Suzuki Grand Vitara JB419. Service manual — part 103

Electronic Stability Program: 4F-45

Repair Instructions

Hydraulic Unit Operation Check

S5JB0B4606025

Refer to “Hydraulic Unit Operation Check in Section 4E”.

Sensor Calibration

S5JB0B4606087

CAUTION

!

If any DTC(s) other than C1075, C1076, C1077
or C1078 are detected. Repair the detected
DTC first.

NOTE
Steering angle sensor calibration is needed
when battery, dome fuse or the steering
angle sensor is removed.
This sensor calibration can be done with/
without SUZUKI Scan Tool.
When ESP

® control module and/or yaw rate /

G sensor assembly is removed, sensor
calibration is needed with SUZUKI Scan Tool.

Sensor Calibration (Using SUZUKI Scan Tool)

1) Set steering wheel in straight-ahead position.
2) Connect SUZUKI scan tool to data link connector

(DLC) (1) with ignition switch OFF.

Special tool
(A): SUZUKI scan tool

6

CAN communication circuit check
1) Disconnect connectors of all control modules

communicating by means of CAN.

Is each CAN communication circuit between disconnected
control modules (other than ESP

®

control module and BCM)

opened, shorted or high resistance?

Repair or replace the
CAN communication
line.

Go to Step 7.

7

DTC check for ESP

®

1) Connect connectors of disconnected control modules

communicating by means of CAN.

2) Disconnect each connector and check DTC for ESP

® in

turn.
• ECM
• BCM
• 4WD control module
• Immobilizer control module (ICM) (if equipped)
• Combination meter
• Steering angle sensor

Is DTC U1139 detected?

Check ESP

® control

module power and
ground circuit. If circuits
are OK, substitute a
known-good ESP

®

hydraulic unit / control
module assembly and
recheck.

Check applicable
control module power
and ground circuit. If
circuit is OK, substitute
a known-good
applicable control
module and recheck.

Step

Action

Yes

No

(A)

1

I5JB0A450008-01

4F-46 Electronic Stability Program:

3) Turn ignition switch to ON position and confirm that

only any of DTC(s) C1075, C1076, C1077 and/or
C1078 is detected. If any other DTC are detected,
repair the detected DTC.

4) Park and level the vehicle with parking brake, stop

engine with ignition switch ON, set steering in
straight and without stepping on the brake.

CAUTION

!

Hold the above condition in Step 4) to
calibrate sensor correctly until sensor
calibration completed.

5) Select menu “SENSOR CALIBRATION” under

“MISC. TEST” mode of SUZUKI scan tool and
calibrate sensor. Refer to scan tool operator's
manual for further derails.

6) After completing the calibration, turn ignition switch

to OFF position and disconnect SUZUKI scan tool
from DLC.

Steering Angle Sensor Calibration (Not Using
SUZUKI Scan Tool)

CAUTION

!

When power is not supplied to the steering
angle sensor by removing battery or fuse,
steering angle sensor should be calibrated.

1) Set steering wheel in straight-ahead position.
2) Connect battery terminals and/or fuse and start

engine.

CAUTION

!

When power is not supplied to the steering
angle sensor by removing battery or fuse,
DTC C1075 is detected and SLIP indicator
lamp (1) flashes.
If DTC other than C1075 is detected, SLIP
indicator lamp flushes and other indicator
illuminate. In that case, repair the detected
DTC first.

3) Drive vehicle straight on level ground at 15 km/h (9.5

mph) or above for few seconds without spinning
wheels. And confirm that SLIP indicator lamp is OFF.

ESP

® Hydraulic Unit / Control Module

Assembly On-Vehicle Inspection

S5JB0B4606089

Refer to “ABS (ESP

®) Hydraulic Unit / Control Module

Assembly On-Vehicle Inspection in Section 4E”.

ESP

® Hydraulic Unit / Control Module

Assembly Removal and Installation

S5JB0B4606090

Refer to “ABS (ESP

®) Hydraulic Unit / Control Module

Assembly Removal and Installation in Section 4E”.

Front Wheel Speed Sensor On-Vehicle
Inspection

S5JB0B4606091

Refer to “Front Wheel Speed Sensor On-Vehicle
Inspection in Section 4E in related manual”.

Front Wheel Speed Sensor Removal and
Installation

S5JB0B4606092

Refer to “Rear Wheel Speed Sensor Removal and
Installation in Section 4E in related manual”.

Front Wheel Speed Sensor Inspection

S5JB0B4606093

Refer to “Rear Wheel Speed Sensor Inspection in
Section 4E in related manual”.

Rear Wheel Speed Sensor On-Vehicle
Inspection

S5JB0B4606094

Refer to “Front Wheel Speed Sensor On-Vehicle
Inspection” since rear wheel speed sensor is the same
as front wheel speed sensor.

Rear Wheel Speed Sensor Removal and
Installation

S5JB0B4606095

Refer to “Rear Wheel Speed Sensor Removal and
Installation in Section 4E in related manual”.

Rear Wheel Speed Sensor Inspection

S5JB0B4606096

Refer to “Rear Wheel Speed Sensor Inspection” since
rear wheel speed sensor is the same as front wheel
speed sensor.

Front Wheel Encoder On-Vehicle Inspection

S5JB0B4606097

Refer to “Front Wheel Encoder On-Vehicle Inspection in
Section 4E in related manual”.

1

I6JB01460024-02

Electronic Stability Program: 4F-47

Front Wheel Encoder Removal and Installation

S5JB0B4606098

CAUTION

!

Front wheel encoder is included in front
wheel hub assembly. If front wheel encoder
needs to replaced, replace it as a front wheel
hub assembly.

For removal and installation of front wheel hub
assembly, referring to “Front Wheel Hub Assembly
Removal and Installation in Section 2B in related
manual”.

Rear Wheel Encoder On-Vehicle Inspection

S5JB0B4606099

Refer to “Front Wheel Encoder On-Vehicle Inspection in
Section 4E in related manual”.

Rear Wheel Encoder Removal and Installation

S5JB0B4606100

CAUTION

!

Rear wheel encoder is included in rear wheel
hub assembly. If rear wheel encoder needs to
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 in related
manual”.

Master Cylinder Pressure Sensor On-Vehicle
Inspection

S5JB0B4606101

1) Calibrate master cylinder pressure sensor referring

to “Sensor Calibration”.

2) Check that basic brake system other than ESP

®

referring to “Brake Diagnosis Note in Section 4A in
related manual”.

3) Connect SUZUKI scan tool to data link connector

(DLC) (1) with ignition switch OFF.

Special tool
(A): SUZUKI scan tool

4) Turn ignition switch to ON position and select menu

“DATA LIST” mode of SUZUKI scan tool. Refer to
scan tool operator's manual for further derails.

5) When brake pedal is released, check “Master Cyl

Press” under “DATA LIST” of SUZUKI scan tool.
If pressure is out of specification, replace ESP

®

hydraulic unit / control module assembly.

Master cylinder pressure specification
Brake pedal released: 0

± 0.8 MPa (0 ± 8 kg/cm

2

, 0

± 113 psi)

6) Hoist vehicle and remove right-side front wheel.
7) Connect special tool with rubber hose (1) to Front

brake caliper bleeder plug (2).

Special tool
(A): 09956–02311

8) When bleeder plug loosen and depress brake pedal

to make special tool gauge reading 10 MPa (100 kg/
cm

2

, 1422 psi), check “Master Cyl Press” under

“DATA LIST” of SUZUKI scan tool.
If pressure displayed on SUZUKI scan tool is out of
specification, replace ESP

® hydraulic unit / control

module assembly.

Master cylinder pressure specification
Brake pedal depressed 10 MPa (100 kg/cm

2

, 1422

psi): 10

± 1.2 MPa (100 ± 12 kg/cm

2

, 1422

± 170

psi)

9) After completing the check, turn ignition switch to

OFF position and disconnect SUZUKI scan tool from
DLC.

10) Tighten bleeder plug and bleed air from brake

system referring to “Air Bleeding of Brake System in
Section 4A in related manual”.

(A)

1

I5JB0A450008-01

2

(A)

1

I6JB01460025-01

4F-48 Electronic Stability Program:

Yaw Rate / G Sensor Assembly On-Vehicle
Inspection

S5JB0B4606102

Longitudinal G Inspection

1) Calibrate yaw rate / G sensor assembly referring to

“Sensor Calibration”.

2) Park and level the vehicle with parking brake and fix

wheels with chokes.

3) Check yaw rate / G sensor assembly installation

condition.

4) Connect SUZUKI scan tool to data link connector

(DLC) (1) with ignition switch OFF.

Special tool
(A): SUZUKI scan tool

5) Turn ignition switch to ON position and select menu

“DATA LIST” mode of SUZUKI scan tool. Refer to
scan tool operator's manual for further derails.

6) Check “G Sensor” under “DATA LIST” of SUZUKI

scan tool in the following vehicle conditions.
• Level condition
• Front-up condition
• Rear-up condition
If Longitudinal G condition is out of specification,
replace yaw rate / G sensor assembly.

Longitudinal G specification

Lateral G Inspection

1) Calibrate yaw rate / G sensor assembly referring to

“Sensor Calibration”.

2) Park and level the vehicle with parking brake and fix

wheels with chokes.

3) Check yaw rate / G sensor assembly installation

condition.

4) Connect SUZUKI scan tool to data link connector

(DLC) (1) with ignition switch OFF.

Special tool
(A): SUZUKI scan tool

Vehicle condition

Longitudinal G

Level condition

0

± 0.1 G

Front-up condition

0.1

± 0.1 G

Rear-up condition

–0.1

± 0.1 G

(A)

1

I5JB0A450008-01

[A]: Front-up condition

“a”: Approx 400 mm (15.75 in.)

[B]: Rear-up condition

1. Safety stand

[A]

[B]

“a”

“a”

1

1

I6JB01460026-02

(A)

1

I5JB0A450008-01