Blinker wont turn off after turn

Blinker-relay is malfunctioning. Its mostly located under the dashboard

sounds like flasher unit failure

There is a short or something is broken in the multifunction switch (headlight/turn signal switch). It will most likely need to be replaced.

You need to take ur steering wheel off check your blinker some times it brakes when You push to hard and it stays on the blinker it broke on.. And for your window it's probably striped

there must be a bad bulb somewhere

Defintely sounds like the turn signal switch is bad.
If the flasher was bad, your right blinker wouldn't work.

CHECK PIG TAIL AT RIGHT REAR TAIL LIGHT IF LOOKS BAD OR BURN REPLACE IF OK FIND FLASHER UNDER DASH AND REPLACE.

you have a left side turn signal out in the front or back replace bulb the reason why your bilnkers wont blink is because your flasher relay is bad the relay will be located n the fuse panel under the drivers dash any auto parts store should have the light and the relay in stock replace both of those and youll be in buisness

There are 2 common things that cause this.
1. the hazzard flasher is faulty. the hazzard button and the turn signal flasher are all in one. Sometimes pushing the hazzard button in slightly will get the noise to happen, and is an indication it is faulty.
2. The turn signal switch in the steering column is bad. Turning the turn signal from left to right- very fast and harshly, will sometimes clear it up for awhile.
Tech JK
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The problem with the blinker staying on is most likely the cancel spring. In the steering column you have two cancel springs, one for the right turn signal and one for the left turn signal. your left turn cancel spring is probably broken. to replace this spring requires removing the steering wheel and components. on some models you have to replace the whole turn signal module cause it's all one piece. Check with your local dealer or parts store to see which one you have. Hope this helps you out.