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SBR215B
Wheel Cylinder OverhaulNBBR0041ICheck all internal parts for wear, rust and damage. Replace if
necessary.
IPay attention so as not to scratch cylinder when installing pis-
tons.
SBR095A
InspectionNBBR0042DRUMNBBR0042S01Maximum inner diameter: 296.5 mm (11.67 in)
Out-of-roundness: 0.03 mm (0.0012 in) or less
IContact surface should be fine finished with No. 120 to 150
emery paper.
IUsing a drum lathe, lathe brake drum if it shows scoring, par-
tial wear or stepped wear.
IAfter brake drum has been completely reconditioned or
replaced, check drum and shoes for proper contact pattern.
SBR021A
LININGNBBR0042S02Check lining thickness.
Standard lining thickness:
6.1 mm (0.240 in)
Lining wear limit (A):
1.5 mm (0.059 in)
SBR092B
InstallationNBBR0043Always perform shoe clearance adjustment. Refer to BR-31.
1. Fit toggle lever to brake shoe (trailing side) with retainer ring.
ABR371
2. Apply brake grease to the contact areas (indicated by arrows
and hatching) shown at left.
REAR DRUM BRAKE
Wheel Cylinder Overhaul
BR-28
Page 418 of 2395
SBR217B
3. Shorten adjuster by rotating it.
IPay attention to direction of adjuster.
Wheel Screw Depression
Left Left-hand thread Yes
Right Right-hand thread No
SBR279B
4. Connect parking brake cable to toggle lever.
5. Install all parts.
Be careful not to damage wheel cylinder piston boots.
6. Check all parts are installed properly.
Pay attention to direction of adjuster assembly.
7. Install brake drum.
8. When installing new wheel cylinder or overhauling wheel
cylinder, bleed air. Refer to ªBleeding Brake Systemº, BR-8.
9. Adjust parking brake. Refer to ªAdjustmentº, ªPARKING
BRAKE CONTROLº, BR-31.
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REAR DRUM BRAKE
Installation (Cont'd)
BR-29
Page 419 of 2395
ComponentsNBBR0044
SBR667E
SBR390D
Removal and InstallationNBBR00451. To remove parking brake cable, first remove center console.
2. Disconnect warning lamp connector.
3. Remove bolts, slacken off and remove adjusting nut.
SBR391D
4. Disconnect cable. Refer to ªRemovalº, ªREAR DRUM BRAKEº,
BR-26.
InspectionNBBR00461. Check control lever for wear or other damage. Replace if nec-
essary.
2. Check wires for discontinuity or deterioration. Replace if nec-
essary.
3. Check warning lamp and switch. Replace if necessary.
4. Check parts at each connecting portion and, if deformed or
damaged, replace.
PARKING BRAKE CONTROL
Components
BR-30
Page 420 of 2395
SBR042D
AdjustmentNBBR00471. Adjust clearance between shoe and drum as follows:
a. Release parking brake lever and loosen adjusting nut.
b. Depress brake pedal fully at least 10 times with engine run-
ning.
2. Pull control lever4-5notches. Then adjust control lever by
turning adjusting nut.
SBR073D
3. Pull control lever with specified amount of force. Check lever
stroke and ensure smooth operation.
Number of notches:6-8
4. Bend warning lamp switchplate to ensure:
IWarning lamp comes on when lever is lifted ªAº notches.
IWarning lamp goes out when lever is fully released.
Number of ªAº notches: 1 or less
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PARKING BRAKE CONTROL
Adjustment
BR-31
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PurposeNBBR0087The Anti-Lock Brake System (ABS) consists of electronic and hydraulic components. It allows for control of
braking force so locking of the wheels can be avoided.
1) Improves proper tracking performance through steering wheel operation.
2) Eases obstacle avoidance through steering wheel operation.
3) Improves vehicle stability.
OperationNBBR0088IWhen the vehicle speed is less than 10 km/h (6 MPH) this system does not work.
IThe Anti-Lock Brake System (ABS) has a self-test function. The system turns on the ABS warning lamp
for 1 second each time the ignition switch is turned ªONº. After the engine is started, the ABS warning lamp
turns off. The system performs a test the first time the vehicle reaches 6 km/h (4 MPH). A mechanical noise
may be heard as the ABS performs this self-test. This is a normal part of the self-test feature. If a mal-
function is found during this check, the ABS warning lamp will stay on.
IWhile driving, a mechanical noise may be heard during ABS operation. This is a normal condition.
ABS Hydraulic CircuitNBBR0089
SBR859D
1. Inlet solenoid valve
2. Outlet solenoid valve
3. Reservoir4. Pump
5. Motor
6. Inlet valve7. Outlet valve
8. Bypass check valve
9. Damper
DESCRIPTIONABS
Purpose
BR-32
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System ComponentsNBBR0090
SBR447EB
SBR124B
System DescriptionNBBR0091SENSORNBBR0091S01The sensor unit consists of a gear-shaped sensor rotor and a sen-
sor element. The element contains a bar magnet around which a
coil is wound. The front sensors are installed on the front spindles
and the rear sensors are installed on the rear spindles. As the
wheel rotates, the sensor generates a sine-wave pattern. The fre-
quency and voltage increase(s) as the rotating speed increases.
SBR668E
CONTROL UNIT (BUILT-IN ABS ACTUATOR AND
ELECTRIC UNIT)
NBBR0091S02The control unit computes the wheel rotating speed by the signal
current sent from the sensor. Then it supplies a DC current to the
actuator solenoid valve. It also controls ON-OFF operation of the
valve relay and motor relay. If any electrical malfunction should be
detected in the system, the control unit causes the warning lamp
to light up. In this condition, the ABS will be deactivated by the
control unit, and the vehicle's brake system reverts to normal
operation. (For control unit layout, refer to ABS ACTUATOR AND
ELECTRIC UNIT, BR-33.)
SBR482E
ABS ACTUATOR AND ELECTRIC UNITNBBR0091S03The ABS actuator and electric unit contains:
IAn electric motor and pump
ITwo relays
ISix solenoid valves, each inlet and outlet for
Ð LH front
Ð RH front
Ð Rear
IABS control unit
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DESCRIPTIONABS
System Components
BR-33
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This component controls the hydraulic circuit and increases, holds
or decreases hydraulic pressure to all or individual wheels. The
ABS actuator and electric unit is serviced as an assembly.
ABS Actuator OperationNBBR0091S0301
Inlet solenoid
valveOutlet solenoid
valve
Normal brake operation OFF (Open) OFF (Closed)Master cylinder brake fluid pressure is directly
transmitted to caliper via the inlet solenoid valve.
ABS operationPressure hold ON (Closed) OFF (Closed)Hydraulic circuit is shut off to hold the caliper
brake fluid pressure.
Pressure
decreaseON (Closed) ON (Open)Caliper brake fluid is sent to reservoir via the out-
let solenoid valve. Then it is pushed up to the
master cylinder by pump.
Pressure increase OFF (Open) OFF (Closed)Master cylinder brake fluid pressure is transmitted
to caliper.
G SENSOR (4WD MODELS ONLY)NBBR0091S05The G sensor senses deceleration during braking to determine
whether the vehicle is being driven on a high road (asphalt road,
etc.) or a low road (snow-covered road, etc.). It then sends a
signal to the ABS control unit.
SBR456E
The reed switch turns on when it is affected by a magnetic field.
During sudden deceleration (braking on a high road), the weight
moves and the magnet in the weight moves away from the reed
switch. The magnetic field then diminishes and the reed switch
turns off.
DESCRIPTIONABS
System Description (Cont'd)
BR-34
Page 424 of 2395
Component Parts and Harness Connector
Location
NBBR0092
SBR669E
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DESCRIPTIONABS
Component Parts and Harness Connector Location
BR-35