00 Toyota 4runner no headlights daytime running light work fuses good new switch new main relay not receiving ground to activate manually pull back switch high beam works any ideas?

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WOW! That's weird. But then this is electricity and its weird by nature. Yet it also has rules and the thing I get most is that the simplest answer is usually the best answer. You have a connection that either burned came loose OR a wire has broken or been cut. Question is where is it, the connector or the wire?
The fact that the lights come on when you pull back the lever means you have everything necessary for the system except a path with the switch on. Check the connections to the switch and the lights and ensure they are on then look for a loose connector somewhere, probably by the feet or in the engine. Mine was behind the glove box. Move them around with the lights on and see if anything happens.
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What is wrong if a 1999 Prism daylight running lights work but headlights go out when the dash lights come on; column switch will not turn the headlights on and high beams don't work at all?

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1988 Toyota pickup with no low beams and only High beams when the switch is pulled forward Also the high beam indicator is always on when turning the headlights on yet no lights are actualy on How can?

Answer . \nI finally figured out this problem and found that this problem also occurs in some newer Models (early 1990s). The problem is an open ground coming from the wiring connector found under the stearing column. The way to troubleshoot this problem is to: Physically look at the wires on the (MORE)

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\n. \n Answer \n. \n. \nThere are 2 fuse boxes/panels in a 99 suburban -- probably the same in other years as well -- one at the end of the dash on driver's side and one in engine compartment driver's side near the firewall. According to my manual, the DRL Relay is fuse number 15 at the end (MORE)

Any idea how to troubleshoot faulty daytime running lights on a 1999 Chevy Suburban 4x4 that has a good DRL fuse and dash light along with working low and high beams?

This may sound funny, but make sure the parking brake is completely released Answer The daytime running lights have a fuse, relay, control module, and a diode. The last three are located under the left side of the instrument panel. They will all need to be checked. You may also have a short o (MORE)

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Answer . \nupdate: all of the sudden the lights started working. Hmmmm, guess that proves it's a bad relay or loose connection someplace. Sucks though because I can't isolate the problem if it's not happening. (don't you just hate electrical problems) Guess I'll replace the relay, clean/check th (MORE)

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What can be checked that has caused the low beams even with newly replaced bulbs working on daytime running light voltage on low beam but fine on high beam ground fuses and sockets fine?

You can check the ground in the wiring if nothing else works. However, it would also be a good idea to see if you are just making a simple mistake. Sometimes the light-on switch is separate from the hi-beam/lo-beam switch; try pulling back on the turn signal lever while the light is on. It should sw (MORE)

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