

(control unit) connector E125.

ABS actuator and electric unit (control unit) connector E125

Brake fluid level switch connector

E21

38

38

Ground

OK or NG

OK

NG

>> GO TO 4.

>> Repair the circuit.

+

Ground

-

4.

CHECK BRAKE FLUID LEVEL SWITCH

Continuity

Continuity should exist.

Continuity should not exist.

Continuity should exist.

Check continuity between brake fluid level switch terminals + and -.

Continuity should not exist.

OK or NG

OK

NG

>> Perform self-diagnosis again. If the same results appear, replace ABS actuator and electric unit

(control unit). Refer to

BRC-96, "Removal and Installation" .

>> Replace brake fluid level switch.

Revision: May 2006

BRC-86

2007 Maxima