1999 SUZUKI GRAND VITARA ECU

YH4
GRAND
VITARA
Hard Top Model
Canvas Top Model
LOAD2 LOAD1
1. Heater wire
2. Thermostat
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-33
FRONT SEAT HEATER (IF EQUIPPED)
SEAT HEATER SWITCH (DRIVER AND PASSENGER SIDE)
INSPECTION
1) Confirm that ignition switch is OFF position.
2) Pull out seat heater switch from front center console box.
3) Disconnect seat heater switch coupler.
4) Check for continuity between terminals at each switch position
as shown below. If check result is not as specified, replace.
SEAT HEATER WIRE
INSPECTION
1) Confirm that seat heater switch is OFF position.
2) Disconnect two couplers of seat heater under the seat cushion.
(If seat under tray is equipped, pull out coupler between tray and
seat cushion.)
3) Check for continuity between terminals as shown below.
If not continuity, replace faulty seat heater.
Hard Top Model
Seat heater circuit in seat back
Between a and b
Between b and d
Between c and e
Seat heater circuit in seat cushion
Between f and g
Canvas Top Model
Seat heater circuit in seat back
Between A And B
Seat heater circuit in seat cushion
Between C and D
Between D and F
Between E and G

YH4
GRAND
VITARA
8G-28 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)
1
1. Ignition key with built-in transponder 1. Data link connector (DLC)
HOW TO REGISTER IGNITION KEY
Register the ignition key with a built-in transponder in Immobilizer
Control Module by using the following procedure.
1) Prepare Suzuki scan tool (TECH 1A kit and cartridge for immobi-
lizer control system).
2) With ignition switch OFF, connect Suzuki scan tool to data link
connector (DLC) located on underside of instrument panel at
driver's seat side.
Special Tool
(A): 09931-76011 (Tech 1A)
(B): Immobilizer cartridge
(C): 09931-76030 (16 / 14-pin DLC cable)
NOTE:
For operation procedure of Suzuki scan tool, refer to Suzuki
scan tool operator's manual.
3) Prepare ignition key with a built-in transponder. And then turn
ignition switch ON by using it.
4) Number of Transponder codes for ignition key with a built-in
transponder that can be registered in Immobilizer Control Mod-
ule is limited to 4. If needed, clear all Transponder codes for igni-
tion key with a built-in transponder that have been registered in
Immobilizer Control Module by executing the ªCLR. TRANS
COD (CLEAR TP CODE)º command in the SELECT MODE
menu by using Suzuki scan tool.
NOTE:
When ªCLR. TRANS COD (CLEAR TP CODE)º command is
executed with the malfunction indicator lamp (the lamp for
vehicles equipped with the monitor coupler) ON or the im-
mobilizer indicator lamp (the lamp for vehicle not equipped
with the monitor coupler) ON, it remains ON even after
execution of that command is over. It will start flashing
when the ignition switch is turned OFF once and then
turned ON after some seconds.
5) Using Suzuki scan tool, register Transponder code in Immobiliz-
er Control Module by executing ªENT. TRANS COD (ENT. TP
CODE)º command in SELECT MODE menu.
6) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.

YH4
GRAND
VITARA
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-29
7) If any other Transponder code for ignition key with a built-in
transponder needs to be registered, repeat above Steps 3), 5)
and 6).
NOTE:

Up to 4 Transponder codes for ignition key with a built-in
transponder can be registered.

It is not possible to register the same Transponder code
for ignition key with a built-in transponder as the one al-
ready registered in Immobilizer Control Module.
PROCEDURE AFTER IMMOBILIZER
CONTROL MODULE REPLACEMENT
When Immobilizer Control Module was replaced, including when
replaced because rechecking by using a known-good Immobilizer
Control Module was necessary during trouble diagnosis, register
Transponder code and ECM / Immobilizer Control Module code in
Immobilizer Control Module and ECM / Immobilizer Control Module
code in ECM/PCM by performing following procedure.
1) Perform Steps 1) and 2) described in ªHow to register ignition
keyº section.
2) Prepare ignition key with a built-in transponder. And then turn
ignition switch ON by using it.
3) Using Suzuki scan tool, clear all transponder codes registered
in Immobilizer Control Module by executing ªCLR. TRANS COD
(CLEAR TP CODE)º command in SELECT MODE menu.
NOTE:
When ªCLR. TRANS COD (CLEAR TP CODE)º command is
executed with the malfunction indicator lamp (the lamp for
vehicles equipped with the monitor coupler) ON or the im-
mobilizer indicator lamp (the lamp for vehicles not
equipped with the monitor coupler) ON, it remains ON even
after execution of that command is over. It will start flashing
when the ignition switch is turned OFF once and then
turned ON after some seconds.
4) Using Suzuki scan tool, register Transponder code in Immobiliz-
er Control Module by executing ªENT. TRANS COD (ENT. TP
CODE)º command in SELECT MODE menu.
5) Using Suzuki scan tool, register ECM / Immobilizer Control Mod-
ule code in both Immobilizer Control Module and ECM / PCM by
executing ªRECORD ECU (RECORD ECM / PCM / ICM)º com-
mand in SELECT MODE menu.
6) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.
7) If any other Transponder code for ignition key with a built-in trans-
ponder needs to be registered, repeat above Steps 2), 4) and 6).
NOTE:

Up to 4 Transponder codes for ignition key with a built-in
transponder can be registered.

It is not possible to register the same Transponder code
for ignition key with a built-in transponder as the one al-
ready registered in Immobilizer Control Module.

YH4
GRAND
VITARA
8G-30 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)
09931-76030
16 / 14 pin DLC cable
09931-76011
Suzuki scan tool (Tech 1A kit)1. Storage case
2. Operator's manual
3. Tech 1A
4. DLC cable
(14 / 26 pin, 09931-76040)
5. Test lead/probe
6. Power source cable
7. DLC cable adapter
8. Self-test adapter
Immobilizer cartridge of
version 1.1 or more
NOTE:
Use this cable only with im-
mobilizer cartridge of ver-
sion 1.1 or more.
Use of this cable with 96
immobilizer cartridge will
disable 96 immobilizer car-
tridge from operating prop-
erly.
Mass storage cartridge of
version1.5 or more
PROCEDURE AFTER ECM / PCM
REPLACEMENT
When ECM / PCM was replaced, including when replaced because
rechecking by using a known-good ECM / PCM was necessary dur-
ing trouble diagnosis, register ECM/Immobilizer Control Module
code in ECM / PCM by performing following procedure.
1) Perform Steps 1) and 2) described in ªHow to register ignition
keyº section. And then turn ignition switch ON.
2) Using TECH1, register ECM/Immobilizer Control Module code in
ECM / PCM by executing ªRECORD ECU (RECORD ECM / PCM/
ICM)º command in SELECT MODE menu.
NOTE:
For operation procedure of Suzuki scan tool, refer to TECH1
operator's manual.
3) [Vehicle equipped with monitor coupler]
Make sure that malfunction indicator lamp lights when ignition
switch is turned OFF once and then ON.
[Vehicle not equipped with monitor coupler]
Make sure that immobilizer indicator lamp lights when ignition
switch is turned OFF once and then ON.
SPECIAL TOOLS

YH4
GRAND
VITARA
9
BODY SERVICE 9-1
GLASS, WINDOWS AND MIRRORS9- 2 . . . . .
Front Door Glass 9- 2. . . . . . . . . . . . . . . . . . . . .
Front Door Window Regulator 9- 5. . . . . . . . . .
Windshield 9- 6. . . . . . . . . . . . . . . . . . . . . . . . . .
Rear Door Glass 9-12. . . . . . . . . . . . . . . . . . . . .
Rear Door Window Regulator 9-14. . . . . . . . . .
Quarter Window 9-15. . . . . . . . . . . . . . . . . . . . . .
Back Door Glass 9-16. . . . . . . . . . . . . . . . . . . . .
BODY STRUCTURE9-17 . . . . . . . . . . . . . . . . . . .
Front Door Assembly 9-17. . . . . . . . . . . . . . . . .
Rear Door Assembly 9-18. . . . . . . . . . . . . . . . . .
Back Door / Rear Gate Assembly 9-19. . . . . . . .
Hood 9-21. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Fender 9-22. . . . . . . . . . . . . . . . . . . . . . . . .
Front Bumper 9-23. . . . . . . . . . . . . . . . . . . . . . . .
Rear Bumper 9-24. . . . . . . . . . . . . . . . . . . . . . . .
Under Body Dimensions 9-25. . . . . . . . . . . . . . .
Body Dimensions 9-26. . . . . . . . . . . . . . . . . . . . .
INSTRUMENTATION AND DRIVER
INFORMATION9-33 . . . . . . . . . . . . . . . . . . . . . . .
Instrument Panel 9-33. . . . . . . . . . . . . . . . . . . . .
SEAT9-34 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Front Seat 9-34. . . . . . . . . . . . . . . . . . . . . . . . . . . Rear Seat 9-35. . . . . . . . . . . . . . . . . . . . . . . . . . .
PAINT AND COATINGS9-36 . . . . . . . . . . . . . . . .
Anti-Corrosion Treatment 9-36. . . . . . . . . . . . . .
Metal Replacement Parts Finishing 9-37. . . . .
Plastic Parts Finishing 9-58. . . . . . . . . . . . . . . . .
SECURITY AND LOCKS9-59 . . . . . . . . . . . . . . . .
Front Door Lock Assembly 9-59. . . . . . . . . . . . .
Rear Door Lock Assembly 9-61. . . . . . . . . . . . .
Back Door / Rear Gate Lock Assembly 9-62. . .
Key Coding 9-63. . . . . . . . . . . . . . . . . . . . . . . . . .
SUNROOF / CONVERTIBLE TOP9-64 . . . . . . . . .
Sliding Roof (if equipped) 9-64. . . . . . . . . . . . . .
Canvas Top And Topbow Frames 9-71. . . . . . .
EXTERIOR AND INTERIOR TRIM9-72 . . . . . . .
Floor Carpet 9-72. . . . . . . . . . . . . . . . . . . . . . . . .
Head lining 9-73. . . . . . . . . . . . . . . . . . . . . . . . . .
Roof Trim (2 Door Model) 9-75. . . . . . . . . . . . . .
Side Moldings (if equipped) 9-77. . . . . . . . . . . .
Splash Guard (if equipped) 9-78. . . . . . . . . . . .
Roof Rail (if equipped) 9-79. . . . . . . . . . . . . . . .
Roof Molding 9-79. . . . . . . . . . . . . . . . . . . . . . . .
Luggage Under Box 9-80. . . . . . . . . . . . . . . . . .
SECTION 9
BODY SERVICE
WARNING:
For vehicles equipped with Supplemental Restraint (Air Bag) System

Service on and around the air bag system components or wiring must be performed only by an autho-
rized SUZUKI dealer. Refer to ªAir Bag System Components and Wiring Location Viewº under ªGener-
al Descriptionº in air bag system section in order to confirm whether you are performing service on
or near the air bag system components or wiring. Please observe all WARNINGS and ªService Precau-
tionsº under ªOn-Vehicle Serviceº in air bag system section before performing service on or around
the air bag system components or wiring. Failure to follow WARNINGS could result in unintentional
activation of the system or could render the system inoperative. Either of these two conditions may
result in severe injury.

Technical service work must be started at least 90 seconds after the ignition switch is turned to the
ªLOCKº position and the negative cable is disconnected from the battery. Otherwise, the system may
be activated by reserve energy in the Sensing and Diagnostic Module (SDM).

When body servicing, if shock may be applied to air bag system component parts, remove those parts
beforehand. (Refer to Section 10B.)
NOTE:
Fasteners are important attaching parts in that they could affect the performance of vital components and
systems, and / or could result in major repair expense. They must be replaced with one of the same part
number of with an equivalent part if replacement becomes necessary.
Do not use a replacement part of lesser quality or substitute a design. Torque values must be used as spe-
cified during reassembly to assure proper retention of these parts.
CONTENTS

YH4
GRAND
VITARA
1. Screws
1. Bolts
1. Door sealing cover
2. Adhesive1, (a)
9-4 BODY SERVICE
INSTALLATION
Reverse removal procedure to install door glass noting following
points:

Tighten glass attaching screws to specified torque. Tighten front
screw first, then rear screw.
Tightening Torque
(a): 2.5 N
.m (0.25 kg-m, 1.8 lb-ft)

When window becomes hard to raise and lower, adjust screws to
correct tilted glass as shown in figure.

Adjust equalizer of window regulator so that measurement A and
B are equal.

Secure door sealing cover with adhesive.

YH4
GRAND
VITARA
BODY SERVICE 9-11
11) Check for water leakage by pouring water over windshield
through hose. If leakage is found, dry windshield and fill leaky
point with adhesive. If water still leaks even after that, remove
glass and start installation procedure all over again.
CAUTION:
Upon completion of installation, note the following.

Do not use high pressure water.

Do not blow compressed air directly at adhesive ap-
plied part when drying.

Do not use infrared lamp or like for drying.

Sudden closing of door before adhesive is completely
set may cause glass to become loose or to come off.
Therefore, if door is opened or closed before adhesive
is completely set, make sure to open all door glasses
and use proper care.

If molding is not securely in place, hold it down with
a tape until adhesive is completely set.

Each adhesive has its own setting time.
Be sure to refer to its maker's instruction, check set-
ting time of adhesive to be used and observe precau-
tions to be taken before adhesive is set.

Refrain from driving till adhesive is completely set so
as to ensure proper and sufficient adhesion.

YH4
GRAND
VITARA
1. Glass
2. Screw
1. Glass run
2. Center sash
3. Partition glass
1. Screw
2. Partition glass
3. Center sash
1. Door outer
weatherstrip
2. Screw
1. Door sealing
cover
2. Adhesive
1
BODY SERVICE 9-13
5) Remove outer weatherstrip.
CAUTION:
Using a tape-wrapped putty knife (or tape-wrapped
screwdriver), pry off weatherstrip. Use of an unwrapped
tool will cause damage to painting.
6) Remove glass fitting screws. Then down door glass.
7) Detach rear part of glass run from center sash.
8) Remove door center sash (by removing two screws with door
glass lowered all the way down).
9) When remove partition glass, slide to front to remove it.
10) Take out glass.
INSTALLATION
Reverse removal sequence to install door glass.
However, be careful of following points.

Securely seal door sealing cover with adhesive.

When weatherstrip is hardened, water leak may develop. In such
case, replace it with new one.