Abs Hydraulic Unit / Control Module Assembly Description; Can Communication System Description - Suzuki GRAND VITARA Owner's Manual

4E-2 ABS:
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.
ABS Hydraulic Unit / Control Module Assembly
Description
ABS control module is a component of ABS hydraulic
unit / control module assembly and has the following
functions.
Self-Diagnosis Function
ABS control module diagnoses conditions of the system
component parts (whether or not there is any
abnormality) all the time and indicates the results
(warning of abnormality occurrence and DTC) through
the ABS warning lamp (1) as described.

CAN Communication System Description

Refer to "CAN Communication System Description: in Section 1A" for CAN communication system description.
ABS communicates control data with each control module as follows.
ABS Transmission Data
ABS hydraulic
unit / control module Transmit
assembly
ABS Reception Data
ABS hydraulic unit / control module assembly
S5JB0A4501002
Torque request signal
Wheel speed signal
ABS active
DATA
ABS indication on
EBD indication on
ABS diagnostic trouble codes
Receive DATA
1
• When ignition switch is turned ON, ABS warning lamp
lights for 2 seconds to check its circuit.
• When no abnormality has been detected (the system
is in good condition), ABS warning lamp turns OFF
after 2 seconds.
• When an abnormality in the system is detected, ABS
warning lamp lights and the area where that
abnormality lies is stored in the memory of EEPROM
in ABS control module.
ECM Combination Meter
Brake pedal switch active
I5JB0A450001-01
S5JB0A4501003
4WD control module
(if equiped)
I5JB0A450002-03
ECM
I5JB0A450003-03