MULTI-FUNCTION SWITCH
DESCRIPTION
The multi-function switch is secured to the upper
steering column housing at the top of the steering
column, just below the steering wheel (Fig. 17). The
visible parts of the multi-function switch are the turn
signal control stalk that extends through a dedicated
opening in the left side of the upper steering column
shrouds, the windshield wiper/washer, exterior light-
ing control stalk that extends through a dedicated
opening in the right upper steering column shrouds,
the hazard warning switch push button that pro-
trudes through an opening in the upper steering col-
umn shroud on the top of the steering column. The
remainder of the switch, its mounting provisions, and
its electrical connections are all concealed beneath
the steering column shrouds. The multi-function
switch control stalk has both nomenclature and
International Control and Display Symbol graphics
applied to it, which identify its many functions. An
International Control and Display Symbol icon for
“Hazard Warning” is applied to the top of the hazard
warning switch push button.
The switch housing and its controls are constructed
of molded black plastic. A connector receptacle with
up to twenty terminals is located on the back of the
switch housing and connects the switch to the vehicle
electrical system through a take out and connector of
the instrument panel wire harness.
The multi-function switch supports the following
functions and features:
• Continuous Wipe Modes - The control knob of
the multi-function switch provides two continuous
wipe switch positions, low speed or high speed.
• Intermittent Wipe Mode - The control knob of
the multi-function switch provides an intermittent
wipe mode with multiple delay interval positions.
• Washer Mode - A button on the end of the con-
trol stalk of the multi-function switch provides
washer
system
operation
when
the
button
is
depressed towards the steering column.
• Hazard Warning Control - The internal cir-
cuitry and hardware of the multi-function switch pro-
vide detent switching for activation and deactivation
of the hazard warning system.
• Exterior Lighting Control - The internal cir-
cuitry and hardware of the multi-function switch pro-
vide for activation and deactivation of exterior
lighting.
• Headlamp Beam Selection - The internal cir-
cuitry and hardware of the multi-function switch pro-
vide detent switching for selection of the headlamp
high or low beams.
• Headlamp Optical Horn - The internal cir-
cuitry and hardware of the multi-function switch
includes momentary switching of the headlamp high
beam circuits to provide an optical horn feature
(sometimes referred to as flash-to-pass), which allows
the vehicle operator to momentarily flash the head-
lamp high beams as an optical signalling device.
Fig. 17 MULTI-FUNCTION SWITCH
1 - TURN SIGNAL CONTROL STALK
5 - CANCELLING CAM
2 - HAZARD WARNING SWITCH
6 - PANEL DIMMER/INTERIOR LIGHT SWITCH
3 - WINDSHIELD WIPER/WASHER CONTROL
7 - EXTERIOR LIGHTING CONTROL/FOG LAMP
4 - WINDSHIELD WIPER/WASHER SWITCH RETAINING SCREWS
8L - 16
LAMPS/LIGHTING - EXTERIOR
PL/SRT-4