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Old 08-19-2009, 06:45 PM   #1 (permalink)
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1993 Pickup - No high beams

Hi all!

I posted this on another forum and am not having any luck. Maybe the god's of Pirate will shine upon me?


I have a 1993 Toyota pickup. The low beams work fine. When I switch it to high the headlights go off but the inside high beam indicator does light up. If I pull back on the switch to flash the high beams DO come on. The headlights are WAAYY brighter than on low so I am assuming that the headlights both low and high have to be in working order.



Questions.

If my inside switch was bad, would the high beam indicator light still come on? Seems like it should not.

In my Haynes manual there are 2 relays. One labeled headlight relay, one labeled DIM switch. Both are inline to the headlights. Anyone know where the dimmer relay is located?

Anyone have any ideas what I should try?

Thanks!!
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Old 08-19-2009, 07:43 PM   #2 (permalink)
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High beams

Mine done the samething drove me crazy. Got a used dimmer switch ( made with turn signal) and fixed it
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Old 08-19-2009, 08:21 PM   #3 (permalink)
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High beam indicator works independent of the headlight combo switch. It actually only indicates that the low beams are not on, as current flows from the headlight relay, through the low beam filament, the high beam indicator to ground as shown in the FSM wiring diagram:


Haynes manuals are never a very good reference, especially for electrical things.

More info:
- http://www.4crawler.com/4x4/CheapTri...l#HarnessTypes

And the problem is typically in the combo switch contacts:
- http://www.4crawler.com/4x4/CheapTri...eadlight_Combo

That is if the low beams work fine and in FLASH mode , both the high and low beams come on together. If so, find the contacts that close for high beams (only) vs. the ones that close for low beams (only) and the ones that close in FLASH mode and go from there. Other common problem is a loose connector for those wires down the steering column.
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Old 08-19-2009, 08:43 PM   #4 (permalink)
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i had same problem. just replace the whole combo switch or try could cleaning the contacts like 4crawler suggested
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Old 08-19-2009, 10:59 PM   #5 (permalink)
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From the cheap tricks website

http://www.4crawler.com/4x4/CheapTri...eadlight_Combo

Jon
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Old 08-20-2009, 06:04 AM   #6 (permalink)
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Thanks again 4crawler! I think you finally got through my thick skull! I didn't know you were a member here.

I thought you were referring to the switch that rotates when the wheel turns - not the turn signal/headlight switch.

I will clean the contacts and report back!
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Originally Posted by WLD_OTZ View Post
I googled 'triangulating a circle', and they told me to start in the corner and work outward. It was unpossible. Applying to Obama for more cowbell.
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Old 08-21-2009, 04:53 PM   #7 (permalink)
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Hi again!

Just to close this out it WAS the turn signal/headlight "combo" switch. The contacts looked clean but I filed them anyway, VOILA!! That did it!

Thanks to 4CrawlR!
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Quote:
Originally Posted by WLD_OTZ View Post
I googled 'triangulating a circle', and they told me to start in the corner and work outward. It was unpossible. Applying to Obama for more cowbell.
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