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Suzuki Grand Vitara JB627. Manual - part 191

4F-3 Electronic Stability Program:

ESP

® Hydraulic Unit / Control Module

Assembly Description

S6JB0B4601002

ESP

® control module is a component of ESP® hydraulic

unit / control module assembly and has the following
functions.

Self-Diagnosis Function
ESP

® control module monitors each input and output

signals. When ESP

® control module detects any

malfunction, some of ABS warning light (1), EBD
warning light (brake warning light) (2), ESP

® warning

light (3), SLIP indicator light (4), ESP

® OFF light (5) are

turned ON and indicate the abnormality to driver.
• When ignition switch is turned ON, ABS warning, EBD

warning, ESP

® warning, SLIP indicator and ESP®

OFF light for 2 seconds to check its circuit.

• When no abnormality is detected (the system is in

good condition), ABS warning, EBD warning, ESP

warning, SLIP indicator and ESP

® OFF turn OFF

after 2 seconds.

• When an abnormality in the system is detected, some

of ABS warning light, EBD warning light (brake
warning light), ESP

® warning light, SLIP indicator

light and/or ESP

® OFF light are turned ON and the

area where that abnormality lies is stored in the
memory in ESP

® control module.

Fail-Safe Mode
When ESP

® control module detects abnormality, the

system goes into fail-safe mode. And some of functions
of ABS, TCS, stability control system are shut down. For
details of fail safe mode, refer to “Fail-Safe Table”.

Warning Light, Indicator Light Description

S6JB0B4601003

There are five types of warning light and indicator light in instrument cluster, which are controlled by ESP

® control

module. They give warning / indication to driver by changing the modes light ON / blinking / light OFF.

I6JB01460002-02

1. ESP

® warning light

3. ABS warning light

5. ESP

® OFF light

2. EBD warning light (brake warning light)

4. SLIP indicator light

I6JB01460003-02

Electronic Stability Program: 4F-4

The followings are the condition and operation of warning lights and indicator lights.

CAN Communication System Description

S6JB0B4601004

Refer to “CAN Communication System Description in Section 1A” for CAN communication system description. ESP

control module communicates control data with each control module as follows.

ESP

® Control Module Transmission Data

Warning light / Indicator light

Condition and operation

ABS warning light

If ABS has abnormality, the light turns “ON”.

EBD warning light (brake warning
light)

• If EBD system has abnormality, the light turns “ON”.
• If bake fluid level in reservoir is lower than minimum level, the light turns “ON”.
• Parking brake switch is ON, the light turns “ON”.

ESP

® warning light

If ESP

® systems (other than ABS) has abnormality, the light turns “ON”.

SLIP indicator light

• If stability control system and traction control system is active, the light blinks at

5 Hz.

• If Steering angle sensor calibration is incompleted, the light blinks at 1 Hz.

ESP

® OFF light

• If ESP

® OFF switch is turned “ON”, the ESP® OFF light light up. When it is

“ON”, TCS and stability control system functions are controlled not to work.
However, when the speed is over 30 km/h (18.5 mph), ESP

® OFF light is

turned “OFF” and TCS and stability control system function is back to work
automatically.

• When transfer shift position (if equipped) is in 4L-lock, the ESP

® OFF light light

up to indicate engine torque down and stability control system in TCS are
controlled not to activate to increase the driving force.
However, the brake-traction control works through ESP

® OFF light light up.

• ESP

® OFF light light up to indicate that brake control of traction control

function is controlled not to act if brake pad temperature is over 350

°C (662 °F)

and any of wheel is in wheel spin condition.

Torque up request

Torque down request

Wheel speed signal (front)

Wheel speed signal (rear right)

Wheel speed signal (rear left)

ESP® system (other than ABS) active

ABS active

ESP® OFF indication ON

ESP® indication ON

ABS indication ON

EBD indication ON

Steering angle neutral position

Combination

Meter

Transmit

DATA

ESP® control

module

ECM

4WD control

module

(if equiped)

Steering angle

sensor

I6JB01460004-02

4F-5 Electronic Stability Program:

ESP

® Control Module Reception Data

CAN Communication System For Electronic Stability Program Description

S6JB0B4601005

There is CAN communication system only for ESP

® control module (1) and yaw rate / G sensor assembly (2).

This CAN communication system is independent from other control modules.

ESP

® communicates control data with yaw rate / G sensor assembly as follows.

ESP

® Transmission Data to Yaw Rate / G Sensor Assembly

• Longitudinal G neutral position
• Lateral G neutral position

ESP

® Reception Data from Yaw Rate / G Sensor Assembly

• Vehicle yaw rate signal
• Vehicle longitudinal G signal
• Vehicle lateral G signal
• Yaw rate / G sensor assembly related malfunction

Engine torque signal

Accelerator pedal position

Engine speed

Cruise control signal (if equipped)

Brake pedal switch signal

Transmission gear selector position

Brake fluid level switch signal

Parking brake switch signal

4WD shift position (if equipped)

Steering angle signal

Receive

DATA

ESP® control

module

ECM

4WD control

module

(if equiped)

Steering

angle sensor

TCM

(A/T model)

BCM

I6JB0B460001-02

I6JB01460006-01

Electronic Stability Program: 4F-6

Schematic and Routing Diagram

Electronic Stability Program Schematic

S6JB0B4602001

INPUT

OUTPUT

ESP® control module

Wheel speed sensor (LF)

Wheel speed sensor (LR)

Wheel speed sensor (RF)

Battery Voltage

Master cylinder pressure sensor

Ignition Voltage

Pump motor driver
(transistor)

Solenoid valve power
supply driver (transistor)

Solenoid valve driver
(transistor)

CAN driver

CAN driver (for yaw rate /
G sensor assembly)

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

ESP® hydraulic unit/control module assembly

Wheel speed sensor (RR)

Brake lignt switch
Engine torque
Accelerator pedal position
Engine speed
Cruise control (if equipped)

Master cylinder cut solenoid

valve No. 1

Master cylinder cut solenoid

valve No. 2

Low pressure solenoid valve

No. 1

Low pressure solenoid valve

No. 2

ECM

Brake fluid level switch
Parking brake switch

BCM

Steering angle sensor

ESP® OFF switch

Yaw rate
Longitudinal G
Lateral G

Yaw rate / G sensor assembly

Gear selector position

TCM (A/T model)

Gear selector position

4WD control module

ABS warning lamp
EBD warning lamp
ESP® warning lamp
SLIP indicator lamp
ESP® OFF lamp

Combination meter

Torque request

ECM

Steering angle neutral position

Steering angle sensor

Longitudial G neutral position
Lateral G neutral position

Yaw rate / G sensor assembly

I6JB0B460002-04

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