Diagnosis SUZUKI GRAND VITARA 1998 2.G Service Workshop Manual
[x] Cancel search | Manufacturer: SUZUKI, Model Year: 1998, Model line: GRAND VITARA, Model: SUZUKI GRAND VITARA 1998 2.GPages: 801, PDF Size: 12.15 MB
Page 719 of 801
YH4
GRAND
VITARA
1. Data link connector
2. DLC cable adapter
3. DLC cable
1sec. 1sec.About 10 seconds
Open
Short-1. ªAIR BAGº warning lamp
-2. ªAIR BAGº fuse box
-3. ªAIR BAGº monitor coupler
3-1. Diagnostic switch terminal
-4. Air bag harness (covered yellow tube)1
AIR BAG SYSTEM 10B-13
DIAGNOSTIC TROUBLE CODE (DTC) CLEARANCE
[Using SUZUKI scan tool]
1) Turn ignition switch OFF.
2) Connect Tech 1 to data link connector (DLC) in the same manner
as when making this connection for DTC check.
Special Tool
(A): 09931-76011 (Tech 1)
(B): Mass storage cartridge
(C): 09931-76030
3) Turn ignition switch ON.
4) Erase DTC according to instructions displayed on Tech 1.
Refer to Tech 1 operator's manual for further details.
5) After completing the check, turn ignition switch OFF and discon-
nect Tech 1 from data link connector (DLC).
6) Perform ªDiagnosis Trouble Code (DTC) Checkº and confirm
that normal DTC (NO CODES) is displayed and not malfunction
DTC.
NOTE:
If DTC 51 or DTC 71 is stored in SDM, it is not possible to
clear DTC.
[Not using SUZUKI scan tool]
1) Turn ignition switch ON and wait about 6 seconds or more.
2) Using service wire, repeat shorting and opening between diag-
nosis switch terminal and ground terminal on ªAIR BAGº monitor
coupler 5 times at about 1 second intervals.
3) Perform ªDiagnosis Trouble Code (DTC) Checkº and confirm
that normal DTC (DTC 12) is displayed and not malfunction
DTC.
NOTE:
If DTC 51 or DTC 71 is stored in SDM, it is not possible to
clear DTC.
Page 720 of 801
YH4
GRAND
VITARA
10B-14 AIR BAG SYSTEM
DIAGNOSTIC TROUBLE CODE TABLE (Page 1 of 2)
EXAMPLE: WHEN DRIVER AIR BAG INITIATOR CIRCUIT RESISTANCE HIGH (CODE NO.21) IS SET
Turn ON
Turn OFF
0.30.3 1.0 3.0 3.0 Malfunction indicator lamp
(ªAIR BAGº warning lamp)Code No. 21 Code No. 21 Code No. 21
Time (sec.)
DIAGNOSTIC TROUBLE CODEDIAGNOSISNO.MODEDIAGNOSIS
12Normal±±±±±
15Resistance high
16Passenger
air bag
Resistance low
18
air bag
circuitShort to ground
19Short to power circuit
21Resistance high
Diagnose trouble
according to ªDiagnos-
tic Flow Tableºcorre-
22
Driver air bag
Resistance low
tic Flow Table corre-
sponding to each code
No.
24
g
circuitShort to ground
25Short to power circuit
31Power
source
Too high
32
source
voltageToo low
Page 721 of 801
YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-15
DIAGNOSTIC TROUBLE CODE TABLE (Page 2 of 2)
DIAGNOSTIC TROUBLE CODEDIAGNOSISNO.MODEDIAGNOSIS
41Resistance high
42Driver
pretensionerResistance low
43circuit
(if equipped)Short to ground
44Short to power circuit
45Resistance highDiagnose trouble
di t ªDi
46Passenger
pretensionerResistance low
according to ªDiagnos-
tic Flow Tableº corre-
sponding to each code
47circuit
(if equipped)Short to ground
s onding to each code
No.
48Short to power circuit
51SDMFrontal crash detected
61ªAIR BAGº warning lamp circuit
71SDMInternal fault
NOTE:
When 2 or more codes are indicated, the lowest numbered code will appear first.
If a code not listed on the table is displayed, then the SDM is faulty.
Current DTC and history DTC can be identified by lighting and flashing of ªAIR BAGº warning lamp as
follows.
Current DTC is set.
(Abnormality exists at present.)History DTC is set only. (Faulty condi-
tion occurred once in the past but nor-
mal condition is restored at present.)
ªAIR BAGº warning lamp
after ignition switch ONRemains ON.Flashing 6 times and turns OFF.
ªAIR BAGº warning lamp
when grounding diagnosis
switch
Current DTC is displayed.History DTC is displayed.
However, if a multiple number of DTC's are set an even one of them is a current DTC, ªAIR BAGº warning
lamp remains on after ignition switch is turned ON. Therefore, it is not possible to identify any of them
as to whether it is a current one or a history one. (But use of scan tool (Tech 1) will make identification
possible.)
Page 726 of 801
YH4
GRAND
VITARA
1. From main fuse
2. Ignition switch
3. ªIG
.COIL METERº fuse in J/B
4. ªAIR BAGº warning lamp in combination meter7. Connection detection pin
8. SDM
8-1. ªAIR BAGº warning lamp driver circuit -5. ªAIR BAGº fuse in ªAIR BAGº fuse box
-6. ªAIR BAGº monitor coupler
6-1. Diagnosis switch terminal : Air bag harness
6±1 6
10B-20 AIR BAG SYSTEM
TABLE C ± ªAIR BAGº WARNING LAMP FLASHES (Page 1 of 2)
CAUTION:
When measurements are requested in this chart use specified digital multimeter with correct terminal
adapter from special tool (Connector test adapter kit).
When a check for proper connection is requested refer to ªIntermittent and Poor Connectionsº in this
section.
When an open in air bag wire harness, damaged wire harness, connector or terminal is found, replace
wire harness, connectors and terminals as an assembly.
STEPACTIONYESNO
11) Check ªAIR BAGº monitor coupler.
2) Is it connected diagnosis switch terminal and
ground terminal in ªAIR BAGº monitor coupler
by service wire?Remove service wire.Go to step 2.
21) With ignition switch OFF, disconnect SDM.
2) Measure resistance between ªA8º terminal of
SDM connector and body ground.
3) Is resistance 1 k or more?Substitute a known-good
SDM and recheck.Repair short from ªVº
wire circuit to ground.
Page 760 of 801
YH4
GRAND
VITARA
10B-54 AIR BAG SYSTEM
CODE 61 ± ªAIR BAGº WARNING LAMP CIRCUIT FAILURE (Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic System Check Flow Tableº.
STEP
ACTIONYESNO
11) This DTC is set when there is a trouble in
ªAIR BAGº warning lamp circuit. Failure to
properly perform ªAir Bag Diagnostic System
Check Flow Tableº may also result in
misdiagnosis. Therefore, check ªAIR BAGº
warning lamp circuit again according to ªAir
Bag Diagnostic System Check Flow Tableº.
2) Is ªAIR BAGº warning lamp circuit in good
condition?Go to step 2.Repair ªAIR BAGº
warning lamp circuit.
21) Clear diagnostic trouble codes.
2) Is DTC 61 set ?Substitute a known-
good SDM and recheck.Recheck air bag system,
referring to ªAir Bag
Diagnostic System
Check Flow Tableº.
NOTE:
Upon completion of inspection and repair work, perform following items.
1) Reconnect all air bag system components, ensure all components are properly mounted.
2) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p. 10B-11 to confirm that the trouble
has been corrected.
CODE 71 ± INTERNAL SDM FAULT
DTC WILL SET WHEN:
An internal SDM fault is detected by SDM.
NOTE:
CODE 71 can never be cleared once it has been set.
1) Ignition switch OFF.
2) Replace SDM.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11.
Page 761 of 801
YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-55
ON-VEHICLE SERVICE
SERVICE PRECAUTIONS
SERVICE AND DIAGNOSIS
WARNING/CAUTION labels are attached on each part of air bag system components (SDM, air bag (inflator) mod-
ules and seat belt pretensioners). Be sure to follow the instructions.
WARNING:
If the air bag system and another vehicle system both need repair, Suzuki recommends that the air
bag system be repaired first, to help avoid unintended air bag system activation.
Do not modify the steering wheel, dashboard or any other air bag system components. Modifications
can adversely affect air bag system performance and lead to injury.
Failure to follow procedures could result in possible air bag system activation, personal injury or un-
needed air bag system repairs.
Many of service procedures require disconnection of ªAIR BAGº fuse and air bag (inflator) modules (driver and
passenger) from initiator circuit to avoid an accidental deployment.
Do not apply power to the air bag system unless all components are connected or a diagnostic chart requests
it, as this will set a diagnostic trouble code.
The ªAir Bag Diagnostic System Checkº must be the starting point of any air bag diagnostics. The ªAir Bag Diag-
nostic System Checkº will verify proper ªAIR BAGº warning lamp operation and will lead you to the correct chart
to diagnose any air bag malfunctions. Bypassing these procedures may result in extended diagnostic time, incor-
rect diagnosis, and incorrect parts replacements.
Never use air bag component parts from another vehicle.
If the vehicle will be exposed to temperatures over 93C (200F) (for example, during a paint baking process),
remove the air bag system components beforehand to avoid component damage or unintended system activa-
tion.
When servicing, if shocks may be applied (eg., dropped from a height of 90 cm (3 ft) or more) to air bag system
component parts, remove those parts beforehand.
When using electric welding, be sure to disconnect air bag (inflator) module and seat belt pretensioner connec-
tors (driver and passenger) respectively.
When applying paint around the air bag system related parts, use care so that the harness or connector will not
be exposed to the paint mist.
Never expose air bag system component parts directly to hot air (drying or baking the vehicle after painting) or
flames.
WARNING:
When performing service on or around air bag system components or air bag wiring, follow the proce-
dures listed in the following pages to temporarily disable the air bag system. Refer to appropriate ser-
vice manual procedures. Failure to follow procedures could result in possible air bag system activa-
tion, personal injury or unneeded air bag system repairs.
Page 763 of 801
YH4
GRAND
VITARA
1. Yellow connector of passenger air bag (inflator) module
2. Steering support member
3. Air bag harness
AIR BAG SYSTEM 10B-57
3) Connect Yellow connector of passenger air bag (inflator) mod-
ule, and be sure to lock connector with lock lever.
ii) Connect connector.
ii) Lock connector with lock lever.
4) Install glove box.
5) Install ªAIR BAGº fuse to ªAIR BAGº fuse box.
6) Turn ignition switch to ON and verify that ªAIR BAGº warning
lamp flashes 6 times and then turns off.
If it does not operate as described, perform ªAir Bag Diagnostic
System Checkº in this section.
HANDLING AND STORAGE
SDM
WARNING:
Never power up air bag system when SDM is not rigidly at-
tached to the vehicle. Otherwise, personal injury may result.
CAUTION:
After detecting one time of such collision as to meet deploy-
ment conditions, the SDM must not be used.
Refer to ªDiagnosisº when checking the SDM.
Never attempt disassembly of SDM.
When storing SDM, select a place where neither high tempera-
ture nor high humidity is anticipated and oil, water and dust are
kept off.
If SDM was dropped from a height of 90 cm (3 ft) or more or if it
is found to be damaged or deformed, replace it with a new one.
If installation part of SDM was damaged, repair that part com-
pletely before reinstallation.
All SDM and mounting bracket fasteners must be carefully
torqued and the arrow must be pointed toward the front of the ve-
hicle to ensure proper operation of the air bag system.
Page 769 of 801
YH4
GRAND
VITARA
AIR BAG SYSTEM 10B-63
REPAIRS AND INSPECTIONS REQUIRED AFTER AN ACCIDENT
CAUTION:
All air bag system components, including the electrical harness (component mounting points), must
be inspected after an accident. If any components are damaged or bent, they must be replaced even
if air bag system activation did not occur.
Never use air bag system parts from another vehicle.
Do not attempt to service the parts below. Service of these parts is by replacement only.
± Driver/Passenger air bag (inflator) module
± Driver/Passenger seat belt pretensioner
± SDM
± Contact coil and combination switch assembly
± Air bag wire harness
Proper operation of the sensors and air bag system requires that any repairs to the vehicle structure
return it to its original production configuration.
CAUTION:
After detecting one time of such collision as to meet deployment conditions, the SDM must not be used.
Refer to ªDiagnosisº when checking the SDM.
ACCIDENT WITH DEPLOYMENT ± COMPONENT
REPLACEMENT
Certain air bag system components must be replaced. Those com-
ponents are:
Driver and passenger air bag (inflator) modules
± Replace with new one.
Driver and passenger seat belt pretensioners
± Replace with new one as an assembly.
SDM after detecting such collision as to meet deployment condi-
tions
± Replace with new one.
Page 772 of 801
YH4
GRAND
VITARA
2-2
2-1. Webbing
2-2. Retractor assembly
2-1. Seat belt pretensioner
2-2. Seat belt pretensioner harness
10B-66 AIR BAG SYSTEM
Seat belt pretensioner
± Check for dents, cracks, damage or fitness.
± Check harness and connector for damage or tightness.
If any faulty condition is found in above checks, replace.
Seat belts and mounting points
± Refer to SECTION 10A.
ªAIR BAGº warning lamp (air bag system)
± After vehicle is completely repaired, perform ªAir Bag Diagnos-
tic System Checkº under ªDiagnosisº in this section.
DRIVER AIR BAG (INFLATOR) MODULE
Refer to SECTION 3C1 for removal, inspection and installation.
CONTACT COIL AND COMBINATION SWITCH
ASSEMBLY
Refer to SECTION 3C1 for removal, inspection and installation.
SEAT BELT PRETENSIONER
Refer to SECTION 10A for removal, inspection and installation.
ªAIR BAGº WARNING LAMP
Refer to SECTION 8C for removal and installation of combination
meter.