saab documents

Workshop manual

Saab 900 16V Factory Service Manual

pages 281–290 of 572

Page 281

Wiring Diagrams, Fuses and Relays

371-33

Burglar Alarm-ex. Convertible
1987-1990
13~34

'3~34
J

43 Bt 0.75

I

t

+
I
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85 (us, CAl

11/12
17

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+30 (via 152A-29)
M89-M90
+30 (from 151- lermlnal30)

NO.7

M8l-M89
+X(vla20)
M90
+X (via 152A-6
and 22A-20)

680 BR 0.75

122

679 BR 0.75

60

674 GL 0.75

40

695 Bl 0.75

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Page 282

371-34

Wiring Diagrams, Fuses and Relays

Burglar Alarm-ex. Convertible
1991-1993

13<?r
-.J

43 BU 0.75

I

45 GN 0.75

85

11/12

+30

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+x

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40
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30

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681 BK 0.75

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676 WH 0.75

30

289

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60
20
70

+54
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}288

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Ol5H 202
A

1875241

Page 283

Wiring Diagrams, Fuses and Relays

Burglar Alarm-Convertible
1987-1988
11/12,85

13,234

~~

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lolA

275

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GN/R~."

GN/RD 10

4l
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371-35

Page 284

371-36

Wiring Diagrams, Fuses and Relays

Burglar Alarm-Convertible
1989
+30

+30

+54

I

+x

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288

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Page 285

Wiring Diagrams, Fuses and Relays

371-37

Burglar Alarm-Convertible
1990
28,90

27,89

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<;>

I
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~------------------------------~
4

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28

Page 286

371-38

Wiring Diagrams, Fuses and Relays

Burglar Alarm-Convertible
1991
RO 16.0

413

401A

678
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176
y(

2.5

6778
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12-POLE

=-"-"==-='--­ __EE=Ql-----'=-"-W'-'.H

276

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771 VT 0.5

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pc~NNECTOR
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56

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Page 287

Wiring Diagrams, Fuses and Relays

371-39

Burglar Alarm-Convertible
1992 and later
"'R"'D-!''''6.'''D_ _--l +

[~75
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a

7
GY 4.0

GY 6.0

1

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A

Page 288

371-40

Wiring Diagrams, Fuses and Relays

Central Locking
Operation
All of the door locks and the luggage compartment lid are
locked or unlocked when the key is turned in the driver's door.
The central locking control unit (175) actuates all of the lock
motors via pin 7 and pin 8.
See 830 Doors, Windows, and Lids for more information
on removing the lock motors and other door components.

184
185
186
188
401

Connector Locations
1985-1990
57 3-pin connector (2) in driver door and in engine compartment near left
door hinge
59 2-pin connector (5) right front door, engine compartment near right
door hinge, left rear door, right rear door, luggage compartment near
central lock motor
123 4-pin connector (2) one in each B pillar
152A 29-pin bulkhead connector at main fuse/relay panel

Fault Tracing
1. Check the fuses. Check the voltage supply to control
unit (175) pin 4. This pin should always be live.
2. Check that pin 7 of the control unit (175) is live when
the door key is in the unlock position. Check that pin 8
of the control unit (175) is live when the key is in the unlock position.

CAUTION
The lock motors should only be tested through pin 7 and pin 8
of the control unit (175). Do not 'bench test' the lock motors
using any other power supply sources as this may overload
and damage the motors.

NOTE
When testing pin 7 and pin 8, the supply will only be live for
approximately 1 second.

central door lock motor in passenger door
central door lock motor in right rear door
central door lock motor in left rear door
central door lock motor in tailgate lock
auxiliary fuse/relay panel under rear seat

1991 and later
H2-4 2-pin connector at engine compartment near right door hinge
H2-8 2-pin connector at engine compartment near right door hinge
H2-20 2-pin connector in luggage compartment, left wheel housing
H2-30 2-pin connector in left rear door
H2-31 2-pin connector in right rear door
H2-32 2-pin connector in luggage compartment near the central lock motor
H3-7 3-pin connector in engine compartment near left door hinge
H3-15 3-pin connector in the driver door
H4-4 4-pin connector at right B pillar behind trim
H4-5 4-pin connector at left B pillar behind trim
H10-1 10-pin connector behind instrument panel, left of steering column
H12-1 12-pin connector behind instrument panel, left of steering column
H29-2 29-pin bulkhead connector behind main fuse/relay panel (1991-1991 1/2)
H33-2 33-pin bulkhead connector behind main fuse/relay panel
(1991 1/2 and later)

Ground Locations
1985-1990
65 ground point at the handbrake
117 ground point at the handbrake

Component Locations
22A
75
175
183

1991 and later

main fuse/relay panel at left wheel housing
distribution block at right wheel housing
central locking control unit behind instrument panel right side
key switch for the driver's central door locking in driver door

75

~

G1 ground point at radiator cross member
G8 ground point behind instrument panel
G25 ground point at gearbox

~
183
175

184

~

G88

~

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188

8c:JG
c:::::J,=

IOc:::J'E::::::].
.c:::JJt:::::]s

401

c:::::Jc:=J

401A

m

Page 289

Wiring Diagrams, Fuses and Relays

371-41

Central Locking
1985-1990
+30

I
1 5K

GR 2.5
5'-4 GR 1.5

152A
500 GN 1.0
504A
8R VT 1.0
0

11
10

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500 GN 1.0
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117
65

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RHD

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184

3

183
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184

Page 290

371-42

Wiring Diagrams, Fuses and Relays

Central Locking
1991 and later (ex. 1992 and later convertible)
+

75

RD 16.0

8 GY 6.0

~~5.0

,.J,UC;OU,.J,'G2 5

~~

176 y[ 1.5

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'--'------v---­

T

H12 - 1

500 GN 1.0

175
3

1

2

;"

510 BK 1.0

H3-15

H3-7

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501 BK 1.0

17

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0

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.L

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