Speed sensor SUZUKI GRAND VITARA 2004 2.G Service User Guide

YH4
GRAND
VITARA
1. Clamp
2. Upper rod
1. Upper rod front bolt
2. Nut
3. Upper rod
4. Wheel speed sensor
harness bracket
(Toward outside of body)1. Upper rod
2. Bolt
5. Upper rod rear bolt
6. Washer
7. Body center
8. Front side
REAR SUSPENSION 3E-9
UPPER ROD
REMOVAL
1) Hoist vehicle and remove rear wheel.
2) If equipped with ABS, disconnect wheel speed sensor harness
clamp from left upper rod.
3) Remove upper rod.
INSTALLATION
1) Install upper rod to chassis frame and axle housing, referring to
figure for installing direction of bolts.
Nuts should not be tightened.
2) See figure for distinction of installing direction of left side upper
rod for vehicle equipped with ABS.
3) Connect wheel speed sensor harness clamp to upper rod (if
equipped with ABS).
4) Lower hoist and with vehicle in non-loaded condition, tighten
front bolt and rear nut of upper rod to specified torque.
Tightening Torque
(a): 90 N
.m (9.0 kg-m, 65 lb-ft)

YH4
GRAND
VITARA
1. Bearing retainer
2. Parking brake shoe
lever
3. Clearance1. Wheel speed sensor
1
L
REAR SUSPENSION 3E-11
4) Remove wheel speed sensor from rear axle housing (if
equipped with ABS).
CAUTION:

Do not pull wire harness or twist more than necessary
when removing rear wheel speed sensor.

Do not cause damage to surface of rear wheel speed
sensor or pole piece and do not allow dust, etc. to enter
its installation hole.
5) Check to ensure that there is clearance between rear wheel
bearing retainer and parking brake shoe lever. If no clearance
is found, loosen cable locking nut further to obtain clearance.
6) Using special tools (B) & (C) indicated below, draw out axle
shaft.
NOTE:
Use care not to pull brake back plate along with shaft.
CAUTION:
Pull out axle shaft using care so that upper and lower
brake struts and parking cable are not caught.
Special Tool
(C): 09943-35512
(B): 09942-15510
7) Rear axle shaft that was drawn out.
Shaft length ªLº:
Left side: 711.5 mm (28.0 in.)
Right side: 757.5 mm (29.8 in.)
8) If equipped with ABS, in order to remove sensor rotor from re-
tainer ring, grind with a grinder one part of the sensor rotor as
illustrated till it becomes thin.

YH4
GRAND
VITARA
1. Sensor rotor
1. Axle housing
1. Bearing retainer
(b)
3E-14 REAR SUSPENSION
5) For vehicle with ABS, press-fit new sensor rotor as shown.
NOTE:
Use care not to cause any damage to outside of retainer
ring.
6) Apply grease to axle shaft inner oil seal lip as shown.
ªAº: Grease 99000-25010
7) Apply sealant to mating surface of bearing retainer with brake
back plate.
NOTE:
Make sure to remove old sealant before applying it anew.
ªBº: Sealant 99000-31110
8) Install rear axle shaft to rear axle housing and tighten bearing
retainer nuts to specified torque.
NOTE:
When installing rear axle shaft, be careful not to cause
damage to oil seal lip in axle housing.
Tightening Torque
(a): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
9) Tighten wheel speed sensor bolt to specified torque (if
equipped with ABS).
Tightening Torque
(b): 21 N
.m (2.1 kg-m, 15.5 lb-ft)
10) Refill rear axle (differential) housing with new specified gear oil.
Refer to SECTION 7F for refill.
11) Install brake drum. (For details, refer to BRAKE DRUM
INSTALLATION in SECTION 5.)

YH4
GRAND
VITARA
1. Brake pipe flare nut
2. Brake pipe
3. Brake back plate
1. Bearing retainer
2. Parking brake shoe
lever
3. Clearance1. Nut 1. Wheel speed sensor
2. Wheel speed sensor coupler
3. Wheel speed sensor harness clamp
4. Wheel speed sensor harness
3E-16 REAR SUSPENSION
REAR AXLE HOUSING
REMOVAL
1) Drain differential gear oil.
Carry out steps 2) to 7) and 15) to 18) on both right and left
wheels.
Note that left wheel and its related parts are used in illustrations
in this section.
2) Remove rear brake drum. (Refer to steps 1) to 5) of BRAKE
DRUM REMOVAL.)
3) Disconnect brake pipe from wheel cylinder. With right side wheel
cylinder, disconnect 2 brake pipes.
4) For vehicle with ABS, disconnect wheel speed sensor coupler
and remove wheel speed sensor with its harness.
5) Remove rear wheel bearing retainer nuts from rear axle hous-
ing.
6) Check to ensure that there is clearance between rear wheel
bearing retainer and parking brake shoe lever. If no clearance
is found, loosen cable locking nut further to obtain clearance.

YH4
GRAND
VITARA
1. Flexible hose
2. E-ring
3. Brake pipe
4. Cross member1. LSPV stay
1. Hose
2. Axle housing
1. Propeller shaft
2. Differential carrier
REAR SUSPENSION 3E-17
7) Using special tools (B) & (C) indicated below, draw out axle
shafts. For vehicle equipped with ABS, remove wheel speed
sensor from axle housing before drawing out axle shaft.
NOTE:
Use care not to pull brake back plate along with shaft.
Special Tool
(C): 09943-35512
(B): 09942-15510
8) For vehicle without ABS, remove LSPV stay from axle housing.
9) Remove brake back plate from rear axle housing.
10) Disconnect brake pipe from flexible hose and remove E-ring
(front side).
11) Remove brake pipe clamps and pipes from axle housing and
disconnect breather hose from axle housing.
12) Disconnect propeller shaft and remove propeller shaft from
transmission.

YH4
GRAND
VITARA
1. Axle housingªAº
(c)
1. Axle housing
3E-20 REAR SUSPENSION
7) For vehicle with ABS, connect wheel speed sensor coupler and
install harness.
8) Install propeller shaft and torque nuts to specification.
Tightening Torque
(b): 50 N
.m (5.0 kg-m, 36.5 lb-ft)
9) Remove floor jack from axle housing and connect breather
hose onto axle housing and clamp it securely.
10) Connect brake pipes onto axle housing and clamp them se-
curely.
For clamping positions, refer to SECTION 5A of this manual.
11) Connect brake flexible hose to bracket on axle housing and se-
cure it with E-ring.
12) Install LSPV stay to axle housing, tighten LSPV stay bolt to
specified torque.
And adjust LSPV referring to ªLSPV ASSEMBLY INSPEC-
TION AND ADJUSTMENTº in SECTION 5A.
Tightening Torque
(c): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
13) Connect brake pipe to brake flexible hose and tighten brake
pipe flare nut to specified torque.
Tightening Torque
(d): 16 N
.m (1.6 kg-m, 11.5 lb-ft)
14) Clean mating surface of axle housing (right & left) and brake
back plate, then apply sealant as shown.
ªAº: Sealant 99000-31110
15) Apply grease to axle shaft inner oil seal lip as shown.
ªAº: Grease 99000-25010

YH4
GRAND
VITARA
3. Container 1. Plug cap
2. Vinyl tube
1. Bearing retainer
(e)
(f)
(g)
REAR SUSPENSION 3E-21
16) Apply sealant to mating surface of bearing retainer with brake
back plate.
NOTE:
Make sure to remove old sealant before applying it anew.
ªBº: Sealant 99000-31110
17) Install rear axle shaft to rear axle housing and tighten bearing
retainer nuts to specified torque.
NOTE:
When installing rear axle shaft, be careful not to cause
damage to oil seal lip in axle housing.
Tightening Torque
(e): 23 N
.m (2.3 kg-m, 17.0 lb-ft)
18) For vehicle with ABS, tighten wheel speed sensor bolt to speci-
fied torque.
Tightening Torque
(f): 21 N
.m (2.1 kg-m, 15.5 lb-ft)
19) Connect brake pipes to wheel cylinders (right & left) and tighten
brake pipe flare nuts to specified torque.
Tightening Torque
(g): 16 N
.m (1.6 kg-m, 11.5 lb-ft)
20) Install brake drum (right & left). For details, refer to SECTION
5C ªBRAKE DRUM INSTALLATIONº.
21) Refill differential gear housing with new specified gear oil. Re-
fer to ªON-VEHICLE SERVICEº in SECTION 7F for refill.
22) Fill reservoir with brake fluid and bleed brake system.(For
bleeding operation, see SECTION 5.)

YH4
GRAND
VITARA
Diagnostic Trouble Code (DTC) Table 5E1-14. . .
System Circuit 5E1-15. . . . . . . . . . . . . . . . . . . . . . .
Table ± A ªABSº Warning Lamp Circuit
Check ± Lamp does not come ªONº
at ignition switch on 5E1-16. . . . . . . . . . . . . . . . . .
Table ± B ªABSº Warning Lamp Circuit
Check ± Lamp comes ªONº steady 5E1-17. . . .
Table ± C ªABSº Warning Lamp Circuit
Check ± The lamp flashes continuously
while ignition switch is on5E1-18 . . . . . . . . . . . . . .
Table ± D Code (DTC) is not Outputted
even with Diag. Switch Terminal
Connected to Ground 5E1-19. . . . . . . . . . . . . . . .
Table ± E EBD Warning Lamp (Brake
Warning Lamp) Check-lamp Comes
ªONº Steady 5E1-20. . . . . . . . . . . . . . . . . . . . . . . .
DTC 15 ± G Sensor Circuit 5E1-21. . . . . . . . . . . .
DTC 21, 22, 25, 26, 31, 32, 35 or 36
± Wheel Speed Sensor Circuit 5E1-23. . . . . . . .
DTC 41, 45 or 56 ± Solenoid Circuit 5E1-26. . . . .
DTC 57 ± Solenoid and Pump Motor
Power Source Circuit 5E1-27. . . . . . . . . . . . . . . .
DTC 61 ± ABS Pump Motor Circuit 5E1-28. . . . . .
DTC 63 ± ABS Fail-Safe Relay Circuit 5E1-29. . .
DTC 71 ± ABS Control Module 5E1-30. . . . . . . . .
ON-VEHICLE SERVICE5E1-31 . . . . . . . . . . . . . . . .
Precaution 5E1-31. . . . . . . . . . . . . . . . . . . . . . . . . . .
ABS Hydraulic Unit Operation Check 5E1-31. . . .
ABS Hydraulic Unit / Control Module
Assembly 5E1-32. . . . . . . . . . . . . . . . . . . . . . . . . .
Hydraulic unit inspection 5E1-32. . . . . . . . . . . . . Removal 5E1-32. . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5E1-33. . . . . . . . . . . . . . . . . . . . . . . . .
Front Wheel Speed Sensor 5E1-34. . . . . . . . . . . .
Output voltage inspection 5E1-34. . . . . . . . . . . .
Removal 5E1-35. . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor inspection 5E1-35. . . . . . . . . . . . . . . . . .
Sensor rotor inspection 5E1-35. . . . . . . . . . . . . .
Installation 5E1-36. . . . . . . . . . . . . . . . . . . . . . . . .
Front Sensor Rotor 5E1-36. . . . . . . . . . . . . . . . . . .
Removal 5E1-36. . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5E1-36. . . . . . . . . . . . . . . . . . . . . . . . .
Rear Wheel Speed Sensor 5E1-37. . . . . . . . . . . .
Output voltage inspection 5E1-37. . . . . . . . . . . .
Removal 5E1-37. . . . . . . . . . . . . . . . . . . . . . . . . .
Sensor inspection 5E1-38. . . . . . . . . . . . . . . . . .
Sensor rotor inspection 5E1-38. . . . . . . . . . . . . .
Installation 5E1-38. . . . . . . . . . . . . . . . . . . . . . . . .
Rear Sensor Rotor 5E1-39. . . . . . . . . . . . . . . . . . . .
Removal 5E1-39. . . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5E1-39. . . . . . . . . . . . . . . . . . . . . . . . .
G Sensor 5E1-40. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Removal 5E1-40. . . . . . . . . . . . . . . . . . . . . . . . . .
Inspection 5E1-40. . . . . . . . . . . . . . . . . . . . . . . . .
Installation 5E1-40. . . . . . . . . . . . . . . . . . . . . . . . .
Transfer 4WD Switch 5E1-41. . . . . . . . . . . . . . . . .
TIGHTENING TORQUE
SPECIFICATIONS5E1-41 . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS5E1-42 . . . . . . . . . . . . . . . . . . . . . .
5E1-2 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
GENERAL DESCRIPTION
The ABS (Antilock Brake System) controls the fluid pressure applied to the wheel cylinder of each brake from the
master cylinder so that each wheel is not locked even when hard braking is applied. This ABS is a 4-wheel type
which controls the fluid pressure applied to the wheel cylinder of each of the four brakes to prevent each wheel
from getting locked.
The component parts of this ABS includes following parts in addition to those of the conventional brake system.

Wheel speed sensor which senses revolution speed of each wheel and outputs its signal.

In this ABS, ABS hydraulic unit (actuator assembly), ABS control module, pump motor relay and fail-safe relay
are combined as one component.

ABS control module which sends operation signal to ABS hydraulic unit to control fluid pressure applied to each
wheel cylinder based on signal from each wheel speed sensor so as to prevent wheel from locking.

ABS hydraulic unit which operates according to signal from ABS control module to control fluid pressure applied
to wheel cylinder of each of 4 wheels.

Fail-safe (solenoid valve) relay which supplies power to solenoid valve in ABS hydraulic unit and pump motor
relay.

Pump motor relay which supplies power to pump motor in ABS hydraulic unit.

ªABSº warning lamp which lights to inform abnormality when system fails to operate properly.

G sensor which detects body deceleration speed. (For 4WD model only)
This ABS is equipped with Electronic Brake force Distribution (EBD) system that controls a fluid pressure of rear
wheels to best condition, which is the same function as that of proportioning valve, by the signal from wheel sensor
independently of change of load due to load capacity and so on. And if the EBD system fails to operate properly,
the brake warning lamp lights to inform abnormality.

YH4
GRAND
VITARA
1. Wheel speed sensor (Right-front)
2. Stop lamp switch
3. ABS control module
4. Wheel speed sensor (Right-rear)
5. Diagnosis connector
6. Data link connector7. Wheel speed sensor (Left-rear)
8. ªABSº warning lamp
9. ABS pump motor relay
10. ABS fail-safe relay (Solenoid valve relay)
11. Lamp drive module
12. Wheel speed sensor (Left-front)13. ABS hydraulic unit
14. G sensor (For 4WD model only)
15. 4WD switch (For 4WD model only)
16. ABS hydraulic unit / control module assembly
(with ABS pump motor & fail-safe relays)
17. ªEBDº warning lamp (Brake warning lamp)
Wheel speed sensor (LR)
Wheel speed sensor (LF)
Wheel speed sensor (RF)
Wheel speed sensor (RR)
Stop lamp switch
G sensor (For 4WD model only)
Diag. switch terminal
Battery Voltage
4WD switch (For 4WD model only)
Pump motor relay
Pump motor
LF inlet solenoid
LF outlet solenoid
LR inlet solenoid
LR outlet solenoid
Rear inlet solenoid
Rear outlet solenoid
ªABSº warning lamp
Brake warning lamp
Data link connector
Fail-safe relay
Hydraulic unit
OUTPUTINPUT
ABS control
module
ABS hydraulic unit / control
module assembly
PCM or ECMIdle up
5E1-4 ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL)
SYSTEM SCHEMATIC

YH4
GRAND
VITARA
1. Wheel speed sensor
(Right-front)
2. Stop lamp switch
3. Data link connector
4. ªABSº warning lamp
5. Wheel speed sensor
(Right-rear)6. Wheel speed sensor
(Left-rear)
7. Ground
8. Diagnosis connector (Black connector)
9. Wheel speed sensor
(Left-front)10. ABS hydraulic unit/control module assembly
with ABS pump motor relay
and fail-safe relay
11. G sensor (For 4WD model only)
12. Wheel speed sensor rotor (ring)
13. 4WD switch (For 4WD model only)
14. EBD warning lamp (Brake warning lamp)
LH steering vehicle
RH steering vehicle
ANTILOCK BRAKE SYSTEM (ABS) (OPTIONAL) 5E1-5
ABS COMPONENT PARTS LOCATION