Page 131
186 _Seat-belt warning lamp, SE, Fl, EU, GB, ME, FE, AU
Seat-belt warning lamp
SE, Fl, EU, GB, FE AU ME
+54 ‘Sh +54
1A in
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155
155 156 (FASTEN BELTS &) BR 0.75
BR 0.75 BR 0.75
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Saab 900
Page 132
69
153
BL 0.75
;
Seat-belt warning lamp, SE, Fl, EU, GB, ME, FE, Au: 4987
Operation
The supply is taken from fuse 5 via 29-pole red
connector 152B and seat-belt warning lamp 72 to
the driver's seat-belt switch 70. The switch connects
the warning lamp to earth, and the warning lamp will
thus light up. When the seat-belt buckle is inserted
into the lock, the switch will open the circuit and the
lamp will be extinguished.
Seat switch 69 is connected in series with seat-belt
switch 71 onthe co-driver’s side. The seat switch will
close when a load is applied to the seat. The warning
lamp will thus light up only if a person is seated in the
co-driver’s seat and the seat belt is not fastened.
Cars for the ME market
Cars for this market are equipped with warning relay
82 and an extra seat-belt warning lamp 214, which is
fitted on the centre console.
The driver's seat-belt switch 70 connects terminal
GF of the relay to earth, causing the warning lamps to
light up and the buzzer to sound. When the seat-belt
buckle is inserted into the lock, the switch will open,
the lamps will be extinguished and the buzzer will be
silenced.
Fault-tracing hints
The seat-belt warning lamp will be operative when
the ignition switch is in the drive position.
1. Check fuse 5 (and fuse 12,-if fitted) and check
that the supply to them is'live.
2. Check seat-belt warning lamp 72 (and 214, if
fitted).
3. Check seat-belt switches 70 and 71, and seat
switch.
4. Check the connectors, cable harnesses and
earth connections.
Saab 900
Page 133
188
\
Seat-belt warning lamp, SE, Fl, EU, GB, ME, FE, AU
i
Fi
li
i
i
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q
Locations of components
22A
58
60
69
70
rate
72
82
98
EET
152B
214
Fuse holder
in the electrical distribution box, in the en-
gine compartment, on the left-hand wheel
housing
12-pole connector
to the left of the steering column, behind the
knee shield below the facia
Single-pole connector
at the corresponding seat-belt lock
one between the front seats, under the cen-
tre console
three between the front seats, under the
centre console (ME)
Co-driver’s seat switch for seat-belt warn-
ing lamp
under the co-driver’s seat
Seat-belt switch — driver's side
between the driver’s seat and the co-
driver's seat
Seat-belt switch — co-driver’s side
between the driver’s seat and the co-
driver's seat
Seat-belt warning lamp
in the centre of the facia
Seat belt/ignition switch warning relay
under the back seat, on the left-hand side
10-pole connector
to the left of the steering column, behind the
knee shield below the facia
Earthing point
at the handbrake (1987)
between the ignition switch and the hand-
brake (1988)
29-pole red connector
in the engine compartment, in the electrical
distribution box on the left-hand wheel
housing. The connector is accessible from
the interior of the car.
Seat-belt warning lamp on the centre con-
sole (ME)
on the centre console, between the front
seats
Saab 900
Page 134
_ in the en-
land whee!
behind the
ck
+r the cen-
Jnder the
Jelt warn-
the co-
the co-
lay
1d side
lind the
: hand-
Ctrical
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2 from
2 Con-
front
Seat-belt warning lamp, SE, Fl, EU, GB, ME, FE, AU
189
Components
Saab 900
Page 135
190 = Seat-
belt and ignition key warning, US, CA, JP
Seat-belt and ignition key warning
72 (FASTEN BELTS 6)
a1 1ST
GW O75 BR/VT 0.75
San
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Se
ps
BR/VT O75
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82
1
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i 232 233
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170 60
SV 075
54 70
Saab 900
Page 136
Seat-belt and ignition key warning, US, CA, JP 191
Operation
The seat-belt and ignition switch warning system is
fitted to cars for the U.S.A., Canadian and Japanese
markets only.
The warning system reminds the driver that he has
not fastened his seat belt, or that he has left the key
in the ignition switch when leaving the car.
The system includes warning relay 82, which has a
buzzer. When the ignition switch is in the drive posi-
tion, the relay is supplied (+54) from fuse 12, via
29-pole white connector 152A.
Seat-belt warning
The warning relay is supplied (+54) from fuse 5, via
29-pole red connector 152B and seat-belt warning
lamp 72:
Driver's seat-belt switch 70 connects terminal GF of
the relay to earth. The warning lamp will then light up
and the buzzer will sound. When the seat-belt buckle
is inserted into the lock, the switch will open, the
lamp will be extinguished and the buzzer will be
silenced.
Ignition switch warming
As long as the key remains in the ignition switch, the
supply will be live from terminal S$ of the ignition
switch to the warning relay.
If the key is in the ignition switch and the driver's door
is opened, door switch 54 will close. Terminal 1 of
the relay will then be earthed and the buzzer will
sound.
Fault-tracing hints
The seat-belt and ignition switch warning system will
be operative when the ignition switch is in the drive
position.
1. Check fuses 5 and 12 and check that the supply
to them is live.
2. Check seat-beilt warning lamp 72 and the supply
to relay 82.
3. Check the door switches, connectors, cable har-
nesses and earth connections.
Saab 900
Page 137
192
Seat-belt and ignition key warning, US, CA, JP
Locations of components
20
22A
58
60
70
72
82
117
152A
152B
Ignition switch
on the centre console between the front
seats
Fuse holder
in the electrical distribution box, in the en-
gine compartment, on the left-hand wheel
housing
Door switches, interior lighting
in each door frame, between the hinges
12-pole connector
to the left of the steering column, behind the
knee shield below the facia
Single-pole connector
one between the front seats, under the cen-
tre console
one connected to the driver's seat-belt lock
Seat-belt switch - driver's side
between the driver's seat and the co-
driver's seat
Seat-belt warning lamp
in the centre of the facia
Seat-belt/ignition switch warning relay
under the back seat, on the left-hand side
10-pole connector
to the left of the steering column, behind the
knee shield below the facia
Earthing point
at the handbrake (1987)
between the ignition switch and the hand-
brake (1988)
29-pole white connector
29-pole red connector
in the electrical distribution box in the en-
gine compartment, on the left-hand wheel
housing. The connectors are accessible
from the interior of the car.
Saab 900
Page 138
front
1 6n-
wheel
idthe
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tlock
+ CO-
side
dthe
iand-
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heel
sible
Seat-belt and ignition key warning, US, CA, JP
193
Components
70
— PAS
Saab 900
Page 139
194 Combined instrument
1987 model
Combined instrument
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Saab 900
Page 140
Combined instrument 195
1988 model
1 5 GR 4.0
7 L20_16.0 2.
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12 GR/VT 0.75
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f f 1
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Saab 900