2006 SUZUKI SX4 Abs front

Downloaded from www.Manualslib.com manuals search engine 4E-23 ABS:
DTC C1021 / C1022 / C1025 / C1026 / C1031 / C1032 / C1035 / C1036: Wheel Speed Sensor Circuit /
Sensor or Encoder
S6RW0D4504015
DTC C1021 / C1025 / C1031 / C1035: Right-Front / Left-Front / Right-Rear / Left-Rear Wheel Speed
Sensor Circuit
DTC C1022 / C1026 / C1032 / C1036: Right-Front / Left-Front / Right-Rear / Left-Rear Wheel Speed
Sensor or Encoder
Wiring Diagram
DTC Detecting Condition and Trouble Area
NOTE
When the vehicle was operated in any of the following ways, one of these DTCs may be set even when
the sensor is in good condition. If such possibility is suspected, clear DTC once referring to “DTC
Clearance” and after performing the driving test as described in Step 2 of “ABS Check”, check
whether or not any abnormality exists.
• The vehicle was driven with parking brake pulled.
• Wheel spin occurred while driving.
• Wheel(s) was turned while the vehicle was jacked up.
• The vehicle was stuck.

E08 [A]
1
2
3
4
5
6
7 12
13
14
15
16
17
18
19
20
21
228
9
10
11
23
24
25
26
WHTGRNGRN/ORN
3
4
E08-9
9
12V
8
7
6
5
BLKWHT
BLKWHT
REDRED/BLK
LT GRN/BLKLT GRN
E08-22 E08-11
E08-10 E08-21
E08-23BLK
12V
12V
12V
12V
BLKWHT
BLKWHTWHTWHT/BLK
E08-17 E08-18
YELBRN
E08-19 E08-20
12
I7RW01450007-03
[A]: ABS control module connector (viewed from terminal
side)4. Junction block assembly 8. Right-rear wheel speed sensor
1. Battery 5. Left-front wheel speed sensor 9. ABS hydraulic unit / control module assembly
2. Main fuse box 6. Right- front wheel speed sensor
3. Ignition switch 7. Left-rear wheel speed sensor
DTC Detecting Condition Trouble Area
C1021, C1025, C1031, C1035:
Wheel speed sensor circuit is opened, shorted to power,
ground and/or each other circuit.
C1022, C1026, C1032, C1036:
• Wheel speed is different from other wheel speed
(vehicle speed) for more than specified time.
• Abnormal wheel speed sensor signal is detected for
more than specified time.• Wheel speed sensor
• Wheel speed sensor circuit
• Wheel encoder
• ABS control module

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-24
DTC Troubleshooting
Step Action Yes No
1Was “ABS Check” performed?Go to Step 2. Go to “ABS Check”.
2Check tire condition
1) Check that tire pressure is specifications.
Are they in good condition?Go to Step 3. Replace tire or adjust
tire pressure and
recheck.
3Wheel speed sensor circuit check
1) Disconnect ABS hydraulic unit / control module
connector and applicable wheel speed sensor connector
with ignition switch turned OFF.
2) Check for proper connection to ABS hydraulic unit /
control module connector at applicable terminals and
terminals of applicable wheel speed sensor.
3) If OK then check applicable wheel speed sensor circuit
for open, short and high resistance.
Is each applicable wheel speed sensor circuit in good
condition?Go to Step 4. Repair circuit and
recheck
4Wheel speed sensor check
1) Inspection applicable wheel speed sensor referring to
“Front and Rear Wheel Speed Sensor Inspection”.
Is it in good condition?Go to Step 5. Clean or replace.
5Wheel speed sensor encoder check
1) Inspection applicable wheel speed sensor encoder
referring to “Front Wheel Speed Sensor Encoder On-
Vehicle Inspection” and/or “Rear Wheel Speed Sensor
Encoder On-Vehicle Inspection”.
Is it in good condition?Go to Step 6. Clean or replace wheel
hub assembly.
6Wheel speed sensor signal check
1) Inspection applicable wheel speed sensor referring to
“Front and Rear Wheel Speed Sensor On-Vehicle
Inspection”.
Is it in good condition?Substitute a known-
good wheel hub
assembly and recheck.
If DTC detected,
substitute a known-
good ABS hydraulic unit
/ control module and
recheck.Replace wheel speed
sensor and recheck.

Downloaded from www.Manualslib.com manuals search engine 4E-25 ABS:
DTC C1033: Wheel Speed Sensor DeviationS6RW0D4504016
Wiring Diagram
Refer to “Wiring Diagram” under “DTC C1021 / C1022 / C1025 / C1026 / C1031 / C1032 / C1035 / C1036: Wheel
Speed Sensor Circuit / Sensor or Encoder”.
DTC Detecting Condition and Trouble Area
DTC Troubleshooting DTC Detecting Condition Trouble Area
• Three or more sensor signals seem to be effected by
temporary failure suspicion at the same time.
• One wheel or more are controlled by ABS for more than
specified time.• Wheel speed sensor
• Wheel speed sensor circuit
• Wheel encoder
• ABS control module
• Tire (flat tire)
Step Action Yes No
1Was “ABS Check” performed?Go to Step 2. Go to “ABS Check”.
2Check DTC for ABS
1) Connect scan tool to DLC with ignition switch turned
OFF.
2) Turn ignition switch ON and check DTC for ABS.
Is DTC C1021, C1022, C1025, C1026, C1031, C1032,
C1035 and/or C1036 detected together?Go to “DTC C1021 /
C1022 / C1025 / C1026
/ C1031 / C1032 /
C1035 / C1036: Wheel
Speed Sensor Circuit /
Sensor or Encoder” and
recheck.Go to Step 3.
3Check tire condition
1) Check that tire pressure is specifications.
Are they in good condition?Go to Step 4. Replace tire or adjust
tire pressure and
recheck.
4Wheel speed sensor circuit check
1) Disconnect ABS hydraulic unit / control module
connector and all wheel speed sensor connectors with
ignition switch turned OFF.
2) Check for proper connection to ABS hydraulic unit /
control module connector and terminals of wheel speed
sensor.
3) If OK then check all wheel speed sensors circuit for
open, short and high resistance.
Are wheel speed sensor circuits in good condition?Go to Step 5. Repair circuit and
recheck.
5Wheel speed sensor check
1) Inspection all wheel speed sensors referring to “Front
and Rear Wheel Speed Sensor Inspection”.
Are they in good condition?Go to Step 6. Clean or replace.
6Wheel speed sensor encoder check
1) Inspection all wheel speed sensor encoders referring to
“Front Wheel Speed Sensor Encoder On-Vehicle
Inspection” and “Rear Wheel Speed Sensor Encoder
On-Vehicle Inspection”.
Are they in good condition?Go to Step 7. Clean or replace wheel
hub assembly.
7Wheel speed sensor signal check
1) Inspection all wheel speed sensors referring to “Front
and Rear Wheel Speed Sensor On-Vehicle Inspection”.
Are they in good condition?Substitute a known-
good wheel hub
assembly and recheck.
If DTC detected,
substitute a known-
good ABS hydraulic unit
/ control module and
recheck.Replace wheel speed
sensor and recheck.

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-26
DTC C1041 / C1042 / C1045 / C1046 / C1051 / C1052 / C1055 / C1056: Inlet / Outlet SolenoidS6RW0D4504017
DTC C1041 / C1045 / C1051 / C1055: Right-Front / Left-Front / Right-Rear / Left- Rear Inlet Solenoid
DTC C1042 / C1046 / C1052 / C1056: Right-Front / Left-Front / Right-Rear / Left- Rear Outlet Solenoid
Wiring Diagram
DTC Detecting Condition and Trouble Area
DTC Troubleshooting
WHT/BLU
1 2
5
3
BLK
E08-24
E08-23
6 4
E08 [A]
1
2
3
4
5
6
7 12
13
14
15
16
17
18
19
20
21
228
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10
11
23
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26
I7RW01450008-02
[A]: ABS control module assembly connector (viewed from terminal side) 4. ABS hydraulic unit / control module assembly
1. Battery5. Solenoid valve power supply driver (transistor)
2. Main fuse box6. Solenoid valve driver
3. Solenoid valve
DTC Detecting Condition Trouble Area
DTC C1041, C1042, C1045, C1046, C1051, C1052,
C1055, C1056:
• Solenoid valve circuit is opened, shorted to power,
ground and/or each valve in ABS hydraulic unit / control
module assembly.
• Mismatching solenoid output and solenoid monitor is
detected.• ABS control module
Step Action Yes No
1Was “ABS Check” performed?Go to Step 2. Go to “ABS Check”.
2ABS hydraulic unit / control module power source
circuit check
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 “E08-24” and “E08-
23”.
4) If OK, then measure voltage between terminal “E08-24”
of module connector and “E08-23”.
Is it 10 – 14 V?Substitute a known-
good ABS hydraulic unit
/ control module
assembly and recheck.“WHT/BLU” or “BLK”
circuit open or high
resistance.

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-34
Installation
1) Install hydraulic unit / control module assembly by
reversing removal procedure noting the following.
Install ABS hydraulic unit / control module assembly
bracket bolt as follows.
a) Tighten bracket bolt (1) and (2) by hand.
b) Then tighten bracket bolt to specified torque.
Tightening order (1) → (2)
Tightening torque
Brake pipe flare nut (a): 16 N·m (1.6 kgf-m, 11.5
lb-ft)
ABS hydraulic unit / control module assembly
bolt (b): 9 N·m (0.9 kgf-m, 6.5 lb-ft)
ABS hydraulic unit / control module assembly
bracket bolt (c): 26 N·m (2.6 kgf-m, 19.0 lb-ft)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 Unit 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 and Rear Wheel Speed Sensor On-Vehicle
Inspection
S6RW0D4506005
Output Voltage Inspection
1) Disconnect negative (–) cable from battery.
2) Hoist vehicle a little.
3) Disconnect wheel speed sensor connector.
4) Set up measuring device 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.

I6RW0C450011-01
1. Wheel speed sensor connector 4. “BLK” wire terminal
2. Resistance (115Ω) 5. Power supply (12 V)
3. “WHT” wire terminal
V
41
3
2
5
I5JB0A450026-03

Downloaded from www.Manualslib.com manuals search engine 4E-35 ABS:
5) 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 – 960 mV
6) 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 – 1930 mV
Low voltage “b”: 680 – 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
Front Wheel Speed Sensor Removal and
Installation
S6RW0D4506006
CAUTION!
• Do not pull wire harness when removing
and installing front wheel speed sensor.
• Do not cause damage to surface of front
wheel speed sensor and do not allow dust,
etc. to enter its installation hole.

Removal
1) Disconnect negative (–) cable from battery.
2) Disconnect front wheel speed sensor connector (1).
3) Hoist vehicle and remove wheel.
4) Remove harness clamp, clamp bolt (2).
5) Remove front wheel speed sensor (3) from knuckle.
[A]: Voltage [B]: Time
I5JB0A450027-01
I5JB0A450028-02
3
1
2
I5RW0A450023-01

Downloaded from www.Manualslib.com manuals search engine ABS: 4E-36
Installation
1) Check that no foreign material is attached to sensor
(1) and wheel speed sensor encoder (included in
wheel hub assembly).
2) Install it by reversing removal procedure.
NOTE
Before fitting wheel speed sensor, be sure to
silicon grease to its O-ring.

Tightening torque
Front wheel speed sensor bolt (a): 11 N·m (1.1
kgf-m, 8.0 lb-ft)
Front wheel speed sensor harness clamp bolt
(b): 11 N·m (1.1 kgf-m, 8.0 lb-ft)
3) Check that there is no clearance between sensor
and knuckle.
Front and Rear Wheel Speed Sensor InspectionS6RW0D4506007
Check sensor for damage.
If any malcondition is found, replace.
Rear Wheel Speed Sensor Removal and
Installation (4WD Model)
S6RW0D4506008
CAUTION!
Rear wheel speed sensor is included in rear
wheel hub assembly. If rear wheel speed
sensor needs to be replaced, replace it as a
rear wheel hub assembly.

For removal and Installation of rear wheel speed sensor
(included in rear wheel hub), refer to “Rear Wheel Hub
Assembly Removal and Installation in Section 2C”.
Rear Wheel Speed Sensor Removal and
Installation (2WD Model)
S6RW0D4506009
CAUTION!
• Do not pull wire harness when removing
and installing rear wheel speed sensor.
• Do not cause damage to surface of rear
wheel speed sensor and do not allow dust,
etc. to enter its installation hole.

Removal
1) Disconnect negative (–) cable from battery.
2) Hoist vehicle, and remove wheel.
3) Disconnect rear wheel speed sensor connector.
4) Remove harness clamp.
5) Remove rear wheel speed sensor from wheel hub.
Installation
1) Check that no foreign material is attached to sensor
and encoder (included in wheel hub assembly).
2) Install it by reversing removal procedure.
NOTE
Before fitting wheel speed sensor, be sure to
silicon grease to its O-ring.

Tightening torque
Rear wheel speed sensor bolt: 11 N·m (1.1 kgf-
m, 8.0 lb-ft)
3) Check that there is no clearance between sensor
and wheel hub.[A]: OK [B]: NG
1
2
(b)
(a)
I5RW0A450025-01
[A][B]
11
I5RW0A450024-01
I5JB0A450031-01
[A]: OK [B]: NG
[A][B]
11
I5RW0A450024-01

Downloaded from www.Manualslib.com manuals search engine 4E-37 ABS:
Front Wheel Speed Sensor Encoder On-Vehicle
Inspection
S6RW0D4506010
Before inspecting front wheel speed sensor encoder,
remove front drive shaft referring to “Front Drive Shaft
Assembly Removal and Installation in Section 3A”.
• Check sensor encoder (1) for crack, damage or
deformation.
• Turn wheel and check if sensor encoder rotation is
free from eccentricity and looseness.
• Check that no foreign material is attached.
If any faulty is found, clean or replace. Refer to “Front
Wheel Hub, Steering Knuckle and Wheel Bearing
Removal and Installation in Section 2B”.
Front Wheel Speed Sensor Encoder Removal
and Installation
S6RW0D4506011
CAUTION!
Front wheel speed sensor encoder is
included in front wheel hub assembly. If front
wheel speed sensor encoder needs to be
replaced, replace it as a front wheel hub
assembly.

For removal and installation of front wheel hub
assembly, referring to “Front Wheel Hub, Steering
Knuckle and Wheel Bearing Removal and Installation in
Section 2B”.
Rear Wheel Speed Sensor Encoder On-Vehicle
Inspection
S6RW0D4506012
For 4WD model
Refer to “Rear Wheel Speed Sensor On-Vehicle
Inspection”.
For 2WD model
Before inspecting rear wheel speed sensor encoder,
remove rear wheel speed sensor referring to “Rear
Wheel Speed Sensor Removal and Installation (2WD
Model)”.
• Check encoder (1) for crack, damage or deformation.
• Turn wheel and check if encoder rotation is free from
eccentricity and looseness.
• Check that no foreign material is attached.
If any faulty is found, clean or replace. Refer to “Rear
Wheel Hub Assembly Removal and Installation in
Section 2C”.
Rear Wheel Speed Sensor Encoder Removal
and Installation
S6RW0D4506013
CAUTION!
Rear wheel speed sensor encoder is included
in rear wheel hub assembly. If rear wheel
speed sensor encoder needs to be replaced,
replace it as a rear wheel hub assembly.

For removal and installation of front wheel hub
assembly, referring to “Rear Wheel Hub Assembly
Removal and Installation in Section 2C”.
1
I5RW0A450026-01