2008 SUZUKI SWIFT ABS SYSTEM

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Customer questionnaire (Example)
Problem symptom confirmation
If symptom in “Customer Questionnaire” is found or reproduced in the vehicle, confirm the symptom is problem or not.
(This step should be done with the customer if possible.) Check warning lamps related to brake system referring to
“EBD Warning Lamp (Brake Warning Lamp) Check”, “ABS Warning Lamp Check” and “ESP ® Warning lamp Check”.
DTC check, record and clearance
Perform “DTC Check” procedure, record it and then clear it referring to “DTC Clearance”.
Recheck DTC referring to “DTC Check”.
When DTC which is recorded at DTC check procedure is detected again after performing DTC clearance, go to “Step
4: ESP ® Check: ” to proceed the diagnosis.
When DTC which is recorded at DTC check procedure is not indicated anymore after performing DTC clearance,
ESP ® control module does not perform the system diagnosis, or temporary abnormality may occur, therefore go to
“Step 2: Driving Test: ” to proceed the diagnosis.
I6JB01460011-02

Downloaded from www.Manualslib.com manuals search engine 4F-14 Electronic Stability Program:
Step 2: Driving Test
Test the vehicle at 40 km/h for more than a minute including left and right turns and check if any trouble symptom
(such as ESP ® warning lamp and/or ABS warning lamp) exists.
If the malfunction DTC is confirmed at ignition switch ON, proceed to Step 3.
If the malfunction DTC is not confirmed at ignition switch ON, proceed to Step 6.
Step 3: DTC Check
Recheck DTC referring to “DTC Check”.
Step 4: ESP ® Check
According to ESP ® Check for the DTC confirmation in Step 3, locate the cause of the trouble, namely in a sensor,
switch, wire harness, connector, actuator assembly or other part and repair or replace faulty parts.
Step 5: Brakes Diagnosis
Check the parts or system suspected as a possible cause referring to “Brakes Symptom Diagnosis in Section 4A” and
based on symptoms appearing on the vehicle (symptom obtain ed through Steps 1 and 2 and repair or replace faulty
parts, if any).
Step 6: Intermittent Problem Check
Check parts where an intermittent trouble is easy to occur (e.g., wire harness, connector, etc.), referring to
“Intermittent and Poor Connection Inspection in Section 00” and related circuit of trouble code recorded in Step 1 to 3.
Step 7: Final Confirmation Test
Confirm that the problem symptom has gone and the ESP ® is free from any abnormal conditions. If what has been
repaired is related to the malfunction DTC, clear the DTC once referrin g to “DTC Clearance” and perform test driving
and confirm that no DTC is indicated.
ESP ® Warning lamp CheckS7RS0B4604022
1) Turn ignition switch ON.
2) Check that ESP ® warning lamp (1) comes ON for
about 2 seconds and then goes off.
If any faulty condition is found, advance to “ESP ®
Warning Lamp Does Not Come ON at Ignition Switch
ON” or “ESP ® Warning Lamp Comes ON Steady”.
ABS Warning Lamp CheckS7RS0B4604046
1) Turn ignition switch ON.
2) Check that ABS warning lamp (1) comes ON for
about 2 seconds and then goes off.
If any faulty condition is found, advance to “ABS
Warning Lamp Does Not Come ON at Ignition Switch
ON” or “ABS Warning Lamp Comes ON Steady”.
1
I6RS0B460009-01
11
I4RS0A450007-01

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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 {

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) 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

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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

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Fail-Safe TableS7RS0B4604023
When any of the following DTC(s) is detected, ESP® system is in fail-safe mode per its DTC and ABS, EBD and/or
TCS / stability functions are deactivate d until the resolution is applied.
DTC No. Fail-safe operation
Fail-safe condition resolutive
ABS EBD TCS/stability
) C1016 {{{ —
) C1017 {{ —
When ESP® control module detects the system as
normal, after ignition switch turned OFF to ON.
)
C1018 {{ —
) C1020 {{ —
) C1021 —*1— When estimated vehicle speed exceeds 10 km/h
(6.5 mile/h) and detects system as normal.
) C1022 —*1—
) C1023 {{ — When ESP® control module detects the system as
normal, after ignition switch turned OFF to ON.
) C1024 {{ —
) C1025 —*1— When estimated vehicle speed exceeds 10 km/h
(6.5 mile/h) and detects system as normal.
) C1026 —*1—
) C1027 *2 {{{ —
) C1028 {{ —When ESP®
control module detects the system as
normal, after ignition switch turned OFF to ON.
) C1031 —*1— When estimated vehicle speed exceeds 10 km/h
(6.5 mile/h) and detects system as normal.
) C1032 —*1—
) C1034 {{ —When ESP®
control module detects the system as
normal, after ignition switch turned OFF to ON.
) C1035 —*1— When estimated vehicle speed exceeds 10 km/h
(6.5 mile/h) and detects system as normal.
) C1036 —*1—
) C1037 {{ ——
) C1038 {{ —
When ESP® control module detects the system as
normal, after ignition switch turned OFF to ON.
)
C1039 {{ —
) C1040 {{ —
) C104
1 ———
) C1042 ———
) C1043 ———
) C1044 ———
) C1045 ———
) C1046 ———
) C1051 ———
) C1052 ———
) C1053 ———
) C1054 ———
) C1055 ———
) C1056 ———
) C1057 —*3—
) C1061 —{—When estimated vehicle speed exceeds 10 km/h
(6.5 mile/h) and detects system as normal.
) C1063 ———
When ESP® control module detects the system as
normal, after ignition switch turned OFF to ON.
)
C1071 ———
) C1073 {{ —
) C1075 {{ — Steering angle sensor calibration completed.
) C1076 {{ —Master cylinder pressure sensor calibration
completed.
) C1078 {{ —Yaw rate / G sensor assembly calibration
completed.
) C1090 {{ —
When ESP® control module detects the system as
normal, after ignition switch turned OFF to ON.
)
C1091 {{ —
) C1094 {{ —
) U1073 {{ —
) U1100 {{ —
) U1126 {{ —
) U1140 {{ —

Downloaded from www.Manualslib.com manuals search engine 4F-20 Electronic Stability Program:
NOTE
•{: Activated
• X: Deactivated
• *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: ESP ® OFF mode is cancelled and all control functions are activated.
• *3: EBD control function is activated only if po wer supply circuit is little low voltage malfunction.

Scan Tool DataS7RS0B4604024
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 comparis on 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 conditioning (if equipped).
• Set the wheel in straight-ahead position and hands off steering wheel.
• Turn OFF all electric loads (except ignition).
• Check that there is no DTC.
Scan Tool Data Definition
Battery Volt (V): Battery Voltage is an analog input
signal read by the ESP ® control module. Certain
ESP ® control module functions 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 LR Wheel Speed (km/h, MPH): Wheel speed
is ESP ® control module internal parameter. It is
computed by reference puls es from the wheel speed
sensor. Brake Switch (ON, OFF):
This switch signal informs
the ESP ® control module whether the brake is active
or not.
Master Cyl Press (MPa): Brake fluid pressure from
brake master cylinder.
G Sensor (lateral) (G): Lateral acceleration is
measured by yaw rate / G sensor assembly and
output to ESP ® control module by pulse signal.
Yaw rate sensor (Deg/s): Yaw rate sensor is measured
by yaw rate / G sensor assembly and output to
ESP® control module by pulse signal.
Steering angle Sen ( °): Steering wheel rotation angle
is measured by steering angle sensor and output to
ESP® control module by pulse signal.
Scan Tool Data Standards Condition
Battery Voltage 10.0 – 16.0 V —
Pump Motor Driver 0.0 V —
RF Wheel Speed 0 km/h, 0.0 MPH Veh icle is in stationary condition.
LF Wheel Speed 0 km/h, 0.0 MPH Veh icle is in stationary condition.
RR Wheel Speed 0 km/h, 0.0 MPH Vehic le is in stationary condition.
LR Wheel Speed 0 km/h, 0.0 MPH Veh icle is in stationary condition.
Brake Switch ON Brake pedal is depressed
OFF Brake pedal is released
Master Cyl Press 0 ± 0.8 MPa Brake pedal is released
G Sensor (lateral) 0 ± 0.1 G Vehicle is on the level
Yaw rate sensor 0 ± 4 deg/s Vehicle is on the level
Steering angle Sen 0 ± 3 ° Front wheels are in straight-ahead
position
Stability control INACTIVE Stability control system is not working
TCS control (brake) INACTIVE Brake function by TCS is not working
TCS control (engine) INACTIVE Torque control by TCS is not working
ESP ® off state (cont) ESP®
ON ESP
® OF
F switch is OFF condition
ESP® OFF ESP ® OFF switch is ON condition
Steering angle Sen Neutral Front wheels are in straight-ahead
position

Downloaded from www.Manualslib.com manuals search engine 4F-24 Electronic Stability Program:
Circuit Description
Operation (ON/OFF) of ABS warning lamp is controlled by ESP® control module through lamp driver module in
combination meter.
If antilock brake system is in good condition, ESP ® control module turns ABS warning lamp ON at the ignition switch
ON, keeps it ON for 2 seconds and then turns it OFF. If an abnormality in the system is detected, ABS warning lamp is
turned ON continuously by ESP ® control module. Also, it is turned ON continuously by lamp driver module when the
connector of ESP ® control module is disconnected.
Troubleshooting
Refer to “Troubleshooting” under “ESP ® Warning Lamp Does Not Come ON at Ignition Switch ON”.
ABS Warning Lamp Comes ON SteadyS7RS0B4604049
Wiring Diagram
Refer to “Wiring Diagram” under “ABS Warning Lamp Does Not Come ON at Ignition Switch ON”.
Circuit Description
Refer to “Circuit Description” u nder “ABS Warning Lamp Does Not Co me ON at Ignition Switch ON”.
Troubleshooting
Refer to “Troubleshooting” under “ESP ® Warning Lamp Comes ON Steady”.
EBD Warning Lamp (Brake Warning Lamp) Comes ON SteadyS7RS0B4604050
Wiring Diagram
[A]
E85
161
15
2
3
4
5
6
7
8
9
10
11
12
13
14
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
3233
34
35
36
37
38
39
40
41
42
43
44
45
46
47WHTGRN
3
E85-13
E85-44REDWHT8 5E46-1E46-2
4
13
8
E85-16
E85-47BLKBLK
1110
12
BLK/ORN
REDWHT
REDWHT
G37-4G37-2
G28-10G28-8
G28-16
12V
12VE85-32E85-1
E85-35
WHT/REDWHT/BLU
GRN/ORN
8
2
1
9 1415
[B]
G37
E46
124
53
67
891011121314124
53
67
891011
1213141516171819202122
[C] G28
12345678910111213141516
17181920212223242526272829303132
12V
12V
6
7E46-5
L01-6
RED/BLK
RED/BLK
G28-31
RED/BLK
I6RS0B460011-01
[A]: ESP ® control module connector (viewed from terminal side) 4. Junction block assembly 10. EBD warning lamp (brake warning lamp)
[B]: BCM connector (viewed from harness side) 5. BCM (included in junction block
assembly) 11. ABS warning lamp
[C]: Combination meter connector (viewed from harness side) 6. Brake fluid level switch 12. Lamp driver module 1. Battery 7. Parking brake switch 13. ESP ® hydraulic unit / control module
assembly
2. Main fuse box 8. CAN driver 14. Junction connector
3. Ignition switch 9. Combination meter 15. To steering angle sensor