Downloaded from www.Manualslib.com manuals search engine BRAKES 5-11
Rear Drum Brake Shoe Adjustment
Rear brake has self-adjusting mechanism but it does require
adjustment for proper drum to shoe clearance when brake shoe
has been replaced or brake drum has been removed for some
other service.
Adjustment is automatically accomplished by depressing brake
pedal about 30 times with approximately 30 kg (66 Ibs) load after
all parts are installed.
Then check brake drum for dragging and brake system for proper
performance. After lowering vehicle from hoist, brake test should
be performed.
Parking Brake Inspection and Adjustment
INSPECTION
Hold center of parking brake lever grip and pull it up with 20 kg
(44 Ibs) force.
With parking brake lever pulled up as above, count ratchet
notches.
There should be 6 to 8 notches.
Also, check if both right and left rear wheels are locked firmly. To
count number of notches easily, listen to click sounds that ratchet
makes while pulling parking brake lever without pressing its but-
ton.
One click sound corresponds to one notch.NOTE:
Be sure to use particular brake fluid either as indicated
on reservoir cap of that vehicle or recommended in
owner’s manual which comes along with that vehicle.
Use of any other fluid is strictly prohibited.
Fluid level should be between MIN and MAX lines marked
on reservoir.
When brake warning lamp lights sometimes during driv-
ing, replenish fluid to MAX level.
When fluid decreases quickly, inspect brake system for
leakage.
Correct leaky points and then refill to specified level.
CAUTION:
Do not use shock absorber fluid or any other fluid which
contains mineral oil. Do not use a container which has
been used for mineral oil or a container which is wet from
water. Mineral oil will cause swelling and distortion of
rubber parts in hydraulic brake system and water mixed
into brake fluid will lower fluid boiling point. Keep all fluid
containers capped to prevent contamination.
Downloaded from www.Manualslib.com manuals search engine 5-54 BRAKES
Tightening Torque Specifications
Required Service Material
Fastening partTightening torque
Nm kg-m lb-ft
Brake caliper carrier bolt 85 8.5 61.5
Brake caliper pin bolt 22 2.2 16.0
Front brake flexible hose bolt 23 2.3 17.0
Rear brake back plate nut 23 2.3 17.0
Master cylinder nut 13 1.3 9.5
Booster nut 13 1.3 9.5
Brake pipe 5-way 4-way joint bolt 11 1.1 8.0
Brake pipe flare nut 16 1.6 12.0
LSPV bolt/P valve bolt 25 2.5 18.0
Brake bleeder plugFront caliper 11 1.1 8.0
Rear wheel cylinder, LSPV 8 0.8 6.0
Wheel nut 95 9.5 69.0
Hose bracket bolt 11 1.1 8.0
Booster clevis nut 25 2.5 18.0
Stop light switch lock nut 6.5 0.65 4.7
Parking brake lever bolt 23 2.3 17.0
Wheel cylinder mounting bolt 9 0.9 6.5
Piston stopper bolt 10 1.0 7.5
LSPV adjust bolt 25 2.5 18.0
Material Recommended SUZUKI products Use
Brake fluid Indicated on reservoir tank cap or
described in owner’s manual of vehi-
cleTo fill master cylinder reservoir.
To clean and apply to inner parts of master
cylinder caliper and wheel cylinder when they
are disassembled.
Water tight sealant SEALING COMPOUND 366E
99000-31090To apply to mating surfaces of brake back
plate and rear wheel cylinder.
Sealant SUZUKI BOND NO. 1215
99000-31110To apply to mating surfaces of brake back
plate and rear axle housing.
To apply to mating surfaces of brake back
plate and rear wheel bearing retainer.
Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-1
6F1
6F2
6G
6H
6K
7A
7A1
7B1
7C1
7D
7E
7F
8E
5E
9
10
10A
10B
10
10A
10B
SECTION 5E
ANTILOCK BRAKE SYSTEM (ABS)
CONTENTS
General Description ....................................... 5E-2
System Schematic ....................................... 5E-3
ABS Component Parts Location .................. 5E-4
ABS Control Module ..................................... 5E-5
Self-diagnosis function ............................. 5E-5
Fail-safe function ...................................... 5E-5
Diagnosis ........................................................ 5E-6
Precaution in Diagnosing Troubles .............. 5E-6
ABS Diagnostic Flow Table .......................... 5E-6
“ABS” Warning Lamp Check ........................ 5E-9
Diagnostic Trouble Code (DTC) Check ........ 5E-9
DTC Check (Using SUZUKI Scan Tool) ..... 5E-10
Diagnostic Trouble Code (DTC)
Clearance ................................................... 5E-10
Diagnostic Trouble Code (DTC) Table ....... 5E-11
System Circuit ............................................ 5E-12
Table – A “ABS” Warning Lamp Circuit
Check – Lamp Does Not Come “ON”
at Ignition Switch ON .................................. 5E-14
Table – B “ABS” Warning Lamp Circuit
Check – Lamp Comes “ON” Steady ........... 5E-15
Table – C “ABS” Warning Lamp Circuit
Check – Lamp Flashes Continuously
While Ignition Switch is ON ........................ 5E-16
Table – D Code (DTC) is Not Outputted
Even With Diag. Switch Terminal
Connected to Ground. ................................ 5E-17
DTC C1015 (DTC 15) – G Sensor
Circuit ......................................................... 5E-18
DTC C1016 (DTC 16) – Stop Lamp
Circuit ......................................................... 5E-20
DTC C1021 (DTC 21), DTC C1022
(DTC 22) – Right Front Wheel Speed
Sensor Circuit ............................................. 5E-21
DTC C1025 (DTC 25), DTC C1026
(DTC 26) – Left Front Wheel Speed
Sensor Circuit ............................................. 5E-21DTC C1031 (DTC 31), DTC C1032
(DTC 32) – Right Rear Wheel Speed
Sensor Circuit ............................................ 5E-21
DTC C1035 (DTC 35), DTC C1036
(DTC 36) – Left Rear Wheel Speed
Sensor Circuit ............................................ 5E-21
DTC C1041 (DTC 41), DTC C1042
(DTC 42) – Right Front Solenoid Circuit .... 5E-24
DTC C1045 (DTC 45), DTC C1046
(DTC 46) – Left Front Solenoid Circuit....... 5E-24
DTC C1055 (DTC 55), DTC C1056
(DTC 56) – Rear Solenoid Circuit .............. 5E-24
DTC C1057 (DTC 57) – Power Source
Circuit ......................................................... 5E-25
DTC C1061 (DTC 61) – ABS Pump
Motor Circuit............................................... 5E-26
DTC C1063 (DTC 63) – ABS Fail Safe
Circuit ......................................................... 5E-27
DTC C1071 (DTC 71) – ABS Control
Module ....................................................... 5E-28
On-Vehicle Service ...................................... 5E-29
Precaution .................................................. 5E-29
ABS Hydraulic Unit Operation Check ........ 5E-29
ABS Hydraulic Unit / Control Module
Assembly ................................................... 5E-30
Front Wheel Speed Sensor........................ 5E-32
Front Wheel Sensor Ring........................... 5E-35
Rear Wheel Speed Sensor ........................ 5E-36
Rear Wheel Sensor Ring ........................... 5E-38
G Sensor .................................................... 5E-39
Tightening Torque Specification ................ 5E-40
Special Tool .................................................. 5E-40 NOTE:
All brake fasteners are important attaching parts in that they could affect the performance of vital
parts and systems, and/or could result in major repair expense. They must be replaced with one of
same part number or with an equivalent part if replacement part of lesser quality or substitute design.
Torque values must be used as specified during reassembly to assure proper retention of all parts.
There is to be no welding as it may result in extensive damage and weakening of the metal.
Downloaded from www.Manualslib.com manuals search engine 5E-2 ANTILOCK BRAKE SYSTEM (ABS)
General Description
The ABS (Antilock Brake System) is a system to prevent each wheel to lock during hard braking or braking on a
slippery road by controlling the fluid pressure from master cylinder to each brake (either brake caliper or wheel
cylinder).
The ABS of this vehicle monitors all four wheels (four sensors) and controls all four wheels when the system is
active.
The component parts of this ABS includes following parts in addition to those of the conventional brake system.
Wheel speed sensor senses revolution speed of each wheel and sends outputs to ABS control module.
In this ABS, ABS hydraulic unit (actuator assembly), ABS control module, pump motor transistor and fail-
safe transistor are combined as one component.
ABS control module sends operation signal to ABS 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 hydraulic unit operates according to signal from ABS control module and controls fluid pressure applied
to wheel cylinder of each of 4 wheels.
Fail-safe transistor which supplies power to solenoid valve in ABS hydraulic unit.
Pump motor transistor supplies power to pump motor in ABS hydraulic unit.
“ABS” warning lamp lights to inform abnormality when system fails to operate properly.
G sensor which detects body deceleration speed.
1. Front disc brake 5. Brake master cylinder / booster
2. Proportioning valve [A] : For LH steering vehicle
3. Rear drum brake [B] : For RH steering vehicle
4. ABS hydraulic unit / control module assembly
Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-3
System Schematic
1. Wheel speed sensor (Right front) 7. Wheel speed sensor (Left rear) 13. ABS hydraulic unit
2. Stop lamp switch 8.“ABS” warning lamp 14. G sensor
3. ABS control module 9. ABS pump motor transistor 15. Data link connector
4. Wheel speed sensor (Right rear) 10. ABS solenoid valve transistor 16. ABS hydraulic unit / control module assembly
5. Monitor connector 11. Proportioning valve 17. 4WD switch (for 4WD model only)
6. ABS lamp driver module 12. Wheel speed sensor (Left front)
INPUTOUTPUT
ABS control
module Wheel speed sensor (RF)
Wheel speed sensor (RR)
Wheel speed sensor (LR)
Wheel speed sensor (LF)
Stop lamp switch
Diag. switch terminal
Battery voltage
4WD switch (for 4WD model only) G sensor
Pump motor
transistor
Fail-safe
transistor
Pump motor
LF hold solenoid
LF release solenoid
RF hold solenoid
RF release solenoid
Rear hold solenoid
Rear release solenoid
“ABS” warning lamp
Idle-up
ECM
Data link connector
ABS hydraulic unit/control
module assembly
Downloaded from www.Manualslib.com manuals search engine 5E-4 ANTILOCK BRAKE SYSTEM (ABS)
ABS Component Parts Location
1. Wheel speed sensor (Right front) 6. ABS hydraulic unit / control module assembly 11. Proportioning valve
2. Stop lamp switch 7. Monitor connector [A] : For LH steering vehicle
3.“ABS” warning lamp 8. Wheel speed sensor (Left front) [B] : For RH steering vehicle
4. Wheel speed sensor (Right rear) 9. Wheel speed sensor ring
5. Wheel speed sensor (Left rear) 10. G sensor
Downloaded from www.Manualslib.com manuals search engine ANTILOCK BRAKE SYSTEM (ABS) 5E-5
ABS Control Module
Self-diagnosis function
ABS control module diagnoses conditions of the system compo-
nent 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 as described below.
1) When ignition switch is turned ON, “ABS” warning lights for 2
seconds to check its bulb and circuit.
2) When no abnormality has been detected (the system is in
good condition), “ABS” warning lamp turns OFF after 2 sec-
onds.
3) When an abnormality in the system is detected, “ABS” warn-
ing lamp lights and the area where that abnormality lies is
stored in the memory in ABS control module.
4) When Diag. switch terminal of monitor connector is
grounded, the abnormal area is output as DTC.
For procedure to clear all DTC’s, refer to the item “Diagnostic
Trouble Code (DTC) Clearance” in this section.
Fail-safe function
When an abnormality occurs (an abnormal DTC is detected),
ABS control module turns OFF the fail-safe transistor which sup-
plies power to ABS hydraulic unit. Thus, with ABS not operating,
brakes function just like the brake system of the vehicle without
ABS.SYSTEM CONDITIONDIAGNOSIS
SWITCH
TERMINAL“ABS”
WARNING
LAMP
In good
condition
at presentNo trouble in the past Open OFF
Grounded DTC 12
Trouble occurred in
the pastOpen OFF
Grounded History DTC
Abnormal-
ity exists
at presentNo trouble in the past Open ON
Grounded Current DTC
Trouble occurred in
the pastOpen ON
GroundedCurrent and
history DTC
NOTE:
The current code and the history code are displayed
without any classification.
1. Ignition switch 4. ABS control module
2.“ABS” warning lamp 5. Sensed information
3. Monitor connector 6. Output
3-1. Diag. switch terminal 7. Lamp driver module
3-2. Ground terminal
Downloaded from www.Manualslib.com manuals search engine 5E-6 ANTILOCK BRAKE SYSTEM (ABS)
Diagnosis
To ensure that the trouble diagnosis is done accurately and smoothly, observe “Precautions in Diagnosing Trou-
bles” and follow “ABS Diagnostic Flow Table”.
Precaution in Diagnosing Troubles
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 Electronic Circuit Service” in Section 0A before inspection and observe
what is written there.
Be sure to use the trouble diagnosis procedure as described in the flow table. Failure to follow the flow table
may result in incorrect diagnosis. Some other diag. trouble code may be stored by mistake in the memory of
ABS control module during inspection.
ABS Diagnostic Flow Table
Refer to the following for the details of each step.
Step Action Yes No
1 Perform customer complaint analysis, problem symptom confir-
mation and diagnostic trouble code check record and clear-
ance.
Is there any trouble code?Go to Step 2. Go to Step 5.
2 Perform driving test.
Is trouble symptom identified?Go to Step 3. Go to Step 6.
3 Check diagnostic trouble code.
Is it malfunction code?Go to Step 4. Go to Step 5.
4 Inspect and repair referring to applicable diagnostic trouble
code table in this section. Then perform final confirmation test
after clearing diagnostic trouble code.
Is trouble recur?Go to Step 7. End.
5 Inspect and repair referring to “Diagnosis Table” in Section 5.
Then perform final confirmation test after clearing diagnostic
trouble code.
Is trouble recur?Go to Step 7. End.
6 Check for intermittent problems referring to “Intermittent and
Poor Connection” in Section 0A and related circuit of trouble
code recorded in Step 3. Then perform final confirmation test
after clearing diagnostic trouble code.
Is trouble recur?Go to Step 7. End.
7 Perform diagnostic trouble code check record and clearance.
Is there any trouble code?Go to Step 4. Go to Step 5.