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
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-14
ABS Warning Light Comes ON SteadyS7RS0B4504009
Wiring Diagram
Refer to “ABS Warning Light Does Not Come ON at Ignition Switch ON”.
Circuit Description
Operation (ON/OFF) of ABS wa rning light is controlled by ABS contro l module through lamp driver module in
combination meter.
If the Antilock brake system is in good condition, ABS control module turns ABS warning lig ht 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 light is
turned ON continuously by ABS c ontrol module. Also, it is turned ON continuously by la mp driver module when the
connector of ABS control module is disconnected.
Troubleshooting 4 Check CAN communication circuit between combination
meter and ABS control module referring to “DTC U1073:
Control Module Communication Bus Off”.
Is CAN communication circuit in good condition? Go to Step 5.
Repair or replace.
5 1) Remove combination meter wit h ignition switch turned
OFF.
2) Check for proper connection to “RED/BLK” and “BLK/ ORN” wire of combinat ion meter connector.
3) If OK, turn ON ignition switch and measure voltage at “PPL/RED” wire of combi nation meter connector and
vehicle body ground.
Is it 10 – 14 V? Go to Step 6.
Repair power supply
circuit for combination
meter.
6 1) Measure resistance between “BLK/ORN” wire of combination meter connector and vehicle body ground.
Is resistance less than 2
Ω? Replace combination
meter.
“BLK/ORN” circuit open
or high resistance.
Step Action Yes No
Step
Action YesNo
1 1) Perform diagnostic trouble code check.
Is there any DTC(s)? Go to applicable DTC
diag. flow.
Go to Step 2.
2 Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
circuit for short to
ground.
3 1) Turn ignition switch to OFF.
2) Disconnect ABS control module connector.
3) Check for proper connection to ABS control module connector at terminals “E03-7”, “E03-13” and “E03-26”.
4) If OK then turn ignition switch to ON position and measure voltage between terminal “E03-7” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS control module connector at terminals “E03-1” and “E03-14”.
3) If OK then turn ignition switch to ON position and measure voltage between each terminal of “E03-1”,
“E03-14” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5.
“WHT/RED” and/or
“WHT/BLU” circuit
open.
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-16
Serial Data Link Circuit CheckS7RS0B4504011
Inspection
WHT/BLU
BLK12V
12
BLK
E03-14
E03-13
E03-26
WHT/RED
GRN/ORNE03-7WHT/BLUGRN
1
2
3
47
RED/BLK
6
5
11
E03-112V
[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
BLK/ORN
PPL/WHT
8E03-5
912V
+BB
G
B
G1
E03-12
E03-6
REDWHT
11
G28-8
G28-10
REDWHTE46-1
E46-2RED
RED
WHT
WHT
10
11
G37-2
G37-4
I6RS0C450008-01
[A]: ABS hydraulic unit / control module connector (viewed from terminal side)
1. Battery 4. Circuit fuse box 7. Lamp driver module 10. BCM
2. Main fuse box 5. Combination meter 8. Data link connector (DLC) 11. CAN driver
3. Ignition switch 6. ABS warning light 9. To ECM, BCM and SDM 12. ABS hydraulic unit / control module assembly
Step Action YesNo
1 1) Turn ignition switch to ON position.
Does ABS warning light come ON? Go to Step 2.
Go to Step 6.
2 1) Turn ignition switch to OFF position. Are main fuses for ABS pump motor and ABS solenoid in
good condition? Go to Step 3.
Replace fuse and check
for short.
3 1) Disconnect ABS hydraulic unit / control module connector.
2) Check for proper connection to ABS hydraulic unit / control module connector at terminal “E03-7”.
3) If OK then turn ignition switch to ON position and measure voltage between terminal “E03-7” and vehicle
body ground.
Is it 10 – 14 V? Go to Step 4.
“GRN/ORN” wire circuit
open.
4 1) Turn ignition switch to OFF position. 2) Check for proper connection to ABS hydraulic unit / control module connector at terminals “E03-1” and “E03-
14”.
3) If OK then turn ignition switch to ON position and measure voltage between each terminal of “E03-1”,
“E03-14” and vehicle body ground.
Are they 10 – 14 V? Go to Step 5.
“WHT/RED” and / or
“WHT/BLU” wire circuit
open.
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-22
DTC C1061: ABS Pump Motor and/or Motor Driver CircuitS7RS0B4504015
Wiring Diagram
DTC Detecting Condition
The ABS control module monitors the voltage at monitor terminal of pump motor circuit constantly with the ignition
switch turned ON. It sets this DTC when the voltage at the monitor terminal does not become high / low according to
ON/OFF commands to the motor driver (transistor) of the module (does not follow these commands).
DTC Troubleshooting 5 1) Measure voltage between terminals “E03-14” and “E03-
13” with engine running.
Is voltage 18
± 1.0 V or less? Poor connection of
“E03-14” and/or “E03-
13” terminals. If the
terminals are in good
condition, substitute a
known-good ABS
hydraulic unit / control
module and recheck.Check charging system
referring to “Generator
Test (Overcharged
Battery Check) in
Section 1J”.
Step Action Yes No
WHT/RED
1 2
5
BLK
BLK
E03-13
E03-26
[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
M
3
4E03-1
12V
12V
I6RS0C450012-01
[A]: ABS hydraulic unit / control module connector (viewed from terminal side) 2. Main fuse box 4. ABS pump motor
1. Battery 3. Pump motor driver (transistor) 5. ABS hydraulic unit / control module assembly
StepAction YesNo
1 Was “ABS Check” performed? Go to Step 2.Go to “ABS Check”.
2 1) Turn Ignition switch to OFF position.
2) Disconnect ABS hydraulic unit / control module connector.
3) Check for proper connection to ABS hydraulic unit / control module connector at terminal “E03-1”.
4) If OK, then measure voltage between terminal “E03-1” of module connector and body ground.
Is it 10 – 14 V? Go to Step 3.
“WHT/RED” circuit
open.
3 Measure resistance between terminal “E03-13” and “E03- 26” of ABS hydraulic unit / co ntrol module connector and
body ground.
Is resistance less than 1
Ω? Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
Ground circuit for ABS
hydraulic unit / control
module open or high
resistance.
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 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.
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
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.
1
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
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