1999 SUZUKI GRAND VITARA Wire harness

YH4
GRAND
VITARA (A)
ªA11º
(A)
1. Pretensioner
harness
For DTC 43
For DTC 47
STEERING WHEEL
EXAMPLE: For driver side
AIR BAG SYSTEM 10B-49
CODE 43 ± DRIVER PRETENSIONER INITIATOR CIRCUIT SHORT TO GROUND
CODE 47 ± PASSENGER PRETENSIONER INITIATOR CIRCUIT SHORT TO GROUND
(Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, remove front
pillar lower trim of applicable side then
disconnect seat belt pretensioner
connector.
2) Check proper connection to applicable
seat belt pretensioner at terminals in ªGº
or ªHº connector.
3) If OK then connect Special Tool (B) to
seat belt pretensioner connector
disconnected at the step 1).
4) With ignition switch ON, is DTC 43 or 47
still current?Go to step 2.1) Ignition switch OFF.
2) Replace seat belt preten-
sioner (Refer to
SECTION 10A).
21) With ignition switch OFF, disconnect
Special Tool (B) and SDM.
2) Measure resistance between ªA13º or
ªA11º and ªA10º terminals.
3) Is resistance 1 k
or more?Substitute a known-
good SDM and recheck.DTC43:
Repair short ªPº or ªWº wire
circuit to ground.
DTC47:
Repair short from ªLgº or ªBrº
wire circuit to ground.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
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) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
1. From ignition switch
2. ªAIR BAGº fuse in ªAIR BAGº fuse box
3. SDM
4. Passenger seat belt pretensioner
5. Driver seat belt pretensioner : Shorting bar
: Air bag harness
10B-50 AIR BAG SYSTEM
CODE 44 ± DRIVER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
CODE 48 ± PASSENGER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
(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.
DTC WILL SET WHEN:
The voltage measured at driver or passenger seat belt pretensioner initiator circuit is above a specified value for
specified time.

YH4
GRAND
VITARA (A)
(A)1. Pretensioner
harness
For DTC 44
For DTC 48
STEERING WHEEL
EXAMPLE: For driver side
AIR BAG SYSTEM 10B-51
CODE 44 ± DRIVER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
CODE 48 ± PASSENGER PRETENSIONER INITIATOR CIRCUIT SHORT TO POWER CIRCUIT
(Page 2 of 2)
NOTE:
Before executing items in this table, be sure to perform ªAir Bag Diagnostic Check Flow Tableº.
STEP
ACTIONYESNO
11) With ignition switch OFF, remove front pillar
lower trim of applicable side then
disconnect seat belt pretensioner connector.
2) Check proper connection to applicable
seat belt pretensioner at terminals in ªGº or
ªHº connector.
3) If OK then connect Special Tool (B) to
seat belt pretensioner connector
disconnected at the step 1).
4) With ignition switch ON, is DTC 44 or 48
still current?Go to step 2.1) Ignition switch OFF.
2) Replace seat belt
pretensioner (Refer
to SECTION 10A).
21) With ignition switch OFF, disconnect Special
Tool (B) and SDM.
2) Measure voltage from ªA14º or ªA12º
terminal to body ground.
3) With ignition switch ON, is voltage 1 V or
less?Substitute a known-
good SDM and recheck.DTC44:
Repair short ªPº or ªWº
wire circuit to power
circuit.
DTC48:
Repair short from ªLgº or
ªBrº wire circuit to power
circuit.
Fig. for STEP 1 and 2 Fig. for STEP 2
Special Tool
(A): 09932-76010
(B): 09932-75010
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) Clear diagnostic trouble codes (refer to ªDiagnostic Trouble Code (DTC) Clearanceº), if any.
3) Repeat ªAir Bag Diagnostic System Check Flow Tableº, referring to p.10B-11 to confirm that the trouble
has been corrected.

YH4
GRAND
VITARA
1. From main fuse
2. Ignition switch
3. ªIG
.COIL METERº fuse in J/B7. Connection detection pin
8. SDM
8-1. ªAIR BAGº warning lamp driver circuit 4. ªAIR BAGº warning lamp in combination meter
5. ªAIR BAGº fuse in ªAIR BAGº fuse box
6. ªAIR BAGº monitor coupler : Air bag harness
AIR BAG SYSTEM 10B-53
CODE 61 ± ªAIR BAGº WARNING LAMP CIRCUIT FAILURE (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.
DTC WILL SET WHEN:
The voltage at the ªAIR BAGº warning lamp circuit terminal ªA5º does not match the commanded state of the warn-
ing lamp driver for specified time.

YH4
GRAND
VITARA
10B-62 AIR BAG SYSTEM
1. Air bag wire harness
2. Ground
3. SDM case ground
AIR BAG WIRE HARNESS AND CONNECTORS
Air bag wire harness can be identified easily as it is covered with a
yellow protection tube. Be very careful when handling it.

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.

When installing it, be careful so that the air bag wire harness is not
caught or does not interfere with other parts.

Make sure all air bag system grounding points are clean and
grounds are securely fastened for optimum metal-to-metal con-
tact. Poor grounding can cause intermittent problems that are dif-
ficult to diagnose.
DISPOSAL
Do not dispose of the live (undeployed) air bag (inflator) modules
and the live (inactivated) seat belt pretensioners. When disposal is
necessary, be sure to deploy the air bag according to deployment
procedure described under ªAir Bag (Inflator) Modules Disposalº
and to activate the pretensioner according to activation procedure
described under ªSeat Belt Pretensioners Disposalº.
WARNING:
Failure to follow proper air bag (inflator) module and seat
belt pretensioner disposal procedures can result in air bag
deployment and pretensioner activation which could cause
personal injury. Undeployed air bag (inflator) module and
inactivated seat belt pretensioner must not be disposed of
through normal refuse channels.
The undeployed air bag (inflator) module and inactivated
seat belt pretensioner contain substances that can cause
severe illness or personal injury if the sealed container is
damaged during disposal.

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.

YH4
GRAND
VITARA
10B-64 AIR BAG SYSTEM
ACCIDENT WITH OR WITHOUT DEPLOYMENT ± COM-
PONENT INSPECTIONS
Certain air bag and restraint system components must be in-
spected after any crash, whether the air bag deployed or not.
Those components are:

Steering column and shaft joints
± Check for length, damage and bend according to ªChecking
Steering Column for Accident Damageº in SECTION 3C1.

Steering column bracket and capsules
± Check for damage and bent.
If any faulty condition is found in above checks, replace faulty
part.

Steering wheel and driver air bag (inflator) module
± Check for damage or air bag (inflator) module fitness.
± Check trim cover (pad surface) for cracks.
± Check wire harness and connector for damage or tightness.
If any faulty condition is found in above checks, replace faulty
part.

Contact coil and combination switch assembly
± Check wire harness and connectors for damage or tightness.
± Check contact coil case for damage.
If any faulty condition is found in above checks, replace.

Instrument panel member and reinforcement
± Check for any distortion, bending, cracking or other damage.
If any faulty condition is found in above checks, replace.

YH4
GRAND
VITARA
1. SDM
2. SDM connector
3. SDM plate
4. SDM cover
1. Air bag wire harness
2. Ground
3. SDM case ground
AIR BAG SYSTEM 10B-65

Passenger air bag (inflator) module
± Check for dents, cracks, damage or fitness.
± Check trim cover for cracks or deformities.
± Check harness and connector for damage or tightness.
If any faulty condition is found in above checks, replace.

SDM and SDM plate
± Check for external damage such as deformation, scratch,
crack, peeled paint, etc.
± Check whether SDM can installed properly due to a cause in it-
self. (There is a gap between SDM and SDM plate, or it cannot
be fixed securely.)
± Check whether connector or lead wire of SDM has a scorching,
melting or damage.
± Check whether connector can be connected securely or locked.
± Check SDM connector and terminals for tightness.
± Check SDM sets a diagnostic trouble code and the diagnostic
table leads to a malfunctioning SDM.
If any faulty condition is found in above checks, replace.

Air bag wire harness and connections
± Check for damages, deformities or poor connections.
(Refer to ªIntermittent And Poor Connectionsº in this section.)
± Check wire harness clamps for tightness.
If any faulty condition is found, correct or replace.