TURN SIGNAL CANCEL CAM
DESCRIPTION
The turn signal cancel cam (2) is concealed within the steering column. The cancel cam consists of a single lobe that is integral to the lower hub of the clockspring rotor. The clockspring mechanism provides 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 lock housing near the top of the steering column and remains stationary. The rotor of the clockspring, including the turn signal cancel cam lobe rotates with the steering wheel.
The turn signal cancel cam is serviced as a unit with the clockspring and cannot be repaired. If ineffective or damaged, the entire clockspring unit must be replaced. (Refer to 8 - ELECTRICAL/RESTRAINTS/CLOCKSPRING - REMOVAL).
OPERATION
When the multi-function switch left (lighting) control stalk is moved to a latched turn signal position, a turn signal cancel actuator is extended from the left inside surface of the switch housing toward the turn signal cancel cam. As the steering wheel is rotated to complete the turn, the cam lobe will contact the actuator, automatically cancelling the turn signal event and releasing the latched multi-function switch left control stalk to the neutral position.