2007 SUZUKI SWIFT 12 volt

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-28
Repair Instructions
ABS Hydraulic Unit Operation CheckS7RS0B4506001
1) Check that basic brake system other than ABS is in good condition.
2) Check that battery voltage is 11 V or higher.
3) Lift up vehicle.
4) Set transmission to neutral and release parking brake.
5) Turn each wheel gradually by hand to check if brake dragging occurs. If it does, correct.
6) Connect SUZUKI scan tool to data link connector (DLC) (1) with ignition switch OFF.
Special tool
(A): SUZUKI scan tool 7) Turn ignition switch to ON position and select menu
to “HYDRAULIC CONTROL TEST” under
“miscellaneous test” (“MISC. TEST”) mode of
SUZUKI scan tool.
8) Perform the following checks with help of another person.
Brake pedal (1) should be depressed and then select
testing wheel by SUZUKI scan tool and the wheel (2)
should be turned by another person’s hand. At this
time, check that:
• Operation sound of solenoid is heard and the wheel turns only about 0.5 sec. (Brake force is
depressurized).
• Operation sound of pump motor is heard and pulsation is felt at brake pedal.
9) Check for all 4-wheels co ndition respectively. If a
faulty condition is found, replace hydraulic unit /
control module assembly.
10) After completing the check, turn ignition switch to OFF position and disconnect SUZUKI scan tool from
DLC.
8 1) Substitute a know-good BCM and recheck ABS control
module for DTC.
IS DTC U1100 detected? Substitute a know-good
ABS control module and
recheck.
End.
Step Action Yes No
1 (A)I4RS0A450020-01
I4RH01450021-01

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

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-5
Yaw rate / G sensor
The yaw rate / G sensor consists of the yaw rate (angular velocity in the vehicle turning direction) sensor and right-left
G (acceleration in right-left direction) sensor and is mounted to the P/S controller B/K at the lower part of the center
console. It detects the angular velocity in the vehicle turn ing direction and movement in the right-left direction, and
then it sends that information to ESP ® control module.
Wheel speed sensor
The vehicle speed is detected by the hall IC type wheel speed sensor (1) and encoder (4). The wheel speed sensor is
fixed to the knuckle and includes a hall IC (3) having 2 hall elements (2).
The encoder consisting of a permanent ma gnet which has S/N electrodes turns inside of the wheel hub along with the
wheel. The wheel speed sensor outputs alternate current.
As the cycle of the alternate current is in proportion to the revolution speed of the encoder, this AC signal (5) is
converted into the voltage signal in the ESP ® control module (6) for detection of the wheel speed.
ESP ® Hydraulic Unit / Control Module
Assembly Description
S7RS0B4601002
ESP ® control module is a component of ESP ® hydraulic
unit / control module assembly and has the following
functions.
Self-Diagnosis Function
ESP ® control module monitors each input and output
signals. When ESP ® control module detects any
malfunction, some of ABS warning lamp (1), EBD
warning lamp (brake warning lamp) (2), ESP ® warning
lamp (3), SLIP indicator lamp (4), ESP ® OFF lamp (5)
are turned ON and indicate the abnormality to driver.
• When ignition switch is turned ON, ABS warning lamp, EBD warning lamp, ESP ® warning lamp, SLIP
indicator lamp and ESP ® OFF lamp light for 2
seconds to check its circuit.
• When no abnormality is detected (the system is in good condition), ABS warning lamp, EBD warning
lamp, ESP ® warning lamp, SLIP indicator lamp and
ESP ® OFF lamp turn OFF after 2 seconds.
• When an abnormality in the system is detected, some of ABS warning lamp, EBD warning lamp (brake
warning lamp), ESP ® warning lamp, SLIP indicator
lamp and/or ESP ® OFF lamp are turned ON and the
area where that abnormality lies is stored in the
memory in ESP ® control module. Fail-Safe Mode
When ESP
® control module detects abnormality, the
system goes into fail-safe mode. And some of functions
of ABS, TCS, stability control system are shut down. For
details of fail safe mode, re fer to “Fail-Safe Table”.
S
N
S
N
S
N
N
S
N
S
12V
2
3
1
5
4
6I7RS0B460003-01
3245
1
I6RS0B460001-01

Downloaded from www.Manualslib.com manuals search engine 4F-8 Electronic Stability Program:
Schematic and Routing Diagram
Electronic Stability Program SchematicS7RS0B4602001
INPUTOUTPUT
ESP® control module
Wheel speed sensor (LF)
Wheel speed sensor (LR)
Wheel speed sensor (RF) Battery VoltageMaster cylinder pressure sensor
Pump motor driver
(transistor)
Solenoid valve power
supply driver (transistor)
Solenoid valve driver
(transistor)
CAN driver
CAN driver (for yaw rate /
G sensor assembly) Hydraulic unit
Pump motor
LF inlet solenoid valve
LF outlet solenoid valve
LR inlet solenoid valve
LR outlet solenoid valve
RF inlet solenoid valve
RF outlet solenoid valve
RR inlet solenoid valve
RR outlet solenoid valve
Data link connector
Data link connector
ESP® hydraulic unit/control module assembly
Wheel speed sensor (RR)
Master cylinder cut solenoid valve No. 1
Master cylinder cut solenoid
valve No. 2
Low pressure solenoid valve No. 1
Low pressure solenoid valveNo. 2
Stop lamp switch
Engine torque
Accelerator pedal position
Engine speed ECM
Brake fluid level switch
Parking brake switch
BCM
Steering angle sensor
ESP® OFF switch
Yaw rate
Lateral G Yaw rate / G sensor assembly
ABS warning lamp
EBD warning lamp
ESP® warning lamp
SLIP indicator lamp
ESP® OFF lampCombination meter
Torque request
ECM
Steering angle neutral positionSteering angle sensor
Yaw rate / G sensor assembly
Lateral G neutral position
I7RS0B460006-01

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-15
EBD Warning Lamp (Brake Warning Lamp)
Check
S7RS0B4604047
NOTE
Perform this check on a level place.

1) Turn ignition switch ON with parking brake applied.
2) Check that EBD warning lamp (brake warning lamp)
(1) is turned ON.
3) Release parking brake with ignition switch ON and check that EBD warning lamp (brake warning lamp)
goes off.
If it doesn't go off, go to “EBD Warning Lamp (Brake
Warning Lamp) Comes ON Steady”.
DTC CheckS7RS0B4604004
1) Turn ignition switch to OFF position.
2) Connect SUZUKI scan tool to data link connector (1).
Special tool
(A): SUZUKI scan tool
3) Turn ignition switch to ON position.
4) Read DTC according to instructions displayed on
SUZUKI scan tool and print it or write it down. Refer
to SUZUKI scan tool operator’s manual for further
details.
NOTE
If SUZUKI scan tool can not communicate
ESP® control module, perform “Serial Data
Link Circuit Check”.

5) After completing the check, turn ignition switch off and disconnect SUZUKI scan tool from DLC.
DTC TableS7RS0B4604005
CAUTION!
Be sure to perform “Electronic Stability Program System Check” before starting diagnosis.

BRAKE
1
I4RS0A450008-01
(A)
1
I4RS0B450003-01
DTC (displayed
on SUZUKI scan tool) Diagnostic Items
Detecting condition (DTC will
beset when detecting) ABS
warning lamp EBD
warning lamp ESP
®
warning lamp
NO DTC Normal — — — —
) C1016 Stop lamp switch failure Vehicle behavior and stop lamp
switch signal is disagreed for
specified time.———
) C1017 Lateral G sensor range /
performance Lateral G sensor signal is out of
specified range.
——
{
) C1018 Brake fluid level switch
failure • Brake fluid level is too low.
• Input signal of brake fluid level
switch to BCM is low level. ——
{
) C1020 Master cylinder pressure
sensor power supply failure Power supply volt
age to master
cylinder pressure sensor in ESP ®
hydraulic unit / control module
assembly is out of specification. ——
{
) C1021 Right-front wheel speed
sensor circuit failure Wheel sensor signal is out of
specified range.
{
*1 {

Downloaded from www.Manualslib.com manuals search engine 4F-16 Electronic Stability Program:
) C1022 Right-front wheel speed
sensor or encoder failure Abnormal wheel speed sensor
signal is detected.
{
*1 {
) C1023 Yaw rate sensor failure • Yaw rate sensor signal is out of
range.
• Vehicle behavior and yaw rate signal is disagreed. ——
{
) C1024 Steering angle sensor circuit
failure • Steering angle sensor internal
defect is detected by CPU in
steering angle sensor.
• Steering angle sensor signal is out of specified range. ——
{
) C1025 Left-front wheel speed
sensor circuit failure Wheel sensor signal is out of
specified range.
{
*1 {
) C1026 Left-front wheel speed
sensor or encoder failure Abnormal wheel speed sensor
signal is detected.
{
*1 {
) C1027 ESP
® OFF switch circuit
failure Mechanical switch failure, failure in
switch wiring is shorted to ground.
———
) C1028 Master cylinder pressure
sensor circuit failure Input signal voltage from master
cylinder pressure sensor in ESP
®
control module is too high or low. ——
{
) C1031 Right-rear wheel speed
sensor circuit failure Wheel sensor signal is out of
specified range.
{
*1 {
) C1032 Right-rear wheel speed
sensor or encoder failure Abnormal wheel speed sensor
signal is detected.
{
*1 {
) C1034 Yaw rate / G sensor
assembly power supply
failure Power supply voltage of yaw rate /
G sensor assembly is too high when
ignition switch OFF.
——{
Power supply voltage of yaw rate /
G sensor assembly is too low when
ignition switch ON.
) C1035 Left-rear wheel speed
sensor circuit failure Wheel sensor signal is out of
specified range.
{
*1 {
) C1036 Lef

t-rear wheel speed
sensor or encoder failure Abnormal wheel speed sensor
signal is detected.
{
*1 {
) C1037 Steering angle sensor power
supply failure Power supply voltage to steering
angle sensor is too low.
——
{
) C1038 Steering angle sensor detect
rolling counter failure from
ESP
® control module ESP
® control module rolling
counter failure is detected by
steering angle sensor. ——
{
) C1039 Yaw rate / G sensor
assembly internal failure Yaw rate / G sensor assembly
internal failure is detected.
——
{
) C1040 Stability control system
function failure Stability control is active for more
than specified time
without yaw rate
change. ——
{
DTC (displayed
on SUZUKI scan tool) Diagnostic Items
Detecting condition (DTC will
beset when detecting) ABS
warning lamp EBD
warning lamp ESP
®
warning lamp

Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-17
) C1041 Right-front inlet solenoid
valve circuit failure
Mismatching solenoid output and solenoid monitor is detected. {{{
) C1042 Right-front outlet solenoid
valve circuit failure {{{
) C1043 Master cylinder cut solenoid
valve circuit No.1 failure {{{
) C1044 Master cylinder cut solenoid
valve circuit No.2 failure {{{
) C1045 Left-front inlet solenoid valve
circuit failure {{{
) C1046 Left-front outlet solenoid
valve circuit failure {{{
) C1051 Right-rear inlet solenoid
valve circuit failure {{{
) C1052 Right-rear outlet solenoid
valve circuit failure {{{
) C1053 Low pressure solenoid valve
circuit No.1 failure {{{
) C1054 Low pressure solenoid valve
circuit No.2 failure {{{
) C1055 Left-rear inlet solenoid valve
circuit failure {{{
) C1056 Left-rear outlet solenoid
valve circuit failure {{{
) C1057 *2 ESP
® control module power
supply circuit failure ESP®
control module power supply
voltage is too high. {{{
ESP® control module power supply
voltage is too low. {
*4 {
) C1061 Pump motor and/or motor
circuit failure Defective pump motor and/or motor
power supply voltage is too low.
{
— {
) C1063 Solenoid valve
power supply
driver circuit failure Mismatching solenoid output and
solenoid monitor is detected.
{{{
) C1071 ESP
® con
trol module
internal defect ESP®
control module internal
defect is detected. {{{
) C1073 Lost communication with
yaw rate / G sensor
assembly CAN line communication error in
ESP®
control module and yaw rate
/ G sensor assembly is detected. ——
{
) C1075 Steering angle sensor
calibration incomplete *3 Missing steering angle sensor
calibration point data is detected.
——
{
) C1076 Master cylinder pressure
sensor calibration
incomplete Master cylinder pressure sensor
calibration is incompleted.
——
{
) C1078 Lateral G sensor in yaw rate
/ G sensor assembly
calibration incomplete Lateral G sensor in yaw rate / G
sensor assembly calibration is
incompleted.
——
{
) C1090 Invalid communication with
ECM ESP®
control module rolling
counter failure is detected by ECM. ——
{
) C1091 ECM data in CAN line failure ECM sent invalid signal to ESP
®
control module. ——
{
) C1094 Invalid torque control
communication with ECM Reception error of torque control
signal with ECM
——
{
) U1073 Control module
communication bus off Transmission error that is
inconsistent between transmission
data and transmission monitor
(CAN bus monitor) data is detected
more than 7 times continuously.
——
{
DTC (displayed
on SUZUKI scan tool) Diagnostic Items
Detecting condition (DTC will
beset when detecting) ABS
warning lamp EBD
warning lamp ESP
®
warning lamp

Downloaded from www.Manualslib.com manuals search engine 4F-18 Electronic Stability Program:
NOTE
•“{” in ABS warning lamp, EBD warning lamp and ESP ® warning lamp column of the above table
means warning lamp is li t when DTC is detected.
• *1: If two or more wheel speed sensor are defective, ABS warning lamp, EBD warning lamp and ESP ® warning lamp are lit and all the control functions are deactivated. If one wheel speed sensor is
defective, ABS warning lamp and ESP ® warning lamp are lit and ABS and TCS / stability control are
deactivated.
• *2: SLIP indicator lamp and ESP ® OFF lamp turn ON when power supply circuit voltage is low.
• *3: SLIP indicator lamp flashes continuously at Intervals of 1 Hz.
• *4: EBD warning lamp is lit when power supply circuit voltage is too low.

DTC ClearanceS7RS0B4604006
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.

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 t ool. Refer to scan tool operator’s manual for further
derails.
4) After completing the clearance, tu rn ignition switch OFF and disconnec t scan tool from data link connector.
5) Perform “Driving Test” (Step 2 of “E lectronic Stability Program System Check” ) and “DTC Check” and confirm that
NO DTC is displayed on scan tool. )
U1100 Lost communication with
ECM (reception error) ECM message data is missing from
CAN communication.
——
{
) U1126 Lost communication with
steering angle sensor
(reception error) Steering angle sensor message
data is missing from CAN
communication.
——
{
) U1140 Lost communication with
BCM (reception error) BCM message data is missing from
CAN communication.
——
{
DTC (displayed
on SUZUKI scan tool) Diagnostic Items
Detecting condition (DTC will
beset when detecting) ABS
warning lamp EBD
warning lamp ESP
®
warning lamp