Downloaded from www.Manualslib.com manuals search engine 4E-3 ABS:
CAN Communication System DescriptionS7RS0B4501003
Refer to “CAN Communication System Description in Section 1A” for CAN communication system description.
ABS communicates control data with each control module as follows.
ABS Transmission Data
ABS Reception Data
Combination
meter
Transmit DATA
ABS control
moduleECM
Torque request
Wheel speed signal (front right)
Wheel speed signal (front left)
Wheel speed signal (rear right)
Wheel speed signal (rear left)
ABS active
ABS indication on
EBD indication on
I6RS0C450001-01
ABS control moduleDATA
Receive
ECM
Brake pedal switch signal
I6RS0C450002-01
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-4
Schematic and Routing Diagram
ABS SchematicS7RS0B4502001
INPUTOUTPUT
ABS control moduleWheel speed sensor (LF)
Wheel speed sensor (LR)
Wheel speed sensor (RF)Battery Voltage
Ignition Voltage
Pump motor
driver (transistor)
Solenoid valve power
supply driver (transistor)
Solenoid valve
driver (transistor) 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
ABS hydraulic unit/control
module assembly
Wheel speed sensor (RR)
3 7
2
645
8 12
14
21
15
16
1
13
18
17
19
19
11
10
9
CAN driverStop lamp switch
Engine torque
ECM
ABS warning light
EBD warning light
Combination meter
Torque request
ECMWheel speed signal (LF)
Wheel speed signal (LR)
Wheel speed signal (RF)
Wheel speed signal (RR)
ABS active
I6RS0C450003-03
Downloaded from www.Manualslib.com manuals search engine 4E-5 ABS:
ABS Wiring Circuit DiagramS7RS0B4502002
1. ABS hydraulic unit / control module assembly 8.
Pump motor 15. Wheel speed sensor (Right-front)
2. ABS control module 9. Stop lamp switch 16. Wheel speed sensor (Left-front)
3. ABS hydraulic unit 10. ABS warning light 17. Wheel speed sensor (Right-rear)
4. Solenoid valve power supply driver (transistor) 11. EBD warnin g light (Brake warning light) 18. Wheel speed sensor (Left-rear)
5. Solenoid valve driver (transistor) 12. Lamp driver module 19. Battery
6. Pump motor driver (transistor) 13. 4 way joint 20. Ignition switch
7. Solenoid valve 14. Data link connector 21. ECM
[A]
14
1516171819202122232425 1
23456789101112
13
26 E03
a
WHT/BLU
BLKWHT/BLU
M
12V
9
10 11 12
13
BLKE03-14E03-1
E03-13
E03-26
YELBRN
14E03-24
LT GRN/BLKLT GRN
15
WHTWHT/BLK
16
RED
WHTBLK
WHTBLK
WHTBLK
WHTBLKRED/BLK
17
12V
PPL/WHT
18E03-5
1912V
5V
12V
23
24
VCC22
E03-25
E03-15E03-16
E03-19E03-18
E03-22E03-21
WHT/RED
WHT/RED
+BB
GRN/ORN
E03-7
WHT/BLUGRN
1
2
3
4
8
RED/BLK
E03-12
E03-6
RED
WHTE03-10E03-8
REDWHT
20 7
6
529
29
G28-8
G28-10
25
29
E23-3E23-18
GRN/WHT
21
PPL
12V
E23-20
12V
12V
12V
12V
REDWHTE46-1
E46-2
BLK
RED/BLK
RED/BLK
RED
RED
WHT
WHT
27
28
26
29
G37-2
G37-4
REDWHT
I6RS0C450004-01
[A]: Terminal arrangement of ABS hydraulic unit / control module assembly 10. Solenoid valve power supply driver
(transistor) 21. Brake light switch
a: Upside 11. ABS pump motor driver (transistor) 22. Power control unit
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-6
1. Battery12. Pump motor23. Internal memory
2. Main fuse box 13. Solenoid valves24. Solenoid valve driver (transistor)
3. Ignition switch 14. Right-rear wheel speed sensor25. ECM
4. Circuit fuse box 15. Left-rear wheel speed sensor26. BCM
5. Combination meter 16. Right-front wheel speed sensor27. Brake fluid level switch
6. ABS warning light 17. Left-front wheel speed sensor28. Parking brake switch
7. EBD warning light (Brake warning light) 18. Data link connector29. CAN driver
8. Lamp driver module 19. To ECM, SDM and BCM
9. ABS hydraulic unit / control module assembly 20. Stop lamp
Terminal Wire color Circuit
E03 1
WHT/RED ABS pump motor driver (Transistor)
2— —
3— —
4— —
5 PPL/WHT Data link connector
6 WHT CAN communication line (low) for BCM
7 GRN/ORN Ignition switch
8 WHT CAN communication line (low) for ECM
9— —
10 RED CAN communication line (high) for ECM
11 — —
12 RED CAN communication line (high) for BCM
13 BLK Ground
14 WHT/BLU Solenoid valve power supply driver (Transistor)
15 LT GRN/BLK Left–rear wheel speed sensor (–)
16 LT GRN Left–rear wheel speed sensor (+)
17 — —
18 WHT Right–front wheel speed sensor (+)
19 WHT/BLK Right–front wheel speed sensor (–)
20 — —
21 RED/BLK Left–front wheel speed sensor (–)
22 RED Left–front wheel speed sensor (+)
23 — —
24 YEL Right–rear wheel speed sensor (+)
25 BRN Right–rear wheel speed sensor (–)
26 BLK Ground
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 4E-15 ABS:
EBD Warning Light (Brake Warning Light) Comes ON SteadyS7RS0B4504010
Wiring Diagram
Refer to “ABS Warning Light Does Not Come ON at Ignition Switch ON”.
Circuit Description
EBD warning light (brake warn ing light) is controlled by parking brake switch, brake fluid level switch and ABS
hydraulic unit / control module assembly throug h lamp driver module in combination meter.
EBD warning light turns ON when parki ng brake switch is ON and/or brake fluid level is lower than minimum level.
The information of parking brake switch and brake fluid leve l are transmitted from BCM to lamp driver module in
combination meter through CAN communication line.
Troubleshooting 5 1) Turn ignition switch to OFF and measure resistance
between each terminal of “E03-13”, “E03-26” and vehicle
body ground.
Is resistance less than 2
Ω? Go to Step 6. Ground circuit for ABS
hydraulic unit / control
module open or high
resistance.
6 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? Substitute a known-
good combination meter
and recheck. If ABS
warning light remains
ON, substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.Repair or replace.
Step Action Yes No
Step
Action YesNo
1 1) Make sure that:
• Parking brake is completely released.
• Brake fluid level is upper than the minimum level.
Are the check results OK? Go to Step 2.
Release parking brake
completely and/or
replenish brake fluid.
2 1) Turn ignition switch to ON position. Does “ABS” warning light come on steady? Perform “ABS Warning
Light Comes ON
Steady” previously
outlined.Go to Step 3.
3 1) CAN communication circuit between combination meter, ABS hydraulic unit / control module and BCM referring to
“DTC U1073: Control Module Communication Bus Off”.
Is CAN communication circuit in good condition? Substitute a known-
good combination meter
and recheck. If ABS
warning light remains
ON, substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.Repair or replace.
Downloaded from www.Manualslib.com manuals search engine ABS: 4E-20
DTC C1041 / C1045 / C1051 / C1055, DTC C1042 / C1046 / C1052 / C1056: Right-Front / Left-Front /
Right-Rear / Left-Rear Inlet Solenoid Circuit, Right-Front / Left-Front / Right-Rear / Left-Rear Outlet
Solenoid Circuit
S7RS0B4504013
Wiring Diagram
DTC Detecting Condition
The ABS control module monitors the output from the valve.
When the output of each valve exceeds the specified value compared with the signal sent from ABS control module,
this DTC is set.
DTC Troubleshooting
6 4
E03-14
5V12V
7
3
WHT/BLU
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
I6RS0C450010-01
[A]: ABS hydraulic unit / control module assembly
connector (viewed from terminal side) 3. ABS power control module 6. Solenoid valve power supply driver (transistor)
1. Battery 4. Solenoid valve 7. Solenoid valve driver (transistor)
2. Main fuse box 5. ABS hydraulic unit / control module assembly
Step Action 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 “E03-14”.
4) If OK, then measure voltage between terminal “E03-14” of module connector and “E03-26”.
Is it 10 – 14 V? Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.
“WHT/BLU” or “BLK”
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.