TURN SIGNAL AND FLASHERS
TABLE OF CONTENTS
page
page
DESCRIPTION AND OPERATION
MULTI-FUNCTION SWITCH . . . . . . . . . . . . . . . . . 1
EXTERIOR LAMPS . . . . . . . . . . . . . . . . . . . . . . . . 1
DIAGNOSIS AND TESTING
MULTI-FUNCTION SWITCH . . . . . . . . . . . . . . . . . 2
REMOVAL AND INSTALLATION
COMBINATION FLASHER . . . . . . . . . . . . . . . . . . . 2
DESCRIPTION AND OPERATION
MULTI-FUNCTION SWITCH
WARNING: ON VEHICLES EQUIPPED WITH AIR-
BAG, SEE GROUP 8M, RESTRAINT SYSTEMS FOR
AIRBAG REMOVAL PROCEDURES.
The multi-function switch (Fig. 1) contains:
• Turn signals
• Hazard warning
• Headlamps
• Headlamp beam select
• Park lamps
• Panel dimmer
• Front Fog Lamp
• Rear Fog Lamp
• Headlamp optical horn
• Windshield wiper
• Pulse wipe
• Mist wipe
• Windshield / Headlamp washer switches.
The multi-function switch is mounted center of the
steering column. There are two levers, one on each
side of the steering column. The left side controls the
signaling and lighting. The right side controls the
windshield wiper / washer and headlamp washer sys-
tem. When the driver wishes to signal his intentions
to change direction of travel, he moves the left lever
upward to cause the right signals to flash and down-
ward to cause the left signals to flash. After comple-
tion
of
a
turn
the
system
is
deactivated
automatically. As the steering wheel returns to the
straight ahead position the turn signals are canceled.
A canceling cam is molded to the clockspring mecha-
nism which comes in contact with the cancel actuator
on the multi-function switch. The canceling cam lobe
pushes on the cancel actuator and returns the switch
to the off position.
If only momentary signaling such as indication of a
lane change is desired, the switch is actuated to a
left or right intermediate detent position. In this
position the signal lamps flash as described above,
but the switch returns to the OFF position as soon as
the lever is released.
When the system is activated, one of two indicator
lamps mounted in the instrument cluster flashes in
unison with the turn signal lamps, indicating to the
driver that the system is operating. The windshield
wiper / wash and headlamp wash system is covered
in Group 8K, Wiper and Washer Systems.
EXTERIOR LAMPS
To turn lamps ON:
• Park lamps, using left stalk turn headlamp
switch to the first detent
• Headlamps, turn switch to second detent
• Headlamp beam select, from low beam to high
beam or high to low, pull left stalk towards steering
wheel. The ignition switch must be in the RUN posi-
tion for the instrument panel high beam indicator to
light.
• Headlamp optical horn, pull left stalk towards
steering wheel, headlamps will stay ON as long as
stalk is held.
• Front Fog lamps, pull switch outward with park
lamps or headlamps ON.
• Rear Fog lamps, pull switch outward with park
lamps or headlamps on and turn switch to the third
detent.
• Panel dimmer, rotating dimmer switch regulates
intensity of the instrument panel illumination. There
are nine detentes (steps) of intensity. Detent 1 is full
brightness and each detent thereafter is lower. Test-
ing the dimmer switch using the continuity test, the
resistance value is measured for each detent. Detents
3 through 8 are measured in equal graduations, up
or down and referred to as linear. Example: if detent
3 was 5 ohms and detent 4 was 7 ohms detent 5
should be 9 ohms.
JX
TURN SIGNAL AND FLASHERS
8J - 1