Downloaded from www.Manualslib.com manuals search engine 2D-5 Wheels and Tires:
Radial Tire Lead / Pull DescriptionS7RS0B2401006
“Lead / Pull” is the deviation of the vehicle from a straight
path on a level road even with no pressure on the
steering wheel.
Lead is usually caused by the following conditions.
• Improper tire and wheel alignment.
• Uneven brake assemblies.
• Tire construction.
The way in which a tire is built can produce lead in a
vehicle. An example of this is placement of the belt. Off
center belts on radial tires can cause the tire to develop
a side force while rolling straight down the road. If one
side of the tire has a little larger diameter than the other,
the tire will tend to roll to one side. This will develop a
side force which can produce vehicle lead.
The procedure in the figure (Lead Diagnosis) should be
used to make sure that wheel alignment is not mistaken
for tire lead.
• Part of the lead diagnosis procedure is different from the proper tire rotation pattern currently in the owner
and service manuals. If a medium to high mileage tire
is moved to the other side of the vehicle, be sure to
check that ride roughness has not developed.
• Rear tires will not cause lead.
Balancing Wheels DescriptionS7RS0B2401007
There are two types of wheel an d tire balance: static and
dynamic. Static balance, as shown in figure, is the equal
distribution of weight around the wheel. Wheels that are
statically unbalanced cause a bouncing action called
tramp. This condition will eventually cause uneven tire
wear.
Dynamic balance, as shown in figure, is the equal
distribution of weight on each side of the wheel
centerline so that when the tire spins there is no
tendency for the assembly to move from side to side.
Wheels that are dynamically unbalanced may cause
shimmy.
1. Heavy spot wheel tramp [A]: Before correction
2. Balance weights addition point [B]: Corrective weights
3. C/L of spindle
1. Heavy spot wheel shimmy [C]: Before correction
2. Balance weights addition point [D]: Corrective weights
3. C/L of spindle
I2RH01240008-01
I2RH01240009-01
Downloaded from www.Manualslib.com manuals search engine Brake Control System and Diagnosis: 4A-5
If deterioration of rubber is evident, disassemble all
hydraulic parts and wash with alcohol. Dry these parts
with compressed air before assembly to keep alcohol out
of the system. Replace all rubber parts in the system,
including hoses. Also, when working on the brake
mechanisms, check for fluid on the linings.
If excessive fluid is found, replace the pads. If master cylinder piston seals
are satisfactory, check for
leakage or excessive heat co nditions. If leakage is not
found, drain fluid, flush with brake fluid, refill and bleed
system.
The system must be flushed if there is any doubt as to
the grade of fluid in the system or if fluid has been used
which contained parts that have been subjected to
contaminated fluid.
Brakes Symptom DiagnosisS7RS0B4104002
Condition Possible cause Correction / Reference Item
Not enough braking force Brake oil leakage from brake lines Locate leaking point and repair.
Brake disc or brake pad stained with oil Clean or replace.
Overheated brakes Determine cause and repair.
Badly worn brake pad Replace.
Malfunctioning caliper assembly Repair or replace.
Malfunctioning brake booster Check system and replace assembly.
Malfunctioning brake master cylinder Check system and replace as necessary.
Air in system Bleed system.
Malfunctioning ABS (ESP ®). Check system and replace as necessary.
Brake pull (Brakes not
working in unison) Brake pad and disc are wet with water or
stained with oil in some brakes Clean or replace.
Disc is out of round in some brakes Replace.
Tires are inflated unequally Inflate equally.
Disturbed front wheel alignment Adjust as prescribed.
Unmatched tires on same axle Tires with approximately the same amount of
tread should be used on the same axle.
Restricted brake pipes or hoses Check for soft hoses and damaged lines.
Replace with new hoses and new double-
walled steel brake tubing.
Malfunctioning caliper assembly Caliper should slide.
Check for stuck or sluggish pistons and proper
lubrication of caliper slide pin.
Loose suspension parts Check all suspension mountings.
Loose calipers Check and torque bolts to specifications.
Noise (High pitched
squeak without brake
applied) Contact wear indicator to brake disc
Replace brake pads.
Worn brake pad Replace brake pads.
Excessive pedal travel
(Pedal stroke too large) Partial brake system failure
Check brake systems and repair as necessary.
Brake fluid leaking Repair the leaking point and bleed air.
Air in system (soft / spongy pedal) Bleed system.
Brake locked Malfunctioning ABS (ESP®) Check system referri ng to “ABS Check in
Section 4E” or “Electronic Stability Program
System Check in Section 4F”.
Dragging brakes (A very
light drag is present in all
brakes immediately after
pedal is released.) Master cylinder pistons not returning
correctly
Replace master cylinder.
Restricted brake pipes or hoses Check for soft hoses or damaged pipes and
replace with new hoses and/or new brake
piping.
Incorrect parking brake adjustment on
rear brakes Check and adjust to correct specifications.
Weakened or broken return springs in
rear brakes. Replace.
Sluggish parking brake cables or linkage Repair or replace.
Brake caliper piston sticking Repair as necessary.
Badly worn piston seal in caliper Replace piston seal.
Improper brake pedal free height Check brake pedal free height.
Downloaded from www.Manualslib.com manuals search engine 4A-6 Brake Control System and Diagnosis:
Pedal pulsation (Pedal
pulsates when depressed
for braking)Damaged or loose wheel bearings
Replace wheel bearings.
Distorted steering knuckle or rear wheel
spindle Replace knuckle or rear wheel spindle.
Excessive disc lateral runout Check per instructions. If not within
specifications, replace or machine disc.
Parallelism between brake pad and disc
not within specifications Check per instructions. If not within
specifications, replace or machine disc.
Brake caliper piston sticking Repair as necessary.
Braking noise Worn or distorted brake pad Replace pads.
Loose front wheel bearings Replace wheel bearings.
Distorted backing plates or loose
mounting bolts Replace or retighten securing bolts.
Contact wear indicator to brake disc Replace brake pad.
Brake warning light lights
after engine start Parking brake applied
Release parking brake and check that brake
warning light turns off.
Insufficient amount of brake fluid Investigate leaky point, correct it and add
brake fluid.
Brake fluid leaking Investigate leaky point, correct it and add
brake fluid.
Brake warning light circuit faulty Repair circuit.
Malfunctioning EBD system Check system referring to “EBD Warning Light
(Brake Warning Light) Comes ON Steady in
Section 4E”.
Brake warning light turns
on when brake is applied Brake fluid leaking
Investigate leaky point, correct it and add
brake fluid.
Insufficient amount of brake fluid Investigate leaky point, correct it and add
brake fluid.
Brake warning light fails
to turn on even when
parking brake is applied Brake warning light circuit faulty
Replace bulb or repair circuit.
ABS warning light or
ESP
® warning light turns
on after engine start Malfunctioning ABS (ESP
®) Check system referri ng to “ABS Check in
Section 4E” or “Electronic Stability Program
System Check in Section 4F”.
ABS warning light or
ESP
® warning light turns
on when brake is applied Malfunctioning ABS (ESP
®) Check system referri ng to “ABS Check in
Section 4E” or “Electronic Stability Program
System Check in Section 4F”.
ABS warning light or
ESP
® warning light does
not turn on for 2 sec. after
ignition switch has turned
ON Bulb burnt out
Replace bulb.
Malfunctioning ABS (ESP ®) Check system referri ng to “ABS Check in
Section 4E” or “Electronic Stability Program
System Check in Section 4F”.
ABS warning light flashes New ABS hydraulic unit / control module
assembly installed. Perform “ABS Hydraulic
Unit Operation Check
in Section 4E”.
Condition Possible cause Correction / Reference Item
Downloaded from www.Manualslib.com manuals search engine 4A-18 Brake Control System and Diagnosis:
10) Check pedal height and play referring to “Brake Pedal Free Height Inspection” and “Brake Pedal
Play Inspection”.
11) Check each installed part for fluid leakage and perform brake test.
12) Evacuate and charge refrigerant by referring to “Evacuating of A/C Syst em” and “Procedure of
Charging” under “Operation Procedure for
Refrigerant Charge in Section 7B” or “Operation
Procedure for Refrigerant Charge in Section 7B”.
Brake Booster Inspection and AdjustmentS7RS0B4106018
Installation Position of Push Rod
If push rod clevis (1) has b een removed, adjust distance
between booster installation surface (without including
packing) and the center of clevis pin hole to standard
value “a” and tighten nut (a) to specified torque. Distance “a” between center of booster clevis pin
hole and booster surface
Standard:
114.5 – 115.5 mm (4.51 – 4.54 in.)
Tightening torque
Clevis lock nut (a): 15 N·m (1.5 kgf-m, 11.0 lb-ft)
Specifications
Tightening Torque SpecificationsS7RS0B4107001
NOTE
The specified tightening torque is also described in the following.
“Front Brake Hose / Pipe Construction”
“Rear Brake Hose / Pipe Construction”
“Brake Pedal Components”
“Master Cylinder Components”
“Brake Booster Components”
Reference:
For the tightening torque of fastener not specified in this
section, refer to “Fasteners Information in Section 0A”.
Special Tools and Equipment
Recommended Service MaterialS7RS0B4108001
NOTE
Required service material is also described in the following.
“Master Cylinder Components”
I4RS0A410022-01
Fastening part Tightening torque
Note
N ⋅mkgf-mlb-ft
Master cylinder fixing nut 15 1.5 11.0 )
Brake pipe flare nut for M10 16 1.6 11.5 )
Brake pipe flare nut for M12 19 1.9 14.0 )
Reservoir bolt 2.5 0.25 2.0 )
Booster mounting nut 13 1.3 9.5 )
Brake pedal bracket mounting bolt 13 1.3 9.5 )
Clevis lock nut 15 1.5 11.0 )
Downloaded from www.Manualslib.com manuals search engine Rear Brakes: 4C-1
Brakes
Rear Brakes
Repair Instructions
Rear Disc Brake ComponentsS7RS0B4306001
(d)
(c)
(a)
(a)
(a)16171413
2
1
15 2 19
12
117
7
3
7
4
20 20
5
10
9
8
(b)
18
6
24
23
22
21
I7RS0B430001-01
1. Caliper
11. Brake caliper carrier21. Shaft cover
: Apply rubber grease.
2. Caliper pin bolt 12. Caliper carrier bolt22. Lever
3. Boot 13. Rear caliper bleeder plug23. Washer
4. No.1 slide pin : Apply rubber grease. 14. Bleeder plug cap
24. Parking nut
5. Brake pad 15. Brake flexible hose: 23 N⋅m (2.3 kgf-m, 17.0 lb-ft)
6. Return spring 16. Flexible hose joint bolt: 27 N⋅m (2.7 kgf-m, 19.5 lb-ft)
7. Pad spring 17. Hose washer: 60 N⋅m (6.0 kgf-m, 43.5 lb-ft)
8. Disk brake piston : Apply brake fluid to contact surface of cylinder. 18. Brake disc
: 9 N⋅m (0.9 kgf-m, 6.5 lb-ft)
9. Piston seal : Apply small amount of brake fluid to all around part of piston seal. 19. No.2 slide pin
: Apply rubber grease. : Do not reuse.
10. Cylinder boot : Apply small amount of brake fluid. 20. Pad shim
Downloaded from www.Manualslib.com manuals search engine 4C-2 Rear Brakes:
Rear Disc Brake Pad Removal and InstallationS7RS0B4306002
NOTE
When replacing brake pad, replace it on the
right and left.
Removal1) Hoist vehicle and remove wheel.
2) Release parking brake lever.
3) Remove caliper pin bolts (1).
4) Remove caliper (2) from caliper carrier.
NOTE
Hang removed caliper (2) with a wire hook or
the like so as to prevent brake hose from
bending and twisting excessively or being
pulled.
Don’t operate brake pedal with brake pads
removed.
5) Remove brake pads (1) and pad springs. Installation
1) Turn brake caliper piston clockwise to obtain clearance between brake disc and pads.
Special tool
(A): 09945–16060
2) Clean (and degrease) pad spring installation face (3) of caliper carrier (1).
3) Attach pad springs (2) to caliper carrier (1).
4) Before installing brake p ad shims (1), apply small
amount of grease (included in spare parts) to mating
surfaces of brake pad and pad shim.
5) Set pad shims (1) to brake pads (2).
1 2
I6RS0C430002-01
1
I6RS0C430003-01
(A)
I6RS0B431004-01
113
2
I6RS0B431005-03
2
1
1 2
I6RS0C430004-01
Downloaded from www.Manualslib.com manuals search engine Rear Brakes: 4C-3
6) With lug (1) of brake pad matched with dent (2) of brake piston, install caliper (3) to caliper carrier.
7) Tighten caliper pin bolts (4) to specified torque.
Tightening torque
Caliper pin bolt (a): 23 N·m (2.3 kgf-m, 17 lb-ft)
8) Tighten wheel bolts temporarily and lower lift.
9) Tighten wheel nuts to specified torque. Tightening torque
Wheel bolt: 85 N·m (8.5 kgf-m, 61.5 lb-ft)
10) After completion of installation, check for brake effectiveness.Rear Disc Brake Caliper Removal and
Installation
S7RS0B4306003
CAUTION!
Do not allow brake fluid to get on painted
surfaces. Painted surfaces will be damaged
by brake fluid, flush it with water immediately
if any fluid is spilled.
Removal
1) Hoist vehicle and remove rear wheel.
2) Release parking brake lever.
3) Remove clip (1).
4) Disconnect flexible hose (1) from caliper.
4, (a) 21
3
I6RS0C430005-01
1
I6RS0C430006-01
1
I6RS0C430007-01
Downloaded from www.Manualslib.com manuals search engine 4C-4 Rear Brakes:
5) Remove caliper pin bolts (1).
6) Remove caliper (2) from brake caliper carrier (3).
7) Disconnect parking brake cable (1) from lever (2) while rotating lever in direction of arrow.
8) Remove brake pads, slide pins and slide pin boots from brake caliper carrier.
9) Remove brake caliper carrier (1) from spindle (2). Installation
1) Install brake caliper ca rrier (1) to spindle (2).
Tightening torque
Brake caliper carrier bolt (a): 60 N·m (6.0 kgf-m,
43.5 lb-ft)
2) Install new slide pin boots (1) to brake caliper carrier.
3) Apply rubber grease to slide pins, then install slide pin to front side and slide pin to rear side of brake
caliper carrier.
NOTE
Be sure not to install wrongly because the
shape of slide pins are different as below.
1 3
2
I6RS0C430008-01
1
2
I6RS0B431011-01
1 2
I6RS0B431012-01
F: Vehicle front
1
2
(a)
I6RS0B431023-01
I6RS0C430009-02