TURN SIGNAL CANCEL CAM
DESCRIPTION
The turn signal cancel cam is concealed within the
steering column below the steering wheel. The turn
signal cancel cam consists of two lobes on a molded
plastic ring that is snapped into the lower hub of the
clockspring rotor. The clockspring mechanism pro-
vides turn signal cancellation as well as a constant
electrical connection between the horn switch, driver
airbag, speed control switches, and remote radio
switches on the steering wheel and the instrument
panel wire harness on the steering column. The
housing of the clockspring is secured to the multi-
function switch mounting housing on the steering
column and remains stationary. The rotor of the
clockspring, including the turn signal cancel cam
lobes rotate with the steering wheel.
The turn signal cancel cam is serviced as a unit
with the clockspring and cannot be repaired. If faulty
or damaged, the entire clockspring unit must be
replaced. (Refer to 8 - ELECTRICAL/RESTRAINTS/
CLOCKSPRING - REMOVAL).
OPERATION
The turn signal cancel cam has two lobes and is
secured to the lower hub opening of the clockspring
rotor. When the turn signals are activated by moving
the multi-function switch control stalk to a detent
position, a turn signal cancel actuator is extended
from the inside surface of the multi-function switch
housing toward the center of the steering column and
the turn signal cancel cam. When the steering wheel
is rotated during a turning maneuver, one of the two
turn signal cancel cam lobes will contact the turn sig-
nal cancel actuator. The cancel actuator latches
against the cancel cam rotation in the direction oppo-
site that which is signaled. In other words, if the left
turn signal detent is selected, the lobes of the cancel
cam will ratchet past the cancel actuator when the
steering wheel is rotated to the left, but will unlatch
the cancel actuator as the steering wheel rotates to
the right and returns to center, which will cancel the
turn signal event and release the control stalk from
the detent so it returns to the neutral Off position.
8L - 24
LAMPS/LIGHTING - EXTERIOR
AN