Nissan Pathfinder. Manual — part 263
EXCESSIVE OPERATION FREQUENCY
BRC-111
< SYMPTOM DIAGNOSIS >
[VDC/TCS/ABS]
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EXCESSIVE OPERATION FREQUENCY
Description
INFOID:0000000009177335
VDC function, TCS function, ABS function, EBD function or hill start assist function operates in excessive
operation frequency.
Diagnosis Procedure
INFOID:0000000009177336
1.
CHECK BRAKING FORCE
Check brake force using a brake tester.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check brake system.
2.
CHECK FRONT AND REAR AXLE
Check that there is no excessive looseness in front and rear axle.
• Front axle: Refer to
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Repair or replace malfunctioning components.
3.
CHECK WHEEL SENSOR
Check wheel sensor.
• Check installation and damage of wheel sensor.
• Check connection of wheel sensor harness connector.
• Check terminal of wheel sensor harness connector.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair installation or replace wheel sensor.
• Front wheel sensor: Refer to
BRC-118, "Removal and Installation - Front Wheel Sensor"
• Rear wheel sensor: Refer to
BRC-120, "Removal and Installation - Rear Wheel Sensor"
4.
CHECK SENSOR ROTOR
Check that there is no looseness, damage or foreign material on sensor rotor.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Repair installation or replace sensor rotor.
• Front sensor rotor: Refer to
BRC-122, "Removal and Installation - Front Sensor Rotor"
.
• Rear sensor rotor: Refer to
BRC-122, "Removal and Installation - Rear Sensor Rotor"
.
5.
CHECK WARNING LAMP TURNS OFF
Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn OFF approx. 1 second after
key switch is turned ON and stay in OFF status during driving.
CAUTION:
Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake
fluid is less than the specified level (brake fluid level switch is ON).
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Perform self-diagnosis result. Refer to
.
BRC-112
< SYMPTOM DIAGNOSIS >
[VDC/TCS/ABS]
UNEXPECTED BRAKE PEDAL REACTION
UNEXPECTED BRAKE PEDAL REACTION
Description
INFOID:0000000009177337
A malfunction of brake pedal feel (height or others) is detected when brake pedal is depressed.
Diagnosis Procedure
INFOID:0000000009177338
1.
CHECK FRONT AND REAR AXLE
Check that there is no excessive looseness in front and rear axle.
• Front axle: Refer to
• Rear axle: Refer to
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace malfunctioning components.
2.
CHECK DISC ROTOR
Check disc rotor runout.
• Front: Refer to
BR-11, "DISC ROTOR : Inspection"
• Rear: Refer to
BR-13, "DISC ROTOR : Inspection"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Refinish the disc rotor.
3.
CHECK BRAKE FLUID LEAKAGE
Check fluid leakage. Refer to
.
Is the inspection result normal?
YES
>> GO TO 4.
NO
>> Repair or replace malfunctioning components.
4.
CHECK BRAKE PEDAL
Check brake pedal. Refer to
.
Is the inspection result normal?
YES
>> GO TO 5.
NO
>> Adjust brake pedal. Refer to
.
5.
CHECK BRAKING FORCE
Check brake force using a brake tester.
Is the inspection result normal?
YES
>> GO TO 6.
NO
>> Check brake system.
6.
CHECK BRAKE PERFORMANCE
Disconnect ABS actuator and electric unit (control unit) connector so that ABS does not operate. Check that
brake force is normal in this condition. Connect harness connectors after checking.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check brake system.
THE BRAKING DISTANCE IS LONG
BRC-113
< SYMPTOM DIAGNOSIS >
[VDC/TCS/ABS]
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THE BRAKING DISTANCE IS LONG
Description
INFOID:0000000009177339
Brake stopping distance is long when ABS function is operated.
Diagnosis Procedure
INFOID:0000000009177340
CAUTION:
Brake stopping distance on slippery roads like a rough road, gravel road or snowy road may become
longer when ABS is operated than when ABS is not operated.
1.
CHECK BRAKING FORCE
Check brake force using a brake tester.
Is the inspection result normal?
YES
>> GO TO 2.
NO
>> Check brake system.
2.
CHECK BRAKE PERFORMANCE
Disconnect ABS actuator and electric unit (control unit) connector so that ABS does not operate. Check brake
stopping distance in this condition. Connect harness connectors after checking.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check brake system.
BRC-114
< SYMPTOM DIAGNOSIS >
[VDC/TCS/ABS]
ABS FUNCTION DOES NOT OPERATE
ABS FUNCTION DOES NOT OPERATE
Description
INFOID:0000000009177341
VDC function, TCS function, ABS function, EBD function or hill start assist function does not operate.
Diagnosis Procedure
INFOID:0000000009177342
CAUTION:
• VDC function, TCS function, ABS function, EBD function and hill start assist function never operate
when the vehicle speed is 10 km/h (6.2 MPH) or less. However, hill start assist function operates
when the vehicle speed is 0 km/h (0 MPH) (the vehicle is in stop status).
• VDC function and TCS function never operate when VDC OFF switch is operated (when VDC OFF
indicator lamp turns ON).
1.
CHECK ABS WARNING LAMP
Check that ABS warning lamp, brake warning lamp and VDC warning lamp turn ON and turn OFF approx. 1
second after key switch is turned ON. Check that ABS warning lamp, brake warning lamp and VDC warning
lamp and stay in OFF status during driving.
CAUTION:
Brake warning lamp turns ON when parking brake is operated (parking brake switch is ON) or brake
fluid is less than the specified level (brake fluid level switch is ON).
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Perform self-diagnosis result“”. Refer to
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