2002 SUZUKI GRAND VITARA Wiring

YH4
GRAND
VITARA
8D-8 WINDOWS, MIRRORS, SECURITY AND LOCKS
POWER DOOR MIRROR CONTROL SYSTEM
TroublePossible causeCorrection
All power mirrors do not
operate
ªCIGARº fuse blown (Hard Top Model)
ªCIGº fuse blown (Canvas Top Model)

Power door mirror switch faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Repair
One power mirror does
not operate
Power door mirror switch faulty

Actuator (power door mirror motor) faulty

Wiring or grounding faultyReplace switch
Replace actuator
Repair
DOOR MIRROR HEATER (IF EQUIPPED)
TroublePossible causeCorrection
The surface of mirror is
not defrosted although
door mirror heater
switch is ON
ªREAR DEFGº fuse blown (Hard Top Model)
ªDEFº fuse blown (Canvas Top Model)

Door mirror heater switch faulty

Door mirror heater faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Replace outside mirror
Repair
POWER SLIDING ROOF (IF EQUIPPED)
TroublePossible causeCorrection
Sliding roof does not
operate (sliding roof
motor runs OK)
Foreign object stuck in sliding roof rail

Misinstallation of sliding roof rail

Conflicts of sliding roof parts

Misinstallation of sliding roof drive cableRemove or clean stuck object
Install correctly
Fix conflicts
Install correctly
Sliding roof does not
operate (sliding roof
motor does not run)
ªSUN ROOFº fuse blown

Sliding roof switch faulty

Sliding roof motor ass'y faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Replace motor
Repair
FRONT SEAT HEATER (IF EQUIPPED)
TroublePossible causeCorrection
Both seat back and
cushion do not become
hot although seat heater
switch is LO / HI position
ªSEAT HTRº fuse blown (Hard Top Model)
ªS / Hº fuse blown (Canvas Top Model)

Seat heater switch faulty

Seat heater circuit in seat back and / or seat
cushion faulty

Wiring or grounding faultyReplace fuse to check for short
Replace switch
Replace heater front back and /
or heater front cushion
Repair
Only seat back does not
become hot although seat
heater switch is HI
position
Seat heater circuit in seat back faulty
(Hard Top Model)

Seat heater circuit in seat back and / or seat
cushion faulty (Canvas Top Model)

Seat heater switch faulty

Wiring faultyReplace heater front back
Replace heater front back
and / or heater front cushion
Replace switch
Repair
Only seat cushion does
not become hot although
seat heater switch is HI
position
Seat heater circuit in seat back and / or seat
cushion faulty (Hard Top Model)

Seat heater circuit in seat cushion
(Canvas Top Model)

Seat heater switch faulty

Wiring faultyReplace heater front back
and / or heater front cushion
Replace heater front cushion
Replace switch
Repair

YH4
GRAND
VITARA
WINDOWS, MIRRORS, SECURITY AND LOCKS 8D-23
POWER DOOR LOCK AND KEYLESS ENTRY SYSTEM (IF KEYLESS ENTRY IS
EQUIPPED)
SYSTEM INSPECTION
STEPACTIONYESNO
1Check power door lock operation referring to its
INSPECTION in this section.
Is this operation OK?Go to Step 2.Go to Step 3.
2Check keyless entry operation referring to its
INSPECTION in this section.
Is this operation OK?Go to Step 4.Go to Step 6.
3Check keyless entry operation referring to its
INSPECTION in this section.
Is this operation OK?Go to Step 5.Go to Step 7.
4Check hazard warning lights operation referring to
its INSPECTION in this section.
Is this operation OK?This system is OK.Go to Step 10.
5Check door lock key and power door lock switch
circuit referring to its INSPECTION in this section.
Is this circuit OK?Replace controller and
recheck.
And go to Step 4.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
And go to Step 4.
6Check ignition switch and door switch circuit
referring to its INSPECTION in this section.
Is this circuit OK?Replace controller and
recheck.
And go to Step 4.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
And go to Step 4.
7Check power door lock actuator circuit referring to
its INSPECTION in this section.
Is this circuit OK?Go to Step 8.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
If OK, go to Step 4.
If not OK, go to next
Step 8.
8Check power supply and grounding circuit
referring to its INSPECTION in this section.
Is this circuit OK?Go to Step 9.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
If OK, go to Step 4.
If not OK, go to next
Step 9.
91) Check door lock key and power door lock
switch circuit referring to its INSPECTION in
this section.
2) Check ignition switch and door switch circuit
referring to its INSPECTION in this section.
Are these circuits OK?Replace controller and
recheck.
And go to Step 4.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
And go to Step 4.

YH4
GRAND
VITARA
8D-24 WINDOWS, MIRRORS, SECURITY AND LOCKS
STEPACTIONYESNO
10Check that hazard warning lights flash with hazard
switch ON.
Is check result OK?Go to Step 11.Refer to ªTurn Signal
and Hazard Warning
Lightsº in DIAGNOSIS
and repair.
And go to Step 4.
11Check door knob switch and turn signal relay
circuit referring to its INSPECTION in this section.
Is this circuit OK?Replace controller and
recheck.Repair circuit referring
to WIRING DIAGRAM
MANUAL and recheck.
POWER DOOR LOCK OPERATION
INSPECTION
1) With the driver side door key turned LOCK, check all power
doors are locked.
2) With the driver side door key turned UNLOCK, check only the
driver side power door is unlocked.
Turn the driver side door key to UNLOCK again within 5 se-
conds, check all power doors are unlocked.
If check result of Step 1) and Step 2) is satisfactory, this operation
is OK.
KEYLESS ENTRY OPERATION
INSPECTION
1) With the IG switch OFF and all doors closed, push LOCK button
on transmitter. Check all power doors are locked.
2) Push UNLOCK button on transmitter. Check only driver side
power door is unlocked.
3) Push UNLOCK button on transmitter again within 5 seconds.
Check all power doors are unlocked.
But if any door is not opened within 30 seconds after power
door(s) unlocked, all power doors are locked again automatical-
ly.
If check result of Step 1) to Step 3) is satisfactory, this operation is
OK.
HAZARD WARNING LIGHTS OPERATION
INSPECTION
1) Check that hazard warning lights flash one time when power
doors are locked by pushing LOCK button on transmitter.
2) Check that hazard warning lights flash two times when power
door(s) is (are) unlocked by pushing UNLOCK button on trans-
mitter.
If check result of Step 1) and Step 2) is satisfactory, this operation
is OK.

YH4
GRAND
VITARA
8G
IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED) 8G-1
GENERAL DESCRIPTION8G- 2 . . . . . . . . . . . . . .
Ignition Key 8G- 3. . . . . . . . . . . . . . . . . . . . . . . . . .
Coil Antenna 8G- 3. . . . . . . . . . . . . . . . . . . . . . . . .
Immobilizer Control Module 8G- 4. . . . . . . . . . . .
ECM/PCM 8G- 4. . . . . . . . . . . . . . . . . . . . . . . . . . .
On-Board Diagnostic System
(Self-Diagnosis Function) 8G- 4. . . . . . . . . . . . .
DIAGNOSIS8G- 6 . . . . . . . . . . . . . . . . . . . . . . . . . . .
Precautions in Diagnosing Troubles 8G- 6. . . . .
Diagnostic Flow Table with monitor coupler> 8G- 9. . . . . . . . . . . . . . . .
Diagnostic Flow Table equipped with monitor coupler> 8G-10. . . . . . .
Diagnostic Trouble Code Check
(Immobilizer Control Module) 8G-11. . . . . . . .
Diagnostic Trouble Code Check
(ECM / PCM) 8G-11. . . . . . . . . . . . . . . . . . . . . .
Diagnostic Trouble Code Table 8G-13. . . . . . . . .
TABLE A DTC is not Output
from Diagnostic Output Terminal 8G-14. . . . . . .
TABLE B Immobilizer Indicator Lamp
Check (Immobilizer Indicator Lamp
does not Light at Ignition Switch ON) 8G-15. . .
TABLE C Immobilizer Indicator Lamp
Check (Immobilizer Indicator Lamp
Remains on after Engine Starts) 8G-16. . . . . . .
DTC11 Transponder Code Not Matched8G-17 . .
DTC31 Transponder Code Not
Registered 8G-17. . . . . . . . . . . . . . . . . . . . . . . . .
DTC12 Fault in Immobilizer
Control Module 8G-17. . . . . . . . . . . . . . . . . . . . . .
DTC13 No Transponder Code Transmitted
or Coil Antenna Opened/Shorted 8G-18. . . . . . DTC21 ECM/Immobilizer Control Module
Code Not Matched (Immobilizer Control
Module Side) 8G-20. . . . . . . . . . . . . . . . . . . . . . .
DTC81 (P1623) ECM/Immobilizer
Control Module Code Not Matched
(ECM/PCM Side) 8G-20. . . . . . . . . . . . . . . . . . . .
DTC84 (P1620) ECM/Immobilizer Control
Module Code Not Registered 8G-20. . . . . . . . .
DTC22 Ignition Switch Circuit Open/Short8G-21 . .
DTC23 No ECM/Immobilizer Control
Module Code Transmitted from ECM/
PCM or DLC Circuit Opened/Shorted8G-22 . . . .
DTC83 (P1621) No ECM/Immobilizer
Control Module Code Transmitted from
Immobilizer Control Module or DLC
Circuit Opened/Shorted 8G-22. . . . . . . . . . . . . .
DTC82 (P1622) Fault in ECM/PCM 8G-23. . . . .
Inspection of ECM/PCM, Immobilizer
Control Module and Its Circuit 8G-24. . . . . . . . .
Voltage Check 8G-24. . . . . . . . . . . . . . . . . . . . .
Resistance Check 8G-25. . . . . . . . . . . . . . . . . .
ON-VEHICLE SERVICE8G-26 . . . . . . . . . . . . . . . .
Precautions in Handling Immobilizer
Control System 8G-26. . . . . . . . . . . . . . . . . . . . .
Immobilizer Control Module 8G-27. . . . . . . . . . . .
Coil Antenna 8G-27. . . . . . . . . . . . . . . . . . . . . . . . .
HOW TO REGISTER IGNITION KEY8G-28 . . . . .
PROCEDURE AFTER IMMOBILIZER
CONTROL MODULE REPLACEMENT8G-29 . .
PROCEDURE AFTER ECM/PCM
REPLACEMENT8G-30 . . . . . . . . . . . . . . . . . . . . . .
SPECIAL TOOLS8G-30 . . . . . . . . . . . . . . . . . . . . . .
SECTION 8G
IMMOBILIZER CONTROL SYSTEM
(IF EQUIPPED)
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).
CONTENTS

YH4
GRAND
VITARA
8G-24 IMMOBILIZER CONTROL SYSTEM (IF EQUIPPED)
1
2
3
1
2
1. Immobilizer Control Module
2. Immobilizer Control Module Coupler
3. Body ground
INSPECTION OF ECM / PCM, IMMOBILIZER
CONTROL MODULE AND ITS CIRCUIT
ECM / PCM, Immobilizer Control Module and its circuit can be
checked at ECM / PCM wiring couplers and Immobilizer Control
Module wiring coupler by measuring voltage and resistance. De-
scribed here is only inspection of Immobilizer Control Module. For
inspection of ECM / PCM, refer to ªSECTION 6E1 or 6E2º.
CAUTION:
Immobilizer Control Module cannot be checked by itself. It
is strictly prohibited to connect voltmeter or ohmmeter to
Immobilizer Control Module with coupler disconnected
from it.
Voltage Check
1) Remove Immobilizer Control Module from body with ignition
switch OFF, referring to p. 8G-24.
2) Connect Immobilizer Control Module coupler to Immobilizer
Control Module.
3) Check voltage at each terminal of coupler connected.
NOTE:
As each terminal voltage is affected by the battery voltage,
confirm that it is 11 V or more when ignition switch is ON.
TERMINALCIRCUITNORMAL
VOLTAGECONDITION
A1Coil antenna 10 V
A2Coil antenna 20 VIgnition switch ON
A3Power source10 ± 14 V
A4Ignition signal10 ± 14 VIgnition switch ONA4Ignition signal0 ± 0.8 VIgnition switch OFF
A5Diagnosis output0 ± 14 VIgnition switch ONA5Diagnosis output0 VIgnition switch OFF
A6Blank±±
A7Ground±±
A8Data link connector
(Serial data terminal)4 ± 5 VIgnition switch ON
A9
A10Blank±±
NOTE:
When measuring voltage at A1 and A2 terminals with ignition switch turned ON, be sure to turn ignition
switch ON before connecting positive probe of voltmeter to A1 or A2 terminal. If it is not turned ON first,
DTC13 (Diagnostic Trouble Code 13) may be indicated.

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
9-20 BODY SERVICE
1. Sealing cover
2. Adhesive
INSTALLATION
Reverse removal procedure to install back door / rear gate noting
following points.

Secure wiring harness.

Secure back door / rear gate sealing cover.
NOTE:
Use adhesive to seal sealing cover to back door / rear gate.

Adjust back door / rear gate latch striker position by referring
ªBACK DOOR LOCK ASSEMBLY INSTALLATIONº so that back
door / rear gate is positioned correctly.

Adjust back door / rear gate cushion so that back door / rear gate
contacts body when closed.

YH4
GRAND
VITARA
1. (a)
1. (a)
1
11
Tightening Torque
(a): 23 N.m (2.3 kg-m, 17.0 lb-ft)
1. Bolt
BODY SERVICE 9-33
INSTRUMENTATION AND DRIVER INFORMATION
INSTRUMENT PANEL
WARNING:
See WARNING at the beginning of this section.
REMOVAL
1) Disconnect negative cable at battery.
2) Disable air bag system. Refer to ªDisabling Air Bag Systemº in
Section 10B.
3) Remove console box.
4) Remove glove box and column hole cover.
5) Disconnect wires and cables from heater unit and blower motor
assembly.
6) Remove steering column assembly. Refer to Section 3C1.
7) Disconnect speedometer connector and remove speedometer
assembly. If equipped with air bag, disconnect wire coupler at
SDM and air bag ground terminal for air bag.
8) Remove engine hood opener.
9) Disconnect couplers which need to be disconnected for removal
for instrument panel.
10) Remove instrument panel mounting screws.
11) Remove instrument panel mounting bolt.
12) Remove instrument panel.
CAUTION:
For vehicle with Air Bag, instrument panel could not be re-
moved with SDM coupler connected and ground terminal
installed.
Use care not to damage Air Bag harness.
INSTALLATION
1) Install instrument panel by reversing removal procedure, noting
the following items.

When installing each part, be careful not to catch any cable or
wiring harness.

When installing steering column assembly, refer to ªAIR BAG
STEERING COLUMN INSTALLATIONº in Section 3C1.
2) Adjust control cables. (Refer to Section 1A ªHEATER CON-
TROL CABLESº.)
3) Enable air bag system. Refer to ªEnabling Air Bag Systemº in
Section 10B.