Suzuki GRAND VITARA JB416, Service Manual

Page: 256 / 474

4E-33 ABS:
Repair Instructions
Hydraulic Unit Operation Check
S5JB0E4506001
1) Check that basic brake system other than ABS or
ESP
®
is in good condition.
2) Check that battery voltage is 11 V or higher.
3) Lift up vehicle.
4) Set transmission to neutral and release parking
brake.
5) Turn each wheel gradually by hand to check if brake
dragging occurs. If it does, correct.
6) Connect SUZUKI scan tool to data link connector
(DLC) (1) with ignition switch OFF.
Special tool
(A): SUZUKI scan tool
7) Turn ignition switch to ON position and select menu
press / depress in “HYDRAULIC CONTROL TEST”
under “miscellaneous test” (“MISC. TEST”) mode of
SUZUKI scan tool. Refer to SUZUKI scan tool
operator’s manual for further details.
NOTE
“Press” in the menu is functionable only
vehicle with ESP
®
.
8) Perform the following checks with help of another
person.
• Depressurization check
Step on brake pedal (1) and then select testing
wheel by SUZUKI scan tool and the wheel (2)
should be turned by another person’s hand. At this
time, check whether the wheel rotates freely due
to brake depressurization.
• Pressurization check
Step off brake pedal (1) and then select testing
wheel by SUZUKI scan tool and the wheel (2)
should be turned by another person’s hand. At this
time, check whether the wheel locks due to brake
pressurization.
NOTE
Pressurization / Depressurization by SUZUKI
scan tool is available for 0.5 second.
9) Check for all 4-wheels condition respectively. If a
faulty condition is found, replace hydraulic unit /
control module assembly.
10) After completing the check, turn ignition switch to
OFF position and disconnect SUZUKI scan tool from
DLC.
ABS (ESP
®
) Hydraulic Unit / Control Module
Assembly On-Vehicle Inspection
S5JB0E4506003
CAUTION
!
Never disassemble ABS (ESP
®
) hydraulic
unit / control module assembly, loosen blind
plug or remove motor. Performing any of
these prohibited services will affect original
performance of ABS (ESP
®
) hydraulic unit /
control module assembly.
Check hydraulic unit for fluid leakage.
If any, repair or replace.
(A)
1
I5JB0A450008-01
I4RH01450021-01