Page 371
Control lever at 2
Current is supplied to terminal 5 on the windshield wiper
motor only (low speed) via terminals 53a and 53 on the
switch.
Control lever at 3
Current is supplied to terminal 3 (high speed) on the
windshield wiper motor via terminals 53a and 53b on
the switch. At the same time, current flows across Son
the switch to terminal 86 on the headlight wiper relay,
whereupon the relay closes and supplies current through
terminals 86 and 88a on the relay to terminal 53 on the
wiper motor.
WIRE CONNECTIONS AND COLORS, HEADLIGHT
MOTOR
WIPER
1. Red to "53a"
2. Yellow to "31b"
3. Brown to "53"
Control lever at 4
When the control lever is pulled back towards the steering
wheel, it trips a spring-loaded contact whereupon current
is supplied from terminal 53a to the washer motor and
headlight wiper motor through terminals 54c and S.
NOTE
For normal use of the wipers, a fuse for a maximum
current of 3 amp. is to be fitted in order to avoid
damage to the wiper motor if the wipers freeze onto
the glass.
While testing the assembly (dry headlight glass), an
8 amp. fuse may be temporarily fitted.
WIPER MOTOR
Removing and installing
WIPER MECHANISM
1. Remove the grille. See Group 8.
2. Remove the crank arm from the wiper motor and the
nut from the shaft.
3. Remove the battery.
4. Disconnect the wires from the wiper motor.
5. Remove the screw which holds the wiper motor to the
fan cover. The motor can then be removed. Take care
of the spacers on the shaft.
Removing and installing
1. Remove the grille. See Group 8.
2. Prize apart the ball joint between the push rod and the
crank arm of the motor.
Install in the reverse order.
NOTE! The screw in the wiper motor crank arm must be
tightened to a torque of 10 Nm (7.2 ft.lb., 1.0 kpm) and
locked with Loctite.
LOOSEN THE CRANK ARM FROM THE PUSH ROD
SA.ftEI
363-5
Page 372
3. Unhook the springs which hold the wiper shaft bushings to the front sheet.
4. Remove the four screws, holding the protecting cover
and remove the cover together with the wiper mechanism.
Adjusting the cord tension
Install in the reverse order.
Before the springs and bushings are fitted, the recesses in
the front sheet must be greased on both sides.
1. Remove the protective cover and wiper mechanism.
2. Adjust cord tension by slackening the set screw in the
cord attachment bushings and then moving the bushings to stretch the cords.
ADJUSTING CORD TENSION
Checking the pressure of the wiper blades
PROTECTING COVER WITH WIPER MECHANISM
Check the pressure of the wiper blades on the headlight
glasses and make sure that the bushing does not stick in
the recesses in the front sheet. The pressure of the wiper
blades, measured in the parked position, must not exceed
3 N (11 oz, 300 p).
CRC 5.56 or similar is a suitable lubricant for the bushings.
Adjusting the parking position of the wipers
Adjust the parking position of the wipers by altering the
length of the push rod.
Changing wiper blades
1. Release the catch on the wiper shaft and pull off the
wiper blade.
2. Fit a new wiper blade on the shaft and secure the catch.
ADJUSTING THE PARKING POSITION OF THE HEADLIGHT
WIPERS
363-6
SAMI
-
Page 373
ELECTRICAL CONTROLS
AND SWITCHES
GENERAL
The ignition switch is located on the gear lever console
and is combined with the starter switch and gear lever
security lock.
To protect the ignition switch contacts against excessively high currents, an extra relay is fitted. The windshield
wipers and washer, the radiator fan relay, the ventilator
fan and the back-up lights are supplied with current via
this relay, which is located by the fuse box.
In cars with fuel injection, the injection system of the engine incorporates a safety relay and a relay for the fuel
pump.
BRAKE LIGHT SWITCH
Up to and incl. model 1977, the brake warning light
switch is mounted on the master cylinder, and is operated mechanically by means of a plunger which is actuated in the event of a pressure difference occurring
between the brake circuits. The switch can be removed
without having any effect on the hydraulic system.
RETAINER
FOR FUSE BOX AND RELAYS
1. Headlight wiper relay
2. Start inhibitor relay, cars with automatic transmission
3. Safety relay, cars with Cl-system
4. Fuel pump relay, cars with Cl-system
5. Ignition switch relay ·
6. Radiator fan relay
7. Town light relay. (On cars without town lights, space for extra
relay. As from model 1977: Cornering light relay.)
8. Interval relay, windshield wipers Saab 99 GLE.
9. Light relay
10. Relay electrically heated rear window
11. Service outlet, ignition system
The brake light switch is mechanical and is actuated by
the rod between the pedal pivot and the brake servo unit.
When the brake pedal is depressed, current flows to the
brake lights.
BRAKE WARNING
1977
LIGHT SWITCH, UP TO AND INCL. MODEL
As from model 1978, the brake warning light switch is
incorporated in the filler cup of the brake fluid container.
The switch is actuated by a float which is governed by
the fluid level in the container. In the event of the fluid
level falling below a preset limit, the s~itch closes and
the warning light comes on.
To check the operation of the warning function, depress
the centre of the filling cup to move the float mechanically.
SA'-\EI
.I.
364-1
Page 374
As from 1980 model cars with automatic transmission
have the "reversing light/start interlock relay" contact
mounted in the gear selector lever housing.
BRAKE WARNING LIGHT SWITCH, AS FROM MODEL 1978
In cars with manual transmission the back-up light switch
is located to the left of the gear lever under the console
and is tripped by the gear lever when reverse gear is engaged, whereupon the back-up lights light up.
BACK-UP LIGHT SWITCH, MANUAL
The switch that operates the handbrake warning light is
located on the right of the handbrake lever under the
console and is actuated by the movement of the handbrake lever.
TRANSMISSION
HANDBRAKE
WARNING
LIGHT SWITCH
In cars with automatic transmission up to and including
1979 model the contact is mounted on the front of the
transmission casing and is combined with the starter
interlock. With reference to the setting of the contact,
see und "Automatic transmission" in Group 4.
The switch that operates the trunk light is on Saab 99
(99 L), 99 L (99 GL), 99 GLE and 99 EMS located at
the left hinge of the trunk lid.
BACK-UP LIGHT SWITCH, AUTOMATIC
TRUNK LIGHT SWITCH, SAAB 99 (99 L), 99 L (99 GL) 99
GLE AND 99 EMS
364-2
TRANSMISSION
S.'8.l.
Page 375
If the ignition switch (4) and the light switch (5) are on,
current will pass through relay coil ( 1). The coil contact
is pulled down and connects either high or low beam via
contact (3). Contact (3) can change position as it is mechanically influenced _by the contact at relay coil (2).
This coil is connected with the headlight dimmer and
flasher switch (6) (i.e. the same lever as the direction
indicator switch). If either the ignition switch or the
light switch - or both - are switched off, the high beam
signal can be used. The contact at coil (1) is then in the
upper position and the high beam is connected through
the contact at coil (2), which is grounded through the
light switch.
The switch that operates the trunk I ight is on Saab 99
Combi Coupe located at the rear door striker.
TOWN LIGHT RELAY, AS FROM CHASSIS NOS.
99752023575 AND 99756007714 AND UP TO AND
INCL. MODEL 1977
TRUNK
Function (see wiring diagram):
If the ignition switch (4) is on, current will flow through
th~ town light relay coil (10). The contact (11, 12) is
pulled down and the low-beam lights are connected via
the resistor ( 13) which drops the voltage to around 10 V.
LIGHT SWITCH SAAB 99 COMBI COUPE
IGNITION AND STARTER SWITCH
..
The ignition and starter switch is mounted in the gear lever housing. The switch has five terminals and the wires
should be connected as shown below.
S 5178
WIRING DIAGRAM,
RELAY
1, 2.
3.
4.
5.
6.
7.
8.
9.
10.
11, 12.
13.
14.
15.
STARTER SWITCH
1. Brown/white to "54"
2. Yellow to "50"
3. Green/white to "15"
4. Gray to "30"
5. Red to "X"
LIGHTING
RELAY AND TOWN LIGHT
Relay coils
Contact
Ignition switch
Light switch
Low-beam/high-beam switch
High-beam warning light
Connecting piece
Diode
Relay coil
Switching contact
Resistance
Low beam
High beam
LIGHTING RELAY
The lighting relay contains devices for flashing the high
beam and switching between high beam and low beam.
Function (see wiring diagram):
SAAB
364-3
Page 376
OIL PRESSURE SWITCH
The oil pressure switch is located on the oil pump spacing
piece. On earlier car models, the switch is located on the
cylinder block below the water pump.
RESISTANCE, TOWN LIGHT TO AND INCL. MODEL 1977
The town lights can be disconnected by removing the
town light relay. The relay is located at the fusebox and
ii; marked "EXTRA" on the panel.
As from model 1978, the town Iights are incorporated
in the parking lights.
OIL PRESSURE SWITCH
Removing
1. Pull off the connecting wire.
2. Unscrew the oil pressure switch (width across flats
7/16").
Installing
NOTE
Coat the threads with sealant compound before installing.
5tr
•
1. Screw in the oil pressure switch and tighten to 1215 Nm (9-11 ft.lb., 1.2-1.5 kpm) torque.
2. Connect the wire .
S/5!3
CONNECTION PIECE TOWN LIGHT AS FROM MODEL 1978
TEMPERATURE
GAUGE TRANSMITTER
Remove
The 1978 and 1979 models have the day-light 1n the combination light unit.
As from 1980 model the day-light has 9een re-introduced
in the form of a reduced dipped beam. The day-light resis. tance ~as, however, been replaced by a re-designed wiring harness which provides the required resistance.
364-4
1. Drain the radiator and engine coolant system.
2. Pull off the connecting wire.
3. Unscrew the transmitter (width across flats 1/2").
Page 377
WARNING SYSTEM FOR UNFASTENED SEATBELT
A warning lamp on the instrument panel lights up if the
driver and/or the front seat passenger has not fastened
his seat belt.
The following components are included in the warning
system:
Warning lamp - in the middle of the panel
Belt contact - in the flap lock
Seat contact - in the passenger seat
Model 1975:
Handbrake contact (manual transmission)
Gear selector lever contact (automatic transmission)
TEMPERATURE
MODEL 1976
GAUGE TRANSMITTER,
UP TO AND INCL.
TEMPERATURE
GAUGE TRANSMITTER,
AS FROM MODEL
The lamp lights up in the following cases:
If the ignition is on and, on model 1975, the handbrake
(on cars with manual transmission) is released or the gear
selector lever (on cars with automatic transmission) is
moved from the "P" position and:
a. the driver has not fastened his seat belt
b. the front seat passenger actuates the seat contact but
has not fastened his seat belt.
1977
Installing
1. Screw in the transmitter.
2. Connect the wire.
3. Fill the system with coolant.
4. Warm up the engine and check the temperature transmitter deflection.
5. Check the coolant level and top up if necessary.
SAMI
364-5
Page 379
WIRING AND FUSES
WIRING
The wiring conducts current from the battery or alternator to the various items of electrical equipment. To protect the wiring and reduce the risk of short circuits, the
wires have been grouped wherever possible in cable networks, i.e. a number of independently insulated wires
surrounded by an outer plastic sheath.
The wiring networks are divided into two groups, one at
the dash panel and in the engine compartment, and the
other leading to the rear end of the car. The connections
of the wiring are illustrated in the wiring diagram; it
should not be too diffucult to remove or install wires if
this diagram is used as a guide. The wires in a cable network are color coded.
The wires terminate in solderless AMP connectors. Check
that wiring is properly connected to avoid undue potential drop. The insulation of the cable network should be
tested if fuses blow frequently and damage to the insulation is suspected. Note that a fuse will not blow if a short
occurs between it and the source of current. When installing new wiring, always take special care to make sure that
the size of wire chosen can handle the current toad for
which it is intended, and that the wiring is well protected
from wear and damage at points where it passes through
steel partitions or is held by clamps.
FUSE BOX WITH FUSES, UP TO AND INCL. MODEL 1976
FUSES
FUSE BOX WITH FUSES, AS FROM MODEL 1977
To protect wiring, etc. against abnormally heavy current
loads, e.g. in the event of a short circuit, and to reduce
the fire hazard if this should occur, the electrical system
is provided with fuses grouped in a fuse box on the right
wheel housing in the engine compartment. All parts of
the system are fused except the headlights and the ignition system. A label by the fuse box shows which fuses
protect which circuits.
In addition to these fuses there is a 3-amp fuse for the
headlight wiper system, placed in a separate holder.
IMPORTANT
As 3A, 5A, 8A and 16A fuses are the same length,
there is a risk that they may be confused. If a heavier
fuse than the correct one should be fitted by mistake, there will be a risk of electrical components
and wires being damaged.
NOTE
Always check when putting in a new fuse that it
makes proper contact. If a break in any circuit is
suspected, check the fuse contacts first. If the test
is made with a voltmeter, the maximum permitted
potential drop is 0.1 V.
5'lt\B
.l.
371-1
Page 380
...
~
WIRING DIAGRAM, MODEL 1975
I
N
Details of wiring diagram, seep. 371-4
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
30.
31.
32.
33.
34.
35.
Battery
Alternator
Voltage regulator
Starter motor
Ignition coil
Ignition distributor
Resistance, low beam
Lighting relay
Headlight dimmer/flasher switch
Light switch
High beam
Dimmed beam
Front parking light
Tail light
Number plate light
Resistance switch, instrument panel illumination
Switch I ight
Instrument panel light
Glove compartment and heater control light
Ignition
Ignition relay
Fuse box
Direction indicator flasher unit
Direction indicator switch
Hazard warning signal switch
Hazard warning signal repeater
Direction indicator lights, L
Direction indicator lights, R
Stop light contact
Stop lights
Back-up light contact
Back-up lights
Choke warning light
Choke control contact
Ventilator fan switch
43.
44.
45.
46.
47.
and 371-5.
COLOR CODE
BL
BR
GL
.GN
GR
RD
BLUE
BROWN
YELLOW
GREEN
GREY
RED
BLACK
WHITE
BLUE/WHITE
BROWN/WHITE
GREEN/WHITE
RED/WHITE
sv
VT
BL/VT
BR/VT
GN/VT
RD/VT
4
GR
48.
49.
50.
51.
52.
53.
54.
.55.
56.
57.
58.
59.
60.
61.
62.
63.
64.
65.
66.
67.
68.
69.
70.
71.
1.5
t
CABLE CROSS-SECTION, MM2
COLOR OF CABLE
CABLE REF.NO.
36.
37.
38.
39.
40.
41.
42.
Ventilator fan motor
Radiator fan motor
Radiator fan relay
Radiator fan thermostat contact
Horn
Horn contact
Brake warning contact
72.
73.
74.
89.
101.
113.
)
Handbrake contact
Oil warning contact
Temperature transmitter
Fuel level transmitter
Combination instrument: fuel gauge, fuel warning
light, temperature gauge, oil warning light, ignition
light, brake warning light, high beam_indicator
light, direction indicator repeater.
Cigarette lighter
Clock
Dome light, door pillar
Dome light, rear view mirror
Ignition switch light
Interior lighting switch
Door contact, interior lighting
Trunk light
Trunk light contact
3-pin connector
12-pin connector
2-pin connector
1-pin connector
Wiper and washer system switch
Windshield wiper
Washer motor
Seat heating element with thermostat
Fuse holder, headlight cleaning device
Headlight wiper motor
Headlight wiper motor relay
Not in Great
Handbrake contact
Britain
Seat contact
Seat belt contact, L
Seat belt contact, R
Warning light, seat belts
Service outlet, ignition setting
Resistance, low speed, fan
Space for start inhibitor relay
Space for safety relay
Space for relay for electrically heated rear window