warning SUZUKI SWIFT 2007 2.G Service Workshop Manual

Downloaded from www.Manualslib.com manuals search engine 4E-21 ABS:
DTC C1057: Power Source CircuitS7RS0B4504014
Wiring Diagram
DTC Detecting Condition
The ABS control module monitors the power source voltage at terminal “E03-14”. When the power source voltage
becomes extremely high or low while vehicle is running at more than 20 km/h (13 MPH), this DTC will be set. As soon
as the power source volta ge becomes normal, the ABS warning light will be turned off and the ABS control module will
return to normal operation, bu t the set DTC will be remain.
DTC Troubleshooting
[A]: ABS hydraulic unit / control module connector (viewed from terminal side) 2. Main fuse box
1. Battery 3. ABS hydraulic unit / control module assembly
E03-14WHT/BLU
1 2
3
BLK
BLK
E03-13
E03-26
[A]
E03
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12V
I6RS0C450011-01
Step
Action YesNo
1 Was “ABS Check” performed? Go to Step 2.Go to “ABS Check”.
2 1) Disconnect ABS hydraulic unit / control module connector with ignition switch turned OFF.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-14” and
“E03-13”.
3) If OK, then turn ignition switch to ON position and measure voltage between terminals “E03-14” and “E03-
13”.
Is voltage 9.7
± 0.3 V or more? Go to Step 5. Go to Step 3.
3 1) Turn ignition switch to OFF. 2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-13” and
“E03-26”.
3) If OK then turn ignition switch to ON and measure resistance between each terminal of “E03-13” and “E03-
26” and vehicle body ground.
Is resistance less than 2
Ω? Go to Step 4. “BLK” wire circuit in
open or high resistance.
4 1) Measure voltage between positive battery terminal and vehicle body ground with engine running.
Is voltage 9.7
± 0.3 V or more? Imperfect short between
“WHT/BLU” wire circuit
and body ground.
Check charging system
referring to “Generator
Test (Undercharged
Battery Check) in
Section 1J”.

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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-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

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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
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I6RS0B460001-01

Downloaded from www.Manualslib.com manuals search engine 4F-6 Electronic Stability Program:
Warning Lamp, Indicator Lamp DescriptionS7RS0B4601003
There are five types of warning lamp and indicator lamp in instrument cluster, which are controlled by ESP ® control
module. They give warning / indication to driver by changing the modes light ON / blinking / light OFF.
The followings are the condition and operation of warning lamps and indicator lamps.
CAN Communication System DescriptionS7RS0B4601004
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description. ESP ®
control module communicates control data with each control module as follows.
ESP ® Control Module Transmission Data
1
245
3
I6RS0B460002-01
1. ESP ® warning lamp 3. ABS warning lamp 5. ESP ® OFF lamp
2. EBD warning lamp (brake warning lamp) 4. SLIP indicator lamp
Warning lamp / Indicator lamp Condition and operation
ABS warning lamp If ABS has abnor mality, the lamp turns “ON”.
EBD warning lamp (brake warning
lamp) • If EBD system has abnormality, the lamp turns “ON”.
• If bake fluid level in reservoir is lower
than minimum level, the lamp turns “ON”.
• Parking brake switch is ON, the lamp turns “ON”.
ESP ® warning lamp If ESP ® systems has abnormality, the lamp turns “ON”.
SLIP indicator lamp • If stability cont rol system and traction control system is active, the lamp blinks
at 5 Hz.
• If Steering angle sensor calibration is incompleted, the lamp blinks at 1 Hz.
ESP ® OFF lamp • If ESP ® OFF switch is turned “ON”, the ESP ® OFF lamp light up. When it is
“ON”, TCS and stability control system functions are controlled not to work.
• ESP® OFF lamp light up to indicate th at brake control of traction control
function is controlled not to act if brake pad temperature is over 320 °C (608 °F)
and any of wheel is in wheel spin condition.
Combination
meter
Transmit DATA
ESP® control
moduleECMSteering angle sensor
Torque request signal
Wheel speed signal (front right)
Wheel speed signal (front left)
ESP® status signal
ABS active signal
ABS indication signal
EBD indication signal
Steering angle neutral position
I7RS0B460004-01

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 4F-10 Electronic Stability Program:
Terminal Arrangement of ESP® Control Module Connector (Viewed from Terminal Side)
7. Combination meter 20. Brake fluid level switch 33. Pump motor driver (transistor)
8. SLIP indicator lamp 21. Parking brake switch 34. Pump motor
9. ESP ® OFF lamp 22. Yaw rate / G sensor assembly 35. Solenoid valve power supply driver
(transistor)
10. ESP ® warning lamp 23. Left-front wheel speed sensor 36. Solenoid valve
11. ABS warning lamp 24. Right-front wheel speed sensor37. Solenoid valve driver (transistor)
12. EBD warning lamp (brake warning lamp) 25. Left-rear wheel speed sensor 38. Master cylinder pressure sensor
13. Lamp driver module 26. Right-rear wheel speed sensor 39. To ECM and P/S control module
Terminal CircuitTerminal Circuit
E85-1 Solenoid valve power supply driver
(transistor) E85-25CAN communication line (low) for yaw
rate / G sensor assembly
E85-2 Right-front wheel speed sensor (–) E85-26—
E85-3 Right-front wheel speed sensor (+) E85-27—
E85-4 —E85-28 —
E85-5 Left-rear wheel speed sensor (+) E85-29CAN communication line (high) for yaw
rate / G sensor assembly
E85-6 Left-rear wheel speed sensor (–) E85-30—
E85-7 ESP® OFF switch input E85-31 Ground for yaw rate / G sensor assembly
E85-8 —E85-32 Pump motor driver (transistor)
E85-9 —E85-33 Data link connector
E85-10 —E85-34 —
E85-11 Right-rear wheel speed sensor (–) E85-35 Ignition switch
E85-12 Right-rear wheel speed sensor (+) E85-36—
E85-13 CAN communication line (high) E85-37Power source for ya
w rate / G sensor
assembly
E85-14 Left-front wheel speed sensor (+) E85-38—
E85-15 Left-front wheel speed sensor (–) E85-39—
E85-16 Ground E85-40—
E85-17 —E85-41 —
E85-18 —E85-42 CAN communication line (high) for ECM
E85-19 —E85-43 —
E85-20 — CAN communication line (low)
E85-21 —E85-45 —
E85-22 —E85-46 CAN communication line (low) for ECM
E85-23 —E85-47 Ground
E85-24 —
E85
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Downloaded from www.Manualslib.com manuals search engine Electronic Stability Program: 4F-11
Component Location
Electronic Stability Program Component LocationS7RS0B4603001
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9
8
11
1415
13 1613
12 1 7
6
5
4
3
2
I7RS0B460008-02
1. ABS fuse 7. Steering angle sensor13. Encoder
2. ESP ® warning lamp 8. ESP® hydraulic unit / control module 14. Yaw rate / G sensor
3. ESP ® OFF lamp 9. ABS motor fuse 15. Front wheel speed sensor
4. EBD warning lamp (brake warning lamp) 10. ABS solenoid fuse 16. ESP® OFF switch
5. ABS warning lamp 11. Stop lamp switch
6. SLIP indicator lamp 12. Rear wheel speed sensor

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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”.
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I6RS0B460009-01
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I4RS0A450007-01