Nissan Sentra. Manual - part 178

EXCESSIVE ABS FUNCTION OPERATION FREQUENCY

BRC-99

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

EXCESSIVE ABS FUNCTION OPERATION FREQUENCY

Diagnosis Procedure

INFOID:0000000009757892

1.

CHECK START

Check front and rear brake force distribution using a brake tester.
Is the inspection result normal?

YES

>> GO TO 2

NO

>> Check brake system.

2.

CHECK FRONT AND REAR AXLE

Make sure that there is no excessive play in the front and rear axles. Refer to front: 

FAX-6, "Inspection"

, rear:

RAX-5, "Inspection"

.

Is the inspection result normal?

YES

>> GO TO 3

NO

>> Repair or replace malfunctioning components.

3.

CHECK WHEEL SENSOR AND SENSOR ROTOR

Check the following:

• Wheel sensor installation for damage

• Sensor rotor installation for damage

• Wheel sensor connector

• Wheel sensor harness
Is the inspection result normal?

YES

>> GO TO 4

NO

>> • Replace wheel sensor 

BRC-106, "FRONT WHEEL SENSOR : Removal and Installation"

 or

BRC-107, "REAR WHEEL SENSOR : Removal and Installation"

.

• Replace sensor rotor 

BRC-109, "FRONT SENSOR ROTOR : Removal and Installation"

 or 

BRC-

109, "REAR SENSOR ROTOR : Removal and Installation"

.

• Repair harness.

4.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp is turned off after the ignition switch is turned ON or when driving. 
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Perform self diagnostic result. Refer to 

BRC-31, "CONSULT Function (ABS)"

.

BRC-100

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

UNEXPECTED PEDAL REACTION

UNEXPECTED PEDAL REACTION

Diagnosis Procedure

INFOID:0000000009757893

1.

CHECK BRAKE PEDAL STROKE

Check brake pedal stroke. Refer to 

BR-15, "Adjustment"

.

Is the stroke too big?

YES

>> • Bleed air from brake line and hose. Refer to 

BR-17, "Bleeding Brake System"

.

• Check brake pedal, brake booster, and master cylinder for mount play, looseness, brake system

fluid leakage, etc. Refer to brake pedal: 

BR-15, "Adjustment"

 or brake booster assembly 

BR-11,

"Inspection"

.

NO

>> GO TO 2

2.

CHECK ABS FUNCTION

1. Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS.

2. Check if braking force is normal in this condition.

3. Reconnect connector after inspection.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Check brake system.

THE BRAKING DISTANCE IS LONG

BRC-101

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

C

D

E

G

H

I

J

K

L

M

A

B

BRC

N

O

P

THE BRAKING DISTANCE IS LONG

Diagnosis Procedure

INFOID:0000000009757894

CAUTION:

The stopping distance on slippery road surfaces might be longer with the ABS operating than when

the ABS is not operating.

1.

CHECK ABS FUNCTION

1. Turn ignition switch OFF.

2. Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS.

3. Check stopping distance.

4. After inspection, reconnect connector.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Check brake system.

BRC-102

< SYMPTOM DIAGNOSIS >

[VDC/TCS/ABS]

ABS FUNCTION DOES NOT OPERATE

ABS FUNCTION DOES NOT OPERATE

Diagnosis Procedure

INFOID:0000000009757895

CAUTION:

ABS does not operate when speed is 10 km/h (6 MPH) or lower.

1.

CHECK ABS WARNING LAMP DISPLAY

Make sure that the ABS warning lamp turns OFF after ignition switch is turned ON or when driving.
Is the inspection result normal?

YES

>> Inspection End.

NO

>> Perform self diagnostic result. Refer to 

BRC-31, "CONSULT Function (ABS)"

.