Electrical Controls And Switches - Saab SONETT III Service Manual

1
S 1837
ELECTRICAL CONTROLS AND SWITCHES
General
The ignition lock is located on the steering column stand
and is combined with the starter switch and steering wheel
lock.
IGNITION AND STARTER SWITCH
1. Locating stud
2. Setting mark
3. Marking arrow
4. Cogwheel mounting slot
The ignition and starter switch is secured to the steering
wheel lock by means of two screws. During removal and
installation, the steering wheel lock must be in the locked
position and the switch in the position shown in the figure.
(The ball in the hole nearest the arrow.) Note the locating
lug.
The switch for the ventilation fan has two positions, viz.
full speed and half speed. It is located on the instrument
panel by the heater controls. The switch actuates an
operating relay, through which the fan motor is started.
The relay is mounted on the left side under the instru-
ment panel. See fig.
LOCATION OF RELAYS AND BUZZER
1. Relay for heater fan
2. Buzzer
3. Direction indicator relay
The headlights are switched on with a microswitch and
relays. The microswitch is actuated by the pullrod for
headlight operation. See section 300 "Description".
Switching between high beam and dipped beam is achieved
by lifting the lever for the direction-indicator switch,
thereby actuating a dimmer relay which dims the lights.
The intensity of the instrument lighting can be regulated
with a rheostat located on the left side of the instrument
panel. There is a separate pull-out switch for the parking
lights in the middle of the instrument panel.
Mounted on the instrument panel, close to the heater
controls, is a switch for extra lights. These light only
when the headlights are switched on at high beam. The
relay is mounted in the engine compartment. See also
section 300 "Description".
An automatic reset switch under the steering wheel con-
trols the current to the direction indicators (flashers).
The hazard warning signal switch is located in the middle
of the instrument panel. When the button is pulled out.
all the direction indicator lights and the corresponding
warning lamps flash simultaneously.
The windshield wipers, electric windshield washer and
horns are operated with a lever located to the right of
the steering column. This lever has four positions: neutral,
windshield wipers low speed, windshield wipers high
speed and windshield wipers high speed plus windshield
washer. The horns are activated by moving the lever to-
wards the steering wheel.
The stop-light switch is actuated by the pressure of the
brake fluid and completes the circuit to the stop-lights
when a certain brake pressure is reached.
The switch is mounted on the secondary circuit of the
master brake cylinder.
Brake warning system
Faults in the brake system in the form of leakage or poorly
adjusted rear brakes are indicated by a brake warning
light located in the speedometer. The light is turned on
by a switch located by the brake pedal.
After remedying the fault which caused the warning light
to glow, the switch is reset by pulling it out.
The clearance between the brake-pedal lever and the switch
should be 0.79 ± 0.02 in. (20 ± 0.5 mm).
LOCATION OF BRAKE-WARNING LIGHT SWITCH
A = 0.79 ± 0.02
in. (20 ± 0.5 mm)
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Nov. 1972 SAAB
364-1