Suzuki Grand Vitara JB419. Service manual — part 83
Table of Contents 4-iii
EBD Warning Lamp (Brake Warning Lamp)
Check. . . . . . . . . . . . . . . .. 4F-12
DTC Check . . . . . . . . . . . . . ... 4F-13
DTC Table. . . . . . . . . . . . . . . 4F-13
DTC Clearance . . . . . . . . . . . . . 4F-17
Fail-Safe Table. . . . . . . . . . . . .. 4F-17
Scan Tool Data . . . . . . . . . . . . . 4F-20
ESP
® Warning Lamp Does Not Come ON at
Ignition Switch ON . . . . . . . . . . .. 4F-21
® Warning Lamp Comes ON Steady. . . 4F-22
Serial Data Link Circuit Check . . . . . . .. 4F-23
DTC C1015 / C1017 / C1023: Longitudinal G
DTC C1016: Stop Lamp Switch Circuit Failure .. 4F-26
DTC C1018: Brake Fluid Level Switch Failure .. 4F-27
DTC C1020: Master Cylinder Pressure
Sensor Power Supply Failure . . . . . . . 4F-28
DTC C1021, C1022 / C1025, C1026 / C1031,
DTC C1024: Steering Angle Sensor Circuit
Failure . . . . . . . . . . . . . . . . 4F-29
Failure . . . . . . . . . . . . . . . . 4F-30
DTC C1028: Master Cylinder Pressure
Sensor Circuit Failure . . . . . . . . . . 4F-31
DTC C1034: Yaw Rate / G Sensor Assembly
Power Supply Failure. . . . . . . . . .. 4F-31
DTC C1037: Steering Angle Sensor Power
Supply Failure . . . . . . . . . . . . . 4F-33
DTC C1038: Steering Angle Sensor Detect
Rolling Counter Failure with ESP
Module . . . . . . . . . . . . . . . 4F-34
DTC C1039: Yaw Rate / G Sensor Assembly
Internal Failure . . . . . . . . . . . . 4F-35
DTC C1040: Stability Control System
Function Failure . . . . . . . . . . . .. 4F-35
DTC C1041 / C1042 / C1043 / C1044 / C1045
DTC C1050: Back Switch Failure (For M/T
Model) . . . . . . . . . . . . . . . . 4F-36
power supply circuit failure. . . . . . . .. 4F-37
DTC C1061: Pump Motor and/or Motor Driver
Circuit Failure. . . . . . . . . . . . .. 4F-37
DTC C1063: Solenoid Valve Power Supply
Driver Circuit Failure . . . . . . . . . ... 4F-37
Internal Defect. . . . . . . . . . . . . 4F-37
DTC C1073: Lost Communication With Yaw
Rate / G Sensor Assembly. . . . . . . .. 4F-38
DTC C1075 / 1076 / 1077 / 1078: Steering
DTC C1090: ECM Detect Rolling Counter
® Control Module . . . . . 4F-40
DTC C1091 / 1093: ECM / 4WD Control
Module Data in CAN Line Failure. . . . . 4F-40
DTC U1073: Control Module Communication
Bus Off . . . . . . . . . . . . . . . 4F-40
DTC U1100: Lost Communication with ECM
(Reception Error). . . . . . . . . . . . 4F-40
DTC U1126: Lost Communication with
Steering Angle Sensor (Reception Error). . 4F-41
DTC U1139: Lost Communication with 4WD
Control Module (Reception Error) (If
Equipped 4WD Control Module) . . . . . . 4F-43
DTC U1140: Lost Communication with BCM
(Reception Error). . . . . . . . . . . . 4F-44
Repair Instructions . . . . . . . . . . . 4F-45
Hydraulic Unit Operation Check. . . . . . 4F-45
Sensor Calibration. . . . . . . . . . . . 4F-45
ESP
® Hydraulic Unit / Control Module
Assembly On-Vehicle Inspection . . . . . 4F-46
® Hydraulic Unit / Control Module
Assembly Removal and Installation . . . . 4F-46
Front Wheel Speed Sensor On-Vehicle
Inspection. . . . . . . . . . . . . . 4F-46
Front Wheel Speed Sensor Removal and
Installation . . . . . . . . . . . . . ... 4F-46
Front Wheel Speed Sensor Inspection . . . . 4F-46
Rear Wheel Speed Sensor On-Vehicle
Inspection. . . . . . . . . . . . . . 4F-46
Rear Wheel Speed Sensor Removal and
Installation . . . . . . . . . . . . . ... 4F-46
Rear Wheel Speed Sensor Inspection . . . .. 4F-46
Front Wheel Encoder On-Vehicle Inspection . 4F-46
Front Wheel Encoder Removal and
Installation . . . . . . . . . . . . . ... 4F-47
Rear Wheel Encoder On-Vehicle Inspection. . 4F-47
Rear Wheel Encoder Removal and
Installation . . . . . . . . . . . . . ... 4F-47
Master Cylinder Pressure Sensor On-Vehicle
Inspection. . . . . . . . . . . . . . 4F-47
Yaw Rate / G Sensor Assembly On-Vehicle
Inspection. . . . . . . . . . . . . . 4F-48
Yaw Rate / G Sensor Assembly Removal and
Installation . . . . . . . . . . . . . ... 4F-50
Yaw Rate / G Sensor Inspection . . . . . ... 4F-51
Steering Angle Sensor On-Vehicle Inspection .. 4F-51
Steering Angle Sensor Removal and
Installation . . . . . . . . . . . . . ... 4F-52
Steering Angle Sensor Inspection. . . . . . 4F-52
ESP
® OFF Switch Removal and Installation . 4F-52
® OFF Switch Inspection . . . . . . ... 4F-52
Specifications. . . . . . . . . . . . . . 4F-53
Tightening Torque Specifications. . . . . .. 4F-53
4E-1 ABS:
Brakes
ABS
Precautions
Precautions in Diagnosing Troubles
S5JB0B4500001
To ensure that the trouble diagnosis is done accurately
and smoothly, observe the following and follow “ABS
Check”.
• Diagnostic information stored in ABS (ESP
®) control
module memory can be cleared as well as checked by
using SUZUKI scan tool. Before using scan tool, read
its Operator's (Instruction) Manual carefully to have
good understanding as to what functions are available
and how to use it.
• If the vehicles was operated in any of the following
ways, ABS warning lamp may light momentarily but
this does not indicate anything abnormal in ABS.
– The vehicle was driven with parking brake pulled.
– The vehicle was driven with brake dragging.
– The vehicle was stuck in mud, sand, etc.
– Wheel spin occurred while driving.
– Wheel(s) was rotated while the vehicle was jacked
up.
• Be sure to read “Precautions for Electrical Circuit
Service in Section 00 in related manual” before
inspection and observe what is written there.
• Be sure to use the trouble diagnosis procedure as
described in “ABS Check”. Failure to follow it may
result in incorrect diagnosis. (Some other diagnosis
trouble code may be stored by mistake in the memory
of ABS control module during inspection.)
• When disconnecting ABS control module connector
(1), pull down lock lever (2) of connector.
When connecting, set the connector on ABS hydraulic
unit / control module assembly and pull up the lock
lever (2) until it locks.
• When disconnecting ESP
® control module connector
(1), pull up lock lever (2) of connector.
When connecting, set the connector on ESP
®
hydraulic unit / control module assembly and pull
down the lock lever (2) until it locks.
• Communication of ECM, BCM, ABS (ESP
®) control
module (if equipped), 4WD control module (if
equipped), immobilizer control module (ICM) (if
equipped), combination meter and steering angle
sensor (if equipped) is established by CAN (Controller
Area Network).Therefore, be sure to read
“Precautions for Installing Mobile Communication
Equipment in Section 00 in related manual” before
inspection and handle CAN communication line.
Precautions in On-Vehicle Service
S5JB0B4500002
When connector is connected to ABS (ESP
®) hydraulic
unit / control module assembly, do not disconnect
connectors of sensors with ignition switch
ON.Otherwise, DTC will be set in ABS (ESP
®) control
module.
Precautions in Hydraulic Unit Operation Check
S5JB0B4500003
ABS (ESP
®) hydraulic unit / control module assembly
function is checked by correct wheel lock / release
condition when brake pressure is pressurized /
depressurized using SUZUKI scan tool. The hydraulic
unit operation check referring to “Hydraulic Unit
Operation Check” should be performed to confirm the
correct brake pipe connection in the following cases.
• ABS (ESP
®) hydraulic unit / control module assembly
was replaced.
• Brake pipe and/or hose were replaced.
[A]: Disconnect
C: Pull down to disconnect
[B]: Connect
D: Pull up to connect
2
1
C
D
[A]
[B]
I4RH01450001-01
[A]: Disconnect
C: Pull up to disconnect
[B]: Connect
D: Pull down to connect
2
1
[A]
[B]
C
D
I6JB01450001-02
ABS: 4E-2
General Description
ABS Description
S5JB0B4501001
ABS is controlled by ABS control module or by ESP
®
control module (if equipped).
ABS activation and control with ESP
® are done by
ESP
® hydraulic unit / control module
assembly.Regarding TCS and stability control excluding
ABS system with ESP
®, refer to Section 4F.
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 has also the following function.
While braking is applied, but before ABS control
becomes effective, braking force is distributed between
the front and rear so as to prevent the rear wheels from
being locked too early for better stability of the vehicle.
The main component parts of this ABS include the
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.
• ABS warning lamp which lights to inform abnormality
when system fails to operate properly.
• ABS (ESP
®) hydraulic unit / control module assembly
is incorporated ABS (ESP
®) control module, ABS
(ESP
®) hydraulic unit (actuator assembly), solenoid
valve power supply driver (transistor), solenoid valve
driver (transistor), pump motor driver (transistor).
– ABS (ESP
®) control module which sends operation
signal to ABS (ESP
®) 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 (ESP
®) hydraulic unit which operates
according to signal from ABS (ESP
®) control
module to control fluid pressure applied to wheel
cylinder of each 4 wheels.
– Solenoid valve power supply driver (transistor)
which supplies power to solenoid valve in ABS
(ESP
®) hydraulic unit.
– Solenoid valve driver (transistor) which controls
each solenoid valves in ABS (ESP
®) hydraulic unit.
– Pump motor driver (transistor) which supplies
power to pump motor in ABS (ESP
®) hydraulic
unit.
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
S5JB0B4501002
ABS (ESP
®) control module is a component of ABS
(ESP
®) hydraulic unit / control module assembly and
has the following functions.
Self-Diagnosis Function
ABS (ESP
®) 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.
• 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 (ESP
®) control module.
1
I5JB0A450001-01
4E-3 ABS:
CAN Communication System Description
S5JB0B4501003
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 Reception Data
Torque up request
Wheel speed signal (front)
Wheel speed signal (rear right)
Wheel speed signal (rear left)
ABS active
ABS indication on
EBD indication on
ABS diagnostic trouble codes
Combination Meter
Transmit
DATA
ABS (ESP®) control
module
ECM
4WD control module
(if equipped)
I5JB0B450001-01
Brake pedal switch active
DATA
ABS (ESP®) control module
Receive
ECM
I5JB0B450002-01
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