Nissan Terrano r20e. Manual — part 71
Diagnostic Procedure 12 (Unexpected pedal
action)
CHECK BRAKE PEDAL STROKE.
Check brake pedal stroke. Is stroke exces-
sively large?
No
E
Yes
Perform Preliminary
Check, refer to BR-65.
CHECK BRAKE PERFORMANCE
Disconnect ABS actuator and electric unit
connector and check whether brake is
effective.
Yes
E
No
Perform Preliminary Check,
refer to BR-65.
CHECK WARNING LAMP ACTIVATE.
Ensure warning lamp remains off while
driving.
OK
E
NG
Carry out self-diagnosis.
Refer to BR-59.
CHECK WHEEL SENSOR.
1. Check wheel sensor connector for ter-
minal damage or loose connection.
2. Perform wheel sensor mechanical
check.
Refer to Diagnostic Procedure 4,
BR-73.
OK
E
NG
Repair.
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector.
Reconnect ABS actuator and electric unit
harness connector. Then retest.
CAUTION:
Drive at low speed and brake smoothly to prevent
rear wheels locking.
SBR540A
YBR279
H
H
H
H
TROUBLE DIAGNOSES
BR-81
Diagnostic Procedure 13
SYMPTOM: ABS does not work.
Does the ABS warning lamp activate?
No
E
Yes
Carry out self-diagnosis.
Refer to BR-59.
Go to
in Diagnostic Procedure 12,
Note: ABS does not work when vehicle speed is under 10 km/h
(6 MPH).
Diagnostic Procedure 14
SYMPTOM: ABS works frequently.
CHECK WHEEL SENSOR.
1. Check wheel sensor connector for ter-
minal damage or loose connections.
2. Perform wheel sensor mechanical
check.
Refer to Diagnostic Procedure 4,
BR-73.
OK
E
NG
Repair.
CHECK FRONT AXLES
Check front axles for excessive loose-
ness. Refer to FA section (“Front Wheel
Bearing”, “ON-VEHICLE SERVICE”).
OK
E
NG
Repair.
Go to
in Diagnostic Procedure 12,
H
H
H
TROUBLE DIAGNOSES
BR-82
Electrical Components Inspection
WHEEL SENSOR
Check resistance for each sensor.
Resistance:
Front 0.9 - 1.1 k
Ω
Rear 1.44 - 1.76 k
Ω
G SENSOR
Condition
Resistance between ter-
minals
q
3
and
q
4
Continuity
Installed in vehicle
Approx. 1.5 k
Ω
Yes
Tilted as shown in figure
Approx. 5.1 k
Ω
No
YBR085
YBR280
TROUBLE DIAGNOSES
BR-83
General Specifications
Applied model
Wagon (LWB)
Hard Top (SWB)
Wagon (LWB)
Hard Top (SWB)
Without ABS
With ABS
Front brake
LD28VA
Brake model
Cylinder bore diameter
mm (in)
43 (1.69)
Pad
mm (in)
length x width x thickness
144.85 x 48.5 x 15.5
(5.70 x 1.90 x 0.61)
Rotor outer
mm (in)
diameter x thickness
27.7 x 26.1
(10.91 x 1.02)
Drum brake
LT28
Brake model
Cylinder bore diameter
mm (in)
23.8 (0.94)
22.0 (0.87)
20.6 (0.81)
Lining
mm (in)
Length x width x thickness
Leading
111 x 55 x 8.95 (4.37 x 2.17 x 0.35)
Trailing
114 x 55 x 3.95 (4.49 x 2.17 x 0.16)
Drum inner
mm (in)
Diameter
280 (11.02)
Master cylinder
mm (in)
Cylinder bore diameter
25.4 (1.0)
Control valve
Valve model
Load Sensing Valve
—
Split point [kPa (bar, kg/cm
2
, psi)] x
reducing ratio
Variable x 0.23
Variable x 0.15
—
Brake booster
Booster model
Lucas LSC 115 (8
″
+ 9
″
)
Diaphragm diameter
mm (in)
Primary: 203.2 (8)
Secondary: 228.6 (9)
Specified brake fluid
DOT 4
SERVICE DATA AND SPECIFICATIONS (SDS)
BR-84
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст