1999 SUZUKI GRAND VITARA connectors

YH4
GRAND
VITARA
0A-6 GENERAL INFORMATION
CAUTION:

Even when the accident was light enough not to cause air
bags to activate, be sure to inspect system parts and other
related parts according to instructions under ªRepair and
Inspection Required after an Accidentº in SECTION 10B.

When servicing parts other than air bag system, if shocks
may be applied to air bag system component parts, re-
move those parts beforehand.

When handling the air bag (inflator) modules (driver and
passenger), seat belt pretensioners (driver and passen-
ger) or SDM, be careful not to drop it or apply an impact to
it. If an excessive impact was applied (e.g., dropped from
a height of 91.4 cm (3 feet) or more), never attempt disas-
sembly or repair but replace it with a new one.

When grease, cleaning agent, oil, water, etc. has got onto
air bag (inflator) modules (driver and passenger) or seat
belt pretensioners (drive and passenger), wipe off im-
mediately with a dry cloth.

Air bag wire harness can be identified easily as it is cov-
ered with a yellow protection tube. Be very careful when
handling it.

When an open in air bag wire harness, damaged wire har-
ness, connector or terminal is found, replace wire har-
ness, connectors and terminals as an assembly.

Do not apply power to the air bag system unless all com-
ponents are connected or a diagnostic chart requests it,
as this will set a diagnostic trouble code.

Never use air bag system component parts from another
vehicle.

When using electric welding, be sure to temporarily dis-
able air bag system referring to ªDisabling Air Bag Sys-
temº described in ªService Precautionsº under ªOn-Ve-
hicle Serviceº in SECTION 10B.

Never expose air bag system component parts directly to
hot air (drying or baking the vehicle after painting) or
flames.

WARNING / CAUTION labels are attached on each part of
air bag system components. Be sure to follow the instruc-
tions.

After vehicle is completely repaired, perform ªAir Bag
Diagnostic System Checkº described in ªDiagnosisº in
SECTION 10B.

YH4
GRAND
VITARA
1. Coupler
2. Probe
1. Coupler
2. Probe
3. Where male
terminal fits
0A-10 GENERAL INFORMATION
PRECAUTIONS FOR ELECTRICAL CIRCUIT
SERVICE

When disconnecting and connecting coupler, make sure to
turn ignition switch OFF, or electronic parts may get dam-
aged.

Be careful not to touch the electrical terminals of parts which
use microcomputers (e.g. electronic control unit like as
ECM, PCM, P/S controller, etc.). The static electricity from
your body can damage these parts.

Never connect any tester (voltmeter, ohmmeter, or whatever)
to electronic control unit when its coupler is disconnected.
Attempt to do it may cause damage to it.

Never connect an ohmmeter to electronic control unit with
its coupler connected to it. Attempt to do it may cause dam-
age to electronic control unit and sensors.

Be sure to use a specified voltmeter / ohmmeter. Otherwise,
accurate measurements may not be obtained or personal in-
jury may result.

When taking measurements at electrical connectors using a
tester probe, be sure to insert the probe from the wire har-
ness side (backside) of the connector.

When connecting meter probe from terminal side of coupler
because it can't be connected from harness side, use extra
care not to bend male terminal of coupler of force its female
terminal open for connection.
In case of such coupler as shown connect probe as shown
to avoid opening female terminal.
Never connect probe where male terminal is supposed to fit.

YH4
GRAND
VITARA
GENERAL INFORMATION 0A-13
2V voltage drop
Continuity Check
1) Measure resistance between connector terminals at both ends
of the circuit being checked (between A-1 and C-1 in the figure).
If no continuity is indicated (infinity or over limit), that means that
the circuit is open between terminals A-1 and C-1.
2) Disconnect the connector included in the circuit (connector-B in
the figure) and measure resistance between terminals A-1 and
B-1.
If no continuity is indicated, that means that the circuit is open
between terminals A-1 and B-1. If continuity is indicated, there
is an open circuit between terminals B-1 and C-1 or an ab-
normality in connector-B.
Voltage Check
If voltage is supplied to the circuit being checked, voltage check can
be used as circuit check.
1) With all connectors connected and voltage applied to the circuit
being checked, measure voltage between each terminal and
body ground.
If measurements were taken as shown in the figure at the left
and results were as listed below, it means that the circuit is open
between terminals B-1 and A-1.
Voltage Between:
C-1 and body ground: Approx. 5V
B-1 and body ground: Approx. 5V
A-1 and body ground: 0V
Also, if measured values were as listed below, it means that
there is a resistance (abnormality) of such level that corre-
sponds to the voltage drop in the circuit between terminals A-1
and B-1.
Voltage Between:
C-1 and body ground: Approx. 5V
B-1 and body ground: Approx. 5V
A-1 and body ground: Approx. 3V

YH4
GRAND
VITARA
0A-14 GENERAL INFORMATION
To other
parts
Other parts
To other
partsSHORT CIRCUIT CHECK (Wire harness to ground)
1) Disconnect negative cable from battery.
2) Disconnect connectors at both ends of the circuit to be checked.
NOTE:
If the circuit to be checked is connected to other parts, dis-
connect all connectors of those parts.
Otherwise, diagnosis will be misled.
3) Measure resistance between terminal at one end of circuit (A-1
terminal in figure) and body ground. If continuity is indicated, it
means that there is a short to ground between terminals A-1 and
C-1 of the circuit.
4) Disconnect the connector included in circuit (connector B) and
measure resistance between A-1 and body ground.
If continuity is indicated, it means that the circuit is shorted to the
ground between terminals A-1 and B-1.

YH4
GRAND
VITARA
1. Combination switch
1. Steering column hole cover
: If equipped
2. Screw
1. Combination switch 2. Screw1. Steering column cover screw
2. Steering column lower cover
*
3. Steering column
upper cover
3C-4 STEERING WHEEL AND COLUMN
COMBINATION SWITCH
REMOVAL
1) Disconnect negative battery cable at battery terminal.
2) Remove steering wheel from steering column. Refer to
ªSTEERING WHEELº in this section.
3) Remove steering column hole cover.
4) Remove steering column cover screws (3 pieces).
5) Separate upper cover and lower cover, then remove them.
6) Disconnect all connectors for combination switch.
7) Remove combination switch from steering column.
INSPECTION
Check combination switch wire harness for any signs of scorching,
melting or other damage. If it is damaged, replace.
INSTALLATION
1) Install combination switch to steering column.
2) Connect all connectors that have been removed in removal.

YH4
GRAND
VITARA
1. Steering column assembly
2. Steering shaft joint
3. Marks
1. Steering column assembly
2. Steering shaft joint
3. Steering lower shaft assembly
4. Bolt (column side)
5. Bolt (lower shaft assembly side)1. Steering column hole cover
: If equipped
*
3C-6 STEERING WHEEL AND COLUMN
2) Remove steering wheel and combination switch, if necessary.
Refer to ªSTEERING WHEELº and ªCOMBINATION SWITCHº
in this section.
Perform the following procedure if not removing steering wheel
and / or combination switch.
i) Turn steering wheel so that vehicle's front tires are at straight-
ahead position.
ii) Turn ignition switch to ªLOCKº position and remove key.
3) Remove steering column hole cover.
4) Disconnect all connectors for the following parts.

Combination switch

Ignition switch

Immobilizer control system parts (if equipped)
5) Make alignment marks on shaft joint and shaft (column side) for
a guide during reinstallation.
6) After removing bolt on column side of shaft joint and loosening
bolt on its lower shaft assembly side, move shaft joint to lower
shaft assembly side (in arrow direction in the figure).

YH4
GRAND
VITARA
1. Steering shaft joint
2. Steering shaft (column side)
3. Marks
1. Steering shaft joint
2. Bolt (column side)
3. Bolt (lower shaft assembly side)
1. Steering column hole cover
: If equipped
*
STEERING WHEEL AND COLUMN 3C-9
4) Install steering shaft joint to steering shaft by matching it to
marks made before removal.
5) Install shaft joint bolt (column side) to steering shaft joint. Tighten
shaft joint bolt (column side) to specified torque first and then
shaft joint bolt (lower shaft assembly side) to specified torque.
Tightening Torque
(b): 25 N
.m (2.5 kg-m, 18.0 lb-ft)
6) If combination switch is removed, install combination switch.
Refer to ªCOMBINATION SWITCHº in this section.
7) Connect all connectors that have been removed in removal.
8) Install steering column hole cover.
9) If steering wheel is removed, install steering wheel. Refer to
ªSTEERING WHEELº in this section.
10) Connect negative battery cable.

YH4
GRAND
VITARA
1
1. Lugs
2. Grooves
3. Alignment marks
2. Steering column upper cover
3. Steering column lower cover 1. Steering column
cover screw
(a)
1. Steering column hole cover
AIR BAG STEERING WHEEL AND COLUMN 3C1-7
INSTALLATION
1) Check that vehicle's front tires are at straight-ahead position and
contact coil is centered. Refer to ªCENTERING CONTACT
COILº in this section.
CAUTION:
These two conditions are prerequisite for installation of
steering wheel. If steering wheel has been installed with-
out these conditions, contact coil will break when steer-
ing wheel is turned.
2) Install steering wheel to steering shaft with 2 lugs on contact coil
fitted in two grooves in the back of steering wheel and also align-
ing marks on steering wheel and steering shaft.
3) Tighten steering shaft nut to specified torque.
Tightening Torque
(a): 33 N
.m (3.3 kg-m, 23.5 lb-ft)
4) Install driver air bag (inflator) module to steering wheel. Refer to
ªDRIVER AIR BAG (INFLATOR) MODULEº in this section.
CONTACT COIL AND COMBINATION SWITCH
ASSEMBLY
CAUTION:
Do not turn contact coil (on combination switch) more than
allowable number of turns (about two and a half turns from
the center position clockwise or counterclockwise respec-
tively), or coil will break.
REMOVAL
1) Remove steering wheel from steering column. Refer to
ªSTEERING WHEELº in this section.
2) Remove steering column hole cover.
3) Remove steering column cover screws (3 pieces).
4) Separate upper cover and lower cover, then remove them.
5) Disconnect all connectors for contact coil and combination
switch assembly.