Turn Signal Switch
This diagnosis covers mechanical problems only. Refer to Combination Switch in Lighting System section for electrical diagnosis.
TURN SIGNAL SWITCH DIAGNOSIS
| Condition | Possible Cause | Correction |
|---|---|---|
| Turn Signal Will Not Stay In Turn Position | Foreign material or loose parts preventing movement of yoke. | Repair or replace signal switch. |
| Broken or missing detent or canceling spring. | Replace signal switch. | |
| Turn Signal Will Not Cancel | Loose switch mounting screws. | Tighten mounting screws. |
| Switch or anchor bosses broken. | Replace turn signal switch. | |
| Broken, missing or out of position detent, return or canceling spring. | Replace turn signal switch. | |
| Worn canceling cam. | Replace turn signal switch. Turn Signal Difficult To Operate | |
| Turn signal switch arm loose. | Tighten arm screw. | |
| Broken or distorted yoke. | Replace turn signal switch. | |
| Loose or misplaced springs. | Replace turn signal switch. | |
| Foreign parts and/or material. | Repair turn signal switch. | |
| Loose turn signal switch mounting screws. | Tighten mounting screws. | |
| Turn Signal Will Not Indicate Lane Change | Broken lane change pressure pad or spring hanger. | Replace turn signal switch. |
| Broken, missing or misplaced lane change spring. | Replace turn signal switch. | |
| Base of wire damaged. | Replace turn signal switch. | |
| Hazard Switch Cannot Be Turned Off | Foreign material between hazard switch to turn signal switch body. | Repair or replace hazard switch. |
| No Turn Signal Lights | Electrical failure in chassis harness. | Refer to section. |
| Inoperative turn signal flasher unit. | Replace flasher unit. | |
| Loose chassis harness connector. | Repair loose connector. | |
| Front or Rear Turn Signal Lights Not Flashing | Burned-out or damaged turn signal bulb. | Replace bulb. |
| High resistance connection to ground at bulb socket. | Repair bulb socket. | |
| Loose chassis harness connector. | Repair loose connector. |