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Old 01-03-2016
Thread Starter
Join Date: Jan 2016
Location: Coquitlam BC
Posts: 1
Turn signals sometimes work

Hi all! I am glad to have found this forum 😊 I recently got my dads 2010 4x4 ranger 4liter motor.
I don't think he used it much as it has only 30k on the odometer and still has that new car smell. (Dad is/was94) anyway the turn signals "froze" the other day, so I checked the bulbs and they are all good.
I started her up this morning and the turn signals (and 4wayvflashers) worked fine. I did a little bit of experimenting and discovered that if I use the high beams then the signal lights freeze. If I turn the engine off for a minute or so then start her up again then the signals/4 way flashers work fine.
I am guessing that the problem might be some sort of module in the steering column?
Thanks for your help!
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Old 01-03-2016
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iTrader: (1)
Join Date: Jan 2014
Location: Vancouver, BC
Posts: 7,586
2010 Ranger will use 1 wire to each rear bulb for both turn signal and brake light signal.

The multi-function switch(turn signal stalk) is what controls that.

Wire from the brake pedal switch runs up to the multi-function switch, if turn signals are off then brake light power runs thru the switch and both rear bulbs light up.

If you turn on the turn signal then it will cut brake light power on that side and pass flashing power to the bulb on that side.

You could try a new flasher, there are two of these, one for turn signals, one for 4-ways

But your description that turning on the High Beams(using multi-function switch) causes a failure makes me think problem would be in that switch, not the flasher or wiring.
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Old 01-15-2016
Join Date: Jan 2016
Location: joplin, mo
Posts: 3
2001 ranger right front turn signal has quit working, the other 3 work fine.
I replaced the bulb twice (they come in pairs thot maybe bad from factory),
The fuse is for all 4 and is good and the parking light works. HELP!!!!
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