Suzuki Grand Vitara JB416 / JB420. Manual — part 214

4E-33 ABS:

ABS Hydraulic Unit / Control Module Assembly
Removal and Installation

S5JB0A4506004

CAUTION

!

Never disassemble ABS hydraulic unit /
control module assembly, loosen blind plug
or remove motor. Performing any of these
prohibited services will affect original
performance of ABS hydraulic unit / control
module assembly.

Removal

1) Disconnect negative cable from battery.
2) Remove ECM referring to “Engine Control Module

(ECM) Removal and Installation in Section 1C”.

3) Disconnect ABS hydraulic unit / control module

assembly connector (1) by pull down the lock (2).

4) Using special tool, loosen flare nuts (1) and

disconnect brake pipes (2) from ABS hydraulic unit /
control module assembly (3).

Special tool
(A): 09950–78220

NOTE
Put bleeder plug cap or the like onto pipe to
prevent fluid from spilling. Do not allow brake
fluid to get on painted surfaces.

5) Disconnect harness clamps (4) from bracket (5).

6) Remove ABS hydraulic unit / control module with

bracket from vehicle by removing bracket bolt and
two bracket nuts.

7) Remove bolt and pull out ABS hydraulic unit / control

module assembly (1) from bracket (3) using flat end
rod or the like (2).

CAUTION

!

• Do not give an impact to hydraulic unit.
• Use care not to allow dust to enter

hydraulic unit.

• Do not place hydraulic unit on its side or

upside down. Handling it in inappropriate
way will affect its original performance.

[A]: Disconnect

C: Pull down to disconnect

[B]: Connect

D: Pull up to connect

2

1

C

D

[A]

[B]

I4RH01450001-01

3

2

4

5

1

(A)

I5JB0A450023-01

2

1

3

I5JB0A450024-01

ABS: 4E-34

Installation

1) Install hydraulic unit / control module assembly by reversing removal procedure.

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): 25 N·m (2.5 kgf-m, 18.0 lb-ft)
ABS hydraulic unit / control module assembly bracket nut (d): 25 N·m (2.5 kgf-m, 18.0 lb-ft)

2) Connect harness clamp to bracket.
3) Install ECM referring to “Engine Control Module (ECM) Removal and Installation in Section 1C”.
4) Connect negative cable at battery.
5) Bleed air from brake system referring to “Air Bleeding of Brake System in Section 4A”.
6) 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 lamp may flash when ignition switch is turned ON position.
Accordingly preform “ABS Hydraulic Unit Operation Check” to stop flashing of ABS warning lamp.

(a)

(b)

(c)

(d)

(a)

(b)

I5JB0A450025-01

4E-35 ABS:

Front Wheel Speed Sensor On-Vehicle
Inspection

S5JB0A4506005

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

1. Wheel speed sensor connector

4. “BLK” wire terminal

2. Resistance (115

Ω)

5. Power supply (12 V)

3. “WHT” wire terminal

V

4

1

3

2

5

I5JB0A450026-03

[A]: Voltage

[B]: Time

I5JB0A450027-01

I5JB0A450028-02

ABS: 4E-36

Front Wheel Speed Sensor Removal and
Installation

S5JB0A4506006

Removal

1) Disconnect negative cable from battery.
2) Disconnect front wheel speed sensor coupler (1).
3) Hoist vehicle and remove wheel.
4) Remove harness clamp, clamp bolts (2) and

grommet (3).

5) Remove front wheel speed sensor (4) from knuckle.

CAUTION

!

• Do not pull wire harness when removing

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.

Installation

1) Check that no foreign material is attached to sensor

(1) and mating encoder (2).

2) Install it by reversing removal procedure.

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)

CAUTION

!

Do not pull or twist wire harness more than
necessary when installing front wheel speed
sensor.

3) Check that there is no clearance between sensor

and knuckle.

2

1

3

4

I5JB0A450029-01

[A]: OK

[B]: NG

[A]

[B]

2

2

(a)

2

1

(b)

I5JB0A450030-01