Operation CHARM: Car repair manuals for everyone.

Diagnosis By Symptom - Turn Signal Switch

NOTE: This diagnosis covers mechanical problems only.

TURN SIGNAL WILL NOT STAY IN TURN POSITION
^ Foreign material or loose parts impeding movement of yoke.
^ Broken or missing detent or canceling spring.

TURN SIGNAL WILL NOT CANCEL
^ Loose switch mounting screws.
^ Broken switch or anchor bosses.
^ Broken, missing or out of position detent, return or canceling spring.
^ Worn canceling cam.

TURN SIGNAL DIFFICULT TO OPERATE
^ Turn signal lever screw loose.
^ Broken or distorted yoke. Replace switch.
^ Loose or mispositioned springs.
^ Interference caused by foreign material.
^ Loose turn signal switch mounting screws.

TURN SIGNAL WILL NOT INDICATE LANE CHANGE
^ Broken lane change pressure pad or spring hanger.
^ Broken, missing or mispositioned lane change spring.
^ Jammed base or wires.