Nissan Xterra. Instruction — part 111
UNEXPECTED PEDAL REACTION
BRC-101
< SYMPTOM DIAGNOSIS >
[TYPE 1]
C
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A
B
BRC
N
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UNEXPECTED PEDAL REACTION
Diagnosis Procedure
INFOID:0000000009482693
1.
CHECK BRAKE PEDAL STROKE
Check brake pedal stroke. Refer to
BR-15, "Inspection and Adjustment"
Is the stroke too large?
YES
>> • Bleed air from brake tube 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
BR-15, "Inspection and Adjustment"
(master cylinder),
NO
>> GO TO 2
2.
CHECK FUNCTION
Disconnect ABS actuator and electric unit (control unit) connector to deactivate ABS. Check if braking force is
normal in this condition. Connect connector after inspection.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check brake system.
BRC-102
< SYMPTOM DIAGNOSIS >
[TYPE 1]
THE BRAKING DISTANCE IS LONG
THE BRAKING DISTANCE IS LONG
Diagnosis Procedure
INFOID:0000000009482694
CAUTION:
The stopping distance on slippery road surfaces might be longer with the ABS operating than when
the ABS is not operating.
1.
CHECK FUNCTION
Turn ignition switch OFF and disconnect ABS actuator and electric unit (control unit) connector to deactivate
ABS. In this condition, check stopping distance. After inspection, connect connector.
Is the inspection result normal?
YES
>> Inspection End.
NO
>> Check brake system.
ABS FUNCTION DOES NOT OPERATE
BRC-103
< SYMPTOM DIAGNOSIS >
[TYPE 1]
C
D
E
G
H
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K
L
M
A
B
BRC
N
O
P
ABS FUNCTION DOES NOT OPERATE
Diagnosis Procedure
INFOID:0000000009482695
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-diagnosis. Refer to
BRC-104
< SYMPTOM DIAGNOSIS >
[TYPE 1]
PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
PEDAL VIBRATION OR ABS OPERATION SOUND OCCURS
Diagnosis Procedure
INFOID:0000000009482696
CAUTION:
Under the following conditions, ABS is activated and vibration is felt when brake pedal is lightly
depressed. However, this is normal.
• When shifting gears
• When driving on slippery road
• During cornering at high speed
• When passing over bumps or grooves [at approximately 50 mm (1.97 in) or more]
• When pulling away just after starting engine [at approximately 10 km/h (6 MPH) or higher]
1.
SYMPTOM CHECK 1
Check that there are pedal vibrations when the engine is started.
Do vibrations occur?
YES
>> GO TO 2
NO
>> Inspect the brake pedal.
2.
SYMPTOM CHECK 2
Check that there are ABS operation noises when the engine is started.
Do the operation noises occur?
YES
>> GO TO 3
NO
>> Perform self -diagnosis. Refer to
BRC-29, "CONSULT Function (ABS)"
.
3.
SYMPTOM CHECK 3
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES
>> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO
>> Inspection End.
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