2008 SUZUKI SWIFT master cylinder

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 Front Brakes: 4B-5
Assembly
Assemble parts in reverse order of disassembly,
observing the following instructions.
CAUTION!
• Wash each part cleanly before installation in the same fluid as the one used in master
cylinder reservoir.
• Never use other fluid or thinner.
• Before installing piston seal or cylinder boot to cylinder, apply brake fluid to them.
• Install a new piston seal into groove in cylinder securely making sure that it is not
twisted.
• Before installing caliper to carrier, check for slid pin smooth movement in thrust
direction.
• After reassembling brake lines, bleed air from them.

• Install piston seal, boot and piston to caliper referring to the following instructions.
1) Replace with a new piston seal (1) at every overhaul. After applying rubber grease (included in repair kit)
or brake fluid, fit piston seal (1) into groove in
cylinder taking care not to twist it. 2) Before inserting piston (1) into cylinder, apply rubber
grease (included in repair kit) or brake fluid to new
boot “a” and install it onto piston as shown.
3) Fit boot as it is in figure into boot groove in cylinder with fingers.
4) Insert piston into cylinder by hand and fit boot in boot groove in piston.
NOTE
Check that boot is fitted in boot groove
securely all around piston and cylinder.

I2RH01420016-01
1
I2RH01420017-01
“A”: 1 grooved side directed cylinder side
“B”: 2 grooved side directed pad side
I4RS0A420006-01
I2RH01420019-01
I2RH01420020-01

Downloaded from www.Manualslib.com manuals search engine Rear Brakes: 4C-7
Assembly
CAUTION!
• Wash each part cleanly before installation in the same fluid as the one used in master
cylinder reservoir.
• Never use other fluid or thinner.
• Before installing caliper to brake caliper carrier, install slide pins with grease
applied into carrier hole and check for its
smooth movement in thrust direction.
• Before installing piston seal to cylinder, apply fluid to them.
• Install a piston seal into groove in cylinder securely making sure that it is not twisted.

1) Apply thread lock cement to shaft thread (6) of caliper.
“A”: Thread lock cement 99000–32110 (Thread
Lock Cement Super 1322)
2) Apply grease to inside of new shaft cover (1).
3) Install new shaft cover, leve r (2), washer (3), parking
nut (4) and return spring (5) to caliper.
Tightening torque
Parking nut (a): 27 N·m (2.7 kgf-m, 19.5 lb-ft) 4) Install bleeder plug and cap to caliper.
5) Install new piston seal to caliper.
6) Before inserting piston (2) into cylinder, install boot
(1) onto piston as shown.
7) Fit boot as it is in figure into boot groove in cylinder with fingers.
8) Turn brake caliper piston clockwise to obtain clearance between brake disc and pads.
NOTE
Check that boot is fitted in boot groove
securely all around piston.

Special tool
(A): 09945–16060
5
4, (a)
2
3
1
6, “A”
I6RS0C430016-01
[A]: Cylinder side
[B]: Brake pad side
[A] [B]
I6RS0B431017-01
I6RS0B431033-01
I6RS0B431018-01

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-2
General Description
ABS DescriptionS7RS0B4501001
The ABS (Antilock Brake System) controls the fluid
pressure applied to the wheel cylinder of each brake
from the master cylinder so that each wheel is not locked
even when hard braking is applied.
This ABS has also the following function.
While braking is applied, but before ABS control
becomes effective, braking force is distributed between
the front and rear so as to prevent the rear wheels from
being locked too early for better stability of the vehicle.
The main component parts of this ABS include the
following parts in addition to those of the conventional
brake system.
• Wheel speed sensor which senses revolution speed of each wheel and outputs its signal.
• ABS warning light which light s to inform abnormality
when system fails to operate properly.
• ABS hydraulic unit / cont rol module assembly is
incorporated ABS co ntrol module, ABS hydraulic unit
(actuator assembly), solenoid valve power supply
driver (transistor), solenoid valve driver (transistor),
pump motor driver (transistor).
– ABS control module which sends operation signal to ABS hydraulic unit to control fluid pressure
applied to each wheel cylinder based on signal
from each wheel speed sensor so as to prevent
wheel from locking.
– ABS hydraulic unit which operates according to signal from ABS control module to control fluid
pressure applied to wheel cylinder of each 4
wheels.
– Solenoid valve power supp ly driver (transistor)
which supplies power to solenoid valve in ABS
hydraulic unit.
– Solenoid valve driver (transistor) which controls each solenoid valves in ABS hydraulic unit.
– Pump motor driver (transistor) which supplies power to pump motor in ABS hydraulic unit.
This ABS is equipped with Electronic Brake force
Distribution (EBD) system that controls a fluid pressure
of rear wheels to best condition, which is the same
function as that of proportion ing valve, by the signal from
wheel sensor independently of change of load due to
load capacity and so on. An d if the EBD system fails to
operate properly, the brake warning light lights to inform
abnormality.
ABS Hydraulic Unit / Control Module Assembly
Description
S7RS0B4501002
ABS control module is a component of ABS hydraulic
unit / control module asse mbly and has the following
functions.
Self-Diagnosis Function
ABS control module diagnose s conditions of the system
component parts (whether or not there is any
abnormality) all the time and indicates the results
(warning of abnormality occurrence and DTC) through
the ABS warning light as described.
• When ignition switch is turned ON, ABS warning light lights for 2 seconds to check its circuit.
• When no abnormality has been detected (the system is in good condition), ABS warning light turns OFF
after 2 seconds.
• When an abnormality in th e system is detected, ABS
warning light lights and the area where that
abnormality lies is stored in the memory of EEPROM
in ABS control module.
1
I4RS0A450001-01

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-1
Brakes
Electronic Stability Program
Precautions
Precautions in Diagnosing TroublesS7RS0B4600001
To ensure that the trouble diagnosis is done accurately
and smoothly, observe the following and follow
“Electronic Stability Program System Check”.
• Diagnostic information stored in ESP® control module
memory can be cleared as well as checked by using
SUZUKI scan tool. Before us ing scan tool, read its
Operator’s (Instruction) Manual carefully to have good
understanding as to what functions are available and
how to use it.
• If the vehicles was operated in any of the following ways, ESP ® warning lamp may light momentarily but
this does not indicate anything abnormal in ESP ®.
– The vehicle was driven with parking brake pulled.
– The vehicle was driven with brake dragging.
– The vehicle was stuck in mud, sand, etc.
– Wheel spin occurred while driving.
– Wheel(s) was rotated while the vehicle was jacked up.
• Be sure to use the trouble diagnosis procedure as described in “Electronic Stability Program System
Check”. Failure to follow it may resu lt in incorrect
diagnosis. (Some other diagnosis trouble code may
be stored by mistake in the memory of ESP ® control
module during inspection.)
• When disconnecting ESP ® control module connector
(1), pull down the lock lever (2) of connector.
When connecting, set the connector on ESP ®
hydraulic unit / control module assembly and pull up
the lock lever (2) until it locks. • Communication of ECM, BCM, ESP
® control module,
keyless start control module (if equipped), steering
angle sensor and combination meter is established by
CAN (Controller Area Network).
Therefore, be sure to read “Precautions for Installing
Mobile Communication Equipment in Section 00”
before inspection and handling CAN communication
line.
Precautions in On-Vehicle ServiceS7RS0B4600002
When connector is connected to ESP ® hydraulic unit /
control module assembly, do not disconnect connectors
of sensors with ignition switch ON. Otherwise, DTC will
be set in ESP ® control module.
Precautions in Hydraulic Unit Operation CheckS7RS0B4600003
ESP® hydraulic unit / control module assembly function
is checked by correct wheel lock / release condition
when brake pressure is pressurized / depressurized
using SUZUKI scan tool. The hydraulic unit operation
check referring to “ESP ® Hydraulic Unit Operation
Check” should be performed to confirm the correct brake
pipe connection in the following cases.
• ESP® hydraulic unit / contro l module assembly was
replaced.
• Brake pipe and/or hose were replaced.
Precautions in Sensor CalibrationS7RS0B4600004
ESP ® control module stores calibration points data of yaw rate / G sensor assembly and master cylinder pressure
sensor. Steering angle sensor stores calibration point data of itself.
TCS and stability control system use these sets of data.
When the following operation is done, sensor calibration should be performed since the original calibration points are
deleted.
[A]: Disconnect [C]: Pull down to disconnect
[B]: Connect [D]: Pull up to connect
21
C D
[A]
[B]
I4RH01450001-01

Downloaded from www.Manualslib.com manuals search engine 4F-2 Electronic Stability Program:
Perform sensor calibration according to “Sensor Calibration”.
Precautions in Speedometer Test or Other TestsS7RS0B4600005
When performing speedometer or other tests using speedometer tester or chassis dynamometer, ESP® function must
be deactivated by ESP ® OFF switch or using SUZUKI scan to ol to complete the tests correctly.
When using SUZUKI scan tool, set to the “MISC. TEST” mode to stop the ESP ® function. Refer to SUZUKI scan tool
operator's manual for further details.
General Description
Electronic Stability Program DescriptionS7RS0B4601006
Electronic Stability Program (ESP ®) is an auxiliary function to enable the vehicle to av oid a danger safely while the
vehicle is running, stopping or turning.
Electronic Stability Program (ESP ®) consists of following functions.
ESP ® is a registered trademark of Daimler Chrysler AG.
Antilock Brake System (ABS)
This system prevents tire locking which may occur when br ake is applied suddenly or on slippery roads. With this
function, as the vehicle body is kept in the stable state an d tires unlocked, the driver can avoid any obstacle by turning
the steering wheel.
Electronic Brake force Distribution (EBD)
This function distributes braking force of front and rear wheels properly according to the vehicle load condition.
With this function, the braking force of the front and rear wheels is controlled for the optimum effect to secure the
maximum braking force regardless of the loadage.
Traction Control System (TCS)
This system controls the engine and brake to prevent the dr iving wheels from spinning at the time of starting and
accelerating. Particularly, this fu nction is helpful for safe driving on muddy or icy roads. When ESP ® control module
detects wheel spinning using information from the yaw rate sensor and wheel speed sensor, it lower the engine torque
by closing the electronic controlled thro ttle and controlling ignition. At the same time, brake is applied to the spinning
tire.
Stability Control
This function controls the vehicle body in the stable state by controlling the engine and braking so as to prevent the
vehicle from over-steering or under-steering while turning.
When under-steering occurs, this function lowers the engine torque and applies brake to the inner rear wheel in the
vehicle forward direction so as to pr event the vehicle from moving outward.
When over-steering occurs, this function applies brake to the outer front wheel in the vehicle forward direction so as to
prevent the vehicle from moving inward. Sensor Procedures required calibration
Steering angle sensor • Power is not su pplied to steering angle sensor. (battery, fuse and/or connector is
removed.)
• Steering angle sensor is replaced.
• Power is not supplied to ESP ® control module. (battery, fuse and/or connector is
removed.)
• ESP® hydraulic unit / control module assembly is replaced.
Master cylinder pressure sensor • ESP® hydraulic unit / control module assembly is removed or replaced.
Yaw rate / G sensor assembly • Yaw rate / G sensor assembly is removed or replaced.
• ESP® hydraulic unit / control module assembly is replaced.

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-3
Electronic Stability Program ConstructionS7RS0B4601007
ESP® control module/ hydraulic unit
The control module receives signals from each wheel speed sensor, ESP O FF switch, brake master cylinder pressure
sensor, steering angle sensor and yaw rate / G sensor. Ba sed on these signals as information, the control module
judges the vehicle conditions and controls the brake hydraulic pressure by combining the ON/OFF operation of the
solenoid in the hydraulic unit and the pump motor operation.
The hydraulic unit contains an inlet so lenoid valve and an outlet solenoid valve for each wheel as well as a cut
solenoid valve and a low pressure solenoid valve for each hydraulic unit system. Also, a master cylinder pressure
sensor, pump motor, etc. are included. The hydraulic pre ssure control is done in 3 modes of pressure increase,
pressure keeping and pressure reduction.
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1
2 3
4
5
6
8
9
10
1010
10
1312
11
14
I7RS0B460001-03
1. ESP ® control module 6. Steering angle sensor 11. ESP ® OFF switch
2. Hydraulic unit 7. Stop lamp switch 12. Electronic signal
3. ECM 8. Yaw rate / G sensor 13. CAN signal
4. BCM 9. Brake master cylinder pre ssure sensor 14. Hydraulic circuit
5. Combination meter 10. Wheel speed sensor

Downloaded from www.Manualslib.com manuals search engine 4F-4 Electronic Stability Program:
• Pump motor:The pump motor turns on and applies pressure to each brake when braking is activated in the TCS and stability
control state. When in the pressure reduction mode, it causes the brake fluid in the reservoir to return to the master
cylinder.
• Brake master cylinder pressure sensor: This sensor detects the brake hydraulic pressure in th e primary piping when brake is applied in the normal
condition. Also, it detects the pump motor driving state wh en brake is applied in the TCS and Stability Control state.
• Inlet solenoid valve: In the ABS, TCS and Stability Control stat e, this valve is activated in the pressure keeping and pressure reduction
modes to open the fluid passage, thereby restricting increase of the hydraulic pressure applied to the brake caliper.
• Outlet solenoid valve: In the ABS, TCS and Stability Control state, this valve is activated in the pressure reduction mode to open the fluid
passage, thereby lowering the hydraulic pressure kept in the brake caliper.
• Cut solenoid valve: When brake is applied in the TCS and Stability Control state, this valve is activated to close the fluid passage,
thereby causing the hydraulic pressure generated by the pump motor to apply to the brake caliper.
• Low pressure solenoid valve: When brake is applied in the TCS and Stab ility Control state, this valve is activated to open the fluid passage from
the master cylinder to the pump motor.
Steering angle sensor
The steering angle sensor is assembled with the contact co il as a unit and mounted to the steering column. Detecting
the angle as the steering wheel is turned, it sends that information to the ESP ® control module.
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10 10
11 11
6
7
12 12
8 8 88
9 9 9
9
43 5 2
I7RS0B460002-01
1. Master cylinder 5. Brake caliper (rear-left)9. Outlet solenoid valve
2. Brake caliper (front-right) 6. Pump motor10. Cut solenoid valve
3. Brake caliper (front-left) 7. Brake master cylinder pressure sensor 11. Low pressure solenoid valve
4. Brake caliper (rear-right) 8. Inlet solenoid valve