Vehicle speed SUZUKI SWIFT 2007 2.G Service Manual PDF
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 2007, Model line: SWIFT, Model: SUZUKI SWIFT 2007 2.GPages: 1496, PDF Size: 34.44 MB
Page 541 of 1496
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
Page 551 of 1496
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-12
DTC ClearanceS7RS0B4504006
WARNING!
When performing a driving test, select a safe
place where there is neither any traffic nor
any traffic accident possibility and be very
careful during testing to avoid occurrence of
an accident.
After repair or replace malfunction part(s), clear all DTCs
by performing the following procedure or using SUZUKI
scan tool.
1) Connect SUZUKI scan tool to data link connector in the same manner as when making this connection
for DTC check.
2) Turn ignition switch to ON position.
3) Erase DTC according to instructions displayed on scan tool. Refer to scan tool operator’s manual for
further derails.
NOTE
For DTC C 1021, C1022, C1025, C1026, C1031,
C1032, C1035, C1036 and C1061, confirm that
ABS warning light turns off after performing
Step 2 of “Test Driving” under “ABS Check”,
and then clear the DTCs.
4) After completing the clear ance, turn ignition switch
OFF and disconnect scan tool from data link
connector.
5) Perform “Driving Test” (S tep 2 of “ABS Check”) and
“DTC Check” and confirm that NO DTC is displayed
on scan tool.
Scan Tool DataS7RS0B4504007
The parameter data below are values measured with the
scan tool when the normally operating vehicle is under
the following conditions. When taking measurements for
comparison by using the scan tool, be sure to check that
the vehicle is under the following conditions.
• Apply parking brake and block wheels.
• Ignition switch ON.
• Turn OFF air conditioner (if equipped).
• Apply no load to power steering (if equipped). (Don’t turn it)
• Turn OFF all electric loads (except ignition).
• No DTC.
• ABS is not operated. (N ormal braking operation)
Scan Tool Data Definition
Battery Volt (V): Battery Voltage is an analog input
signal read by the ABS control module. Certain ABS
control module function s will be modified if the
battery voltage falls below or rises above
programmed thresholds.
Pump Motor Driver (V): This parameter indicates the
operational condition of the pump motor driver
(transistor).
RF Wheel Speed, LF Wheel Speed, RR Wheel Speed and LF Wheel Speed (km/h, MPH): Wheel speed
is an ABS control module inte rnal parameter. It is
computed by reference pulses from the wheel speed
sensor.
Brake Switch (ON, OFF): This switch signal informs
the ABS control modu le whether the brake is active
or not.
Scan Tool
Data Standards Condition
Battery
Voltage 10.0 – 18.0 V —
Pump Motor
Driver 0.0 V —
RF Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
LF Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
RR Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
LR Wheel
Sp ee d 0 km/h, 0.0 MPH Vehicle stop
Brake Switch ONBrake pedal
depressed
OFF Brake pedal released
Page 557 of 1496
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-18
DTC C1021, C1022 / C1025, C1026 / C1031, C1032 / C1035, C1036: Right-Front / Left-Front / Right-
Rear / Left-Rear Wheel Speed Sensor Circuit or Sensor Ring
S7RS0B4504012
Wiring Diagram
DTC Detecting Condition
The ABS control module monitors the voltage at the terminal of each sensor while the ignition swit ch is ON. When the
voltage is not within the specified range, an applicable DTC will be set. Also, when no sensor signal is inputted at
running, an applicable DTC will be set.
NOTE
When the vehicle was operated in any of the following ways, one of these DTCs may be set even when
the sensor is in good condition. If such possibility is suspected, clear DTC once referring to “DTC
Clearance” and then performing the driving test as described in Step 2 of “ABS Check”, check whether
or not any abnormality exists.
• The vehicle was driven with parking brake pulled.
• Wheel spin occurred while driving.
• Wheel(s) was turned while the vehicle was jacked up.
• The vehicle was stuck.
YELBRN
3E03-24
LT GRN/BLKLT GRN
4
WHTWHT/BLK
5
RED
WHTBLK
WHTBLK
WHTBLK
WHTBLKRED/BLK
6
E03-25
E03-15E03-16
E03-19E03-18
E03-22E03-21
12V
12V
12V
12V
12V
7
GRN/ORNE03-7GRN
1
2
[A]
E03
15
16
17
18
19
20
21
22
23
24
25 2
3
4
5
6
7
8
9
10
11
12
1
13
14
26
I6RS0C450009-01
[A]: ABS hydraulic unit / control module connector
(viewed from terminal side) 3. Right-rear wheel speed sensor 6. Left-front wheel speed sensor
1. Ignition switch 4. Left-rear wheel speed sensor 7. ABS hydraulic unit / control module assembly
2. Circuit fuse box 5. Right-front wheel speed sensor
Page 558 of 1496
Downloaded from www.Manualslib.com manuals search engine 4E-19 ABS:
DTC TroubleshootingStep Action Yes No 1 Was “ABS Check” performed? Go to Step 2. Go to “ABS Check”.
2 1) Disconnect applicable ABS wheel speed sensor coupler with ignition switch OFF.
2) Measure resistance betw een terminals of ABS wheel
speed sensor. Refer to “Front Wheel Speed Sensor
Inspection” and/or “Front Wheel Encoder On-Vehicle
Inspection”.
Is measured resistance value as specified? Go to Step 3. Replace ABS wheel
speed sensor assembly.
3 1) Turn ignition switch OFF. 2) Connect applicable ABS wh eel speed sensor coupler.
3) Disconnect ABS hydraulic unit / control module connector.
4) Check for proper connection to ABS control module at each sensor terminal.
5) If OK, then turn ignition switch ON and measure voltage between applicable sensor terminal of module connector
and body ground.
Is it 0 V? Go to Step 4. ABS wheel speed
sensor circuit shorted to
power.
4 1) Turn ignition switch OFF. 2) Measure resistance between the following points.• Both ABS hydraulic unit / control module connector terminals of the correspo nding sensor. This check
result should be the same as Step 2).
• Either terminal of wheel speed sensor coupler and body ground. This check result should be no
continuity.
Are both check results OK? Go to Step 5. Circuit open or shorted
to ground.
5 1) Remove applicable ABS wheel speed sensor. 2) Check sensor for damage or foreign material attached.
Is it in good condition? Go to Step 6. Clean, repair or replace.
6 Check front and/or rear sensor ring for the following (remove rear drum as necessary):
• Sensor ring serration (teeth) neither missing nor damaged
• No foreign material being attached
• Sensor ring not being eccentric
• Wheel bearing free from excessive play
Are they in good condition? Go to Step 7. Clean, repair or replace.
7 1) Install ABS wheel speed sensor to knuckle. 2) Tighten sensor bolt to specified torque and check that there is no clearance between sensor and knuckle.
Is it OK? Go to Step 8. Replace ABS wheel
speed sensor.
8 Refer to “Front / Rear Wheel Speed Sensor On-Vehicle Inspection” and/or “Rear Wheel Speed Sensor Removal and
Installation”, check output voltage or waveform.
Is specified voltage and/or waveform obtained? Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
Replace sensor and
recheck.
Page 570 of 1496
Downloaded from www.Manualslib.com manuals search engine 4E-31 ABS:
2) Bleed air from brake system referring to “Air Bleeding of Brake System in Section 4A”.
3) Check each installed part for fluid leakage and perform “ABS Hydraulic Un it Operation Check”.
NOTE
For new ABS hydraulic unit / control module
assembly, if “ABS Hydraulic Unit Operation
Check” has not been performed, ABS
warning light may flash when ignition switch
is turned ON position.
Accordingly preform “ABS Hydraulic Unit
Operation Check” to stop flashing of ABS
warning light.
Front / Rear Wheel Speed Sensor On-Vehicle
Inspection
S7RS0B4506005
Output Voltage Inspection
1) Disconnect negative cable from battery.
2) Hoist vehicle a little.
3) Disconnect wheel speed sensor connector.
4) Disconnect wheel speed grommet from vehicle body.
5) Set up measuring devices as shown in figure, the resistance to 115 Ω and the power supply voltage to
12 V.
CAUTION!
Incorrect voltage and/or wrong connection
cause damage to wheel speed sensor.
6) Measure voltage at resistance without wheel rotation.
If voltage is out of specification, check sensor,
mating encoder and their installation conditions.
Voltage at the resistance (115
Ω) without wheel
rotation
680 to 960 mV
7) Measure voltage at resistance with wheel rotation and confirm voltage alternately changes between
high and low voltages.
If voltage does not change with wheel rotation, check
sensor, mating encoder and their installation
conditions.
Voltage at the resistance (115
Ω) with wheel
rotation
High voltage “a”: 1360 to 1930 mV
Low voltage “b”: 680 to 960 mV
Reference
When using oscilloscope for this check, check if peak-to-
peak voltage and waveform meet specification.
Peak-to-peak Voltage at the resistance (115
Ω) with
wheel rotation
High voltage “a”: 1360 to 1930 mV
Low voltage “b”: 680 to 960 mV
[A]: Front wheel speed sensor 3. “WHT” wire terminal
[B]: Rear wheel speed sensor 4. “BLK” wire terminal
1. Wheel speed sensor connector 5. Power supply (12 V)
2. Resistance (115 Ω )
V
2
5
41
3
43
1
[A]
[B]
I6RS0B460031-02
[A]: Voltage [B]: Time
I5JB0A450027-01
I5JB0A450028-02
Page 571 of 1496
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Front Wheel Speed Sensor Removal and
Installation
S7RS0B4506006
Removal1) Disconnect negative cable from battery.
2) Disconnect front wheel speed sensor coupler (1).
3) Hoist vehicle and remove wheel.
4) Remove harness clamp, clamp bolt (2) and grommet (3).
5) Remove front wheel speed sensor (4) from knuckle.
CAUTION!
• Do not pull wire ha rness when removing
front wheel speed sensor.
• Do not cause damage to surface of front wheel speed sensor and do not allow dust,
etc. to enter its installation hole.
Installation
1) Check that no foreign material is attached to sensor (1) and sensor ring (2).
2) Install it by reversing removal procedure.
Tightening torque
Front wheel speed sensor bolt (a): 25 N·m (2.5
kgf-m, 18.0 lb-ft)
Front wheel speed sensor harness clamp bolt
(b): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
CAUTION!
Do not pull or twist wire harness more than
necessary when installing front wheel speed
sensor.
3) Check that there is no clearance between sensor
and knuckle.
Front Wheel Speed Sensor InspectionS7RS0B4506007
• Check sensor for damage.
If any malcondition is found, replace.
3
1
2
4
I6RS0C450017-01[A]: OK [B]: NG
[A][B]
11
(a)
(b)
1
2
I6RS0C450018-01
I5JB0A450031-01
Page 572 of 1496
Downloaded from www.Manualslib.com manuals search engine 4E-33 ABS:
Rear Wheel Speed Sensor Removal and
Installation
S7RS0B4506008
Removal1) Disconnect negative (–) cable from battery.
2) Remove quarter inner trim to brake referring to “Floor Carpet Removal a nd Installation in Section
9H”.
3) Turn over floor carpet (2) and disconnect connector (1) of wheel speed sensor.
4) Hoist vehicle and remove wheel.
5) Remove harness clamp (1) and clamp bolts (2).
6) Remove rear wheel speed sensor (3) from knuckle.
CAUTION!
• Do not pull wire harness when removing rear wheel speed sensor.
• Do not cause damage to surface of rear wheel speed sensor and do not allow dust,
etc. enter its installation hole.
Installation
Reverse removal procedure for installation noting the
following.
• Check that no foreign material is attached to sensor (1) and mating encoder (2).
• Be sure to install wheel speed sensor (1) and its bolt at the correct position as shown in figure.
Tighten sensor bolt and harness clamp bolts to
specified torque.
Tightening torque
Rear wheel speed sensor bolt (a): 11 N·m (1.1 kgf-
m, 8.0 lb-ft)
Rear wheel speed sensor harness clamp bolt (a):
11 N·m (1.1 kgf-m, 8.0 lb-ft)
CAUTION!
Do not pull or twist wire harness more than
necessary when installing rear wheel speed
sensor.
• Check that there is no clearance between sensor and brake back plate.
2
2
1
I6RS0B460035-02
3
2
1
I6RS0B460036-02
[A]: OK [B]: NG
1
(b)
[A][B]
11
(a)
2
I6RS0B460037-02
Page 573 of 1496
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Rear Wheel Speed Sensor InspectionS7RS0B4506009
Refer to “Front Wheel Speed Sensor Inspection” since
rear wheel speed sensor is the same as front wheel
speed sensor.
Front Wheel Encoder On-Vehicle InspectionS7RS0B4506010
Before inspect front wheel encoder, remove front drive
shaft or front wheel spindle referring to “Front Drive Shaft
Assembly Removal and Installation in Section 3A”.
• Check encoder (1) for being crack, damaged or deformed.
• Turn wheel and check if encoder rotation is free from eccentricity and looseness.
• Check that no foreign material is attached. If any faulty is found, cl ean encoder or replace wheel
bearing. Refer to “Front Wheel Hub, Steering Knuckle
and Wheel Bearing Removal and Installation in
Section 2B”.
Front wheel Encoder Removal and InstallationS7RS0B4506011
CAUTION!
Front wheel encoder is included in front
wheel bearing. If front wheel encoder needs
to replaced, replace it as a front wheel
bearing.
For removal and installation of front wheel bearing,
referring to “Front Wheel Hub, Steering Knuckle and
Wheel Bearing Removal and Installation in Section 2B”.
Rear Wheel Encoder On-Vehicle InspectionS7RS0B4506012
Before inspect rear wheel encoder, hoist vehicle and
remove wheel.
• Check encoder (1) for being crack, damaged or deformed.
• Turn wheel and check if encoder rotation is free from eccentricity and looseness.
• Check that no foreign material is attached. If any faulty is found, clean encoder or replace rear
wheel hub assembly. Refer to “Rear Wheel Hub
Removal and Installati on in Section 2C”.
Rear Wheel Encoder Removal and InstallationS7RS0B4506013
CAUTION!
Rear wheel encoder is included in rear wheel
hub assembly. If rear wheel encoder needs to
replaced, replace it as a rear wheel hub
assembly.
For removal and installation of front wheel hub
assembly, referring to “Rear Wheel Hub Removal and
Installation in Section 2C”.
1
I5JB0A450034-01
1
I6RS0B460038-03
Page 576 of 1496
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.
Page 577 of 1496
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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.
7
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