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14. ABS Sensor
A: REMOVAL
1. FRONT ABS SENSOR
1) Disconnect front ABS sensor connector located in
engine compartment.
B4M0079A
2) Remove bolts which secure sensor harness to strut.
G4M0451
3) Remove bolts which secure sensor harness to body.
G4M0443
4) Remove bolts which secure front ABS sensor to
housing, and remove front ABS sensor.
CAUTION:
Be careful not to damage pole piece located at tip of
the sensor and teeth faces during removal.
Do not pull sensor harness during removal.
5) Remove front disc brake caliper and disc rotor from
housing after removing front tire.
6) Remove front drive shaft and housing and hub assem-
bly.
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14. ABS Sensor
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G4M0444
7) Remove tone wheel while removing hub from housing
and hub assembly.
CAUTION:
Be careful not to damage teeth faces of tone wheel
during removal.
2. REAR ABS SENSOR
1) Remove rear seat and disconnect rear ABS sensor con-
nector.
2) Remove rear sensor harness bracket from rear trailing
link and bracket.
G4M0445
3) Remove rear ABS sensor from rear back plate.
4) Remove rear tone wheel while removing hub from
housing and hub assembly.
CAUTION:
Be careful not to damage pole piece located at tip of
the sensor and teeth faces during removal.
Do not pull sensor harness during removal.
B: INSPECTION
1. ABS SENSOR
1) Check pole piece of ABS sensor for foreign particles or
damage. If necessary, clean pole piece or replace ABS
sensor.
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B4M0248
2) Measure ABS sensor resistance.
ABS sensor Terminal No. Standard
Front - LH 1 and 2
1.0±0.2 kΩ Front - RH 1 and 2
Rear - LH 1 and 2
Rear - RH 1 and 2
CAUTION:
If resistance is outside the standard value, replace
ABS sensor with new one.
NOTE:
Check ABS sensor cable for discontinuity. If necessary,
replace with a new one.
G4M0448
2. TONE WHEEL
1) Check tone wheel’s teeth (44 pieces) for cracks or
dents. If necessary, replace tone wheel with a new one.
2) Clearances (sensor gaps) should be measured one by
one to ensure tone wheel and speed sensor are installed
correctly.
ABS sensor clearance:
Front
0.9—1.4 mm (0.035—0.055 in)
Rear
0.7—1.2 mm (0.028—0.047 in)
NOTE:
If clearance is narrow, adjust by using spacer (Part No.
26755AA000).
If clearance is wide, check the outputted voltage then
replace ABS sensor or tone wheel if the outputted voltage
is outside the specification.
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B4M0118B
3. OUTPUT VOLTAGE
Output voltage can be checked by the following method.
Install resistor and condenser, then rotate wheel about 2.75
km/h (2 MPH) or equivalent.
NOTE:
Regarding terminal No., please refer to item 1. ABS SEN-
SOR.
C: INSTALLATION
1. FRONT ABS SENSOR
1) Install tone wheel on hub, then install housing on hub
assembly.
G4M0443
2) Temporarily install front ABS sensor on housing.
CAUTION:
Be careful not to strike ABS sensor’s pole piece and
tone wheel’s teeth against adjacent metal parts during
installation.
3) Install front drive shaft to hub spline.
[W1E0].>
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G4M0451
4) Install front ABS sensor on strut and wheel apron
bracket.
Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
5) Place a thickness gauge between ABS sensor’s pole
piece and tone wheel’s tooth face. After standard clearance
is obtained over the entire perimeter, tighten ABS sensor
on housing to specified torque.
ABS sensor standard clearance:
0.9—1.4 mm (0.035—0.055 in)
Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
CAUTION:
Check the marks on the harness to make sure that no
distortion exists. (RH: white, LH: yellow)
NOTE:
If the clearance is outside specifications, readjust.
2. REAR ABS SENSOR
1) Install rear tone wheel on hub, then rear housing on
hub.
G4M0445
2) Temporarily install rear ABS sensor on back plate.
CAUTION:
Be careful not to strike ABS sensor’s pole piece and
tone wheel’s teeth against adjacent metal parts during
installation.
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3) Install rear drive shaft to rear housing and rear differen-
tial spindle.
G4M0453
4) Install rear sensor harness on rear trailing link.
Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
5) Place a thickness gauge between ABS sensor’s pole
piece and tone wheel’s tooth face. After standard clearance
is obtained over the entire perimeter, tighten ABS sensor
on back plate to specified torque.
ABS sensor standard clearance:
0.7—1.2 mm (0.028—0.047 in)
Tightening torque:
32±10 N⋅m (3.3±1.0 kg-m, 24±7 ft-lb)
CAUTION:
Check the marks on the harness to make sure that no
distortion exists. (RH: white, LH: yellow)
NOTE:
If the clearance is outside specifications, readjust.
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15. Hydraulic Unit for ABS System
B4M0069A
1Connector
2Cap
3Motor relay
4Valve relay
5Hydraulic control unit
6Front-RH outlet
7Rear-LH outlet
8Rear-RH outlet
9Front-LH outlet
10Primary inlet
11Secondary inlet
12Bracket
Tightening torque: N⋅m (kg-m, ft-lb)
T1: 1.2±0.2
(0.125±0.025, 0.9±0.2)
T2: 18±5 (1.8±0.5, 13.0±3.6)
T3: 29±7 (3.0±0.7, 21.7±5.1)
T4: 32±10 (3.3±1.0, 24±7)
A: REMOVAL
1) Remove air intake duct.
2) Remove canister from engine compartment to facilitate
removal of hydraulic unit.
3) Disconnect brake pipes from hydraulic unit and plug
open joints to prevent entry of foreign particles.
G4M0455
4) Remove nuts and bolts which secure hydraulic unit, and
remove hydraulic unit from engine compartment.
CAUTION:
Hydraulic unit cannot be disassembled. Do not
attempt to loosen bolts and nuts.
Do not drop or bump hydraulic unit.
Do not turn the hydraulic unit upside down or place
it on its side.
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Page 784 of 2248
Be careful to prevent foreign particles from getting into
hydraulic unit.
When a new hydraulic unit is installed, apply a coat of
rust-preventive wax (Nippeco LT or GB) to bracket attach-
ing bolts after tightening.
Do not pull harness disconnecting harness connector.
B: INSPECTION
1. CHECKING HYDRAULIC UNIT
1) Check connected and fixed condition of connector.
2) Open hydraulic unit relay box and check for discontinu-
ity or short circuits.
Condition Terminal number Standard Diagram Terminal location
Valve relayTurning off
electricity.85—86 93—11 3Ω
G4M0456G4M0457
30—87a 0Ω
30—87
Turning on
electricity between
85 and 86.
(DC 12 V)30—87a
30—87 0Ω
Motor relayTurning off
electricity.85—86 72—88Ω
G4M0458G4M0459
30—87
Turning on
electricity between
85 and 86.
(DC 12 V)30—87 0Ω
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15. Hydraulic Unit for ABS System