Question about 1986 Toyota 4Runner

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High beam 86 SR5, The high beams will not go on when the switch located within the turn signal switch system, is pushed down. The high beams work when I pull on the handle for high beam flash, so it is not the sealed beams. Just the high beam switch will not activate the high beams. Seemed to happen suddenly when cold weathe set it. Any one out there had a similar problem? Thanks

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  • Anonymous Dec 10, 2008

    same on mine, some times when i go to switch to high beams, hte lights go right out. but if i wiggle it lots it works

  • jonesy19 Jan 20, 2009

    replaced the DIMMER SWITCH, OEM Part #84140-26040, which is located on the steering column and required removal of the steering wheel, the two section shroud etc. It IS NOT the left side signal switch device as one Dealer advised as all that does is control the on/off on h/l's, pkg, signal. etc. If only high beam malfunctions, it IS the dimmer switch, nothing else. Parts available deep discount at Super outfit.

  • Anonymous Mar 16, 2014

    High beams won't turn on



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Replace the switc and also ck the hi beam relay

Posted on Dec 22, 2008


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Hello, is sounds like your issues are coming from within your turn signal/high-low beam switch. Most of the time the wires get worn or break and start rubbing around on each other causing troubles within the electrical circuit. Other times the contact switches inside the turn signal/high beam switch/lever wear and loose contact over time. You may be able to see wires leading from switch into steering colum. Check for bad wires, if none you may have to replace switch which you can get from any junkyard for bout 5 bucks plus learn how to take it apart in a junk car no one is worried about getting destroyed. BE CAREFULL WITH AIRBAGS when you pull your steering wheel to fix switch. It is not a difficult job to do.

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