Headlight relay?

 

I didn't have the time to go over anything so I took it to my mechanic and he tested some working bulbs and they lit up on low. Why both low beams decided to stop working at the same time is a puzzle to me but if the new bulbs go out, I will have it checked by an auto electrical outfit. Thanks for taking the time to reply and hopefully I won't be back on this thread.

 

But would that affect only the low beams and not the high beams?

 

That was just a guess without doing any diagnosing of the problem, and because of the way that the circuit is setup.

High beam Headlights not working

Hey, just wanted to ask if anyone knows if there is a relay for the high beam headlights on my 2010 highlander. They just stopped working the other day. I don't use them that much but wanted to try to get them working again. I have checked both fuses, under the hood, for the left and right...

www.toyotanation.com

It is possible that the light control circuit/relay is not switch the circuit from highbeam to lowbeam. My understanding is that the light control circuit is part of the junction block in the engine compartment.

2008-2010 Toyota Highlander Junction Block 82720-48050 | Express Toyota Parts

2008-2010 Toyota Highlander Junction Block 82720-48050

parts.highcountrytoyota.com

Again, the circuits need to be checked to verify!

 

👌👍

 

Check to make sure the emergency brake pedal hasn't been slightly depressed.

Reason: I know my auto headlights turn on when I'm parked with the engine running, Engaging the emergency brake before starting the car keeps the headlights off.

 

That may be true in Canada but its not in the US. The cars operate differently here. IIRC in CA you cannot operate a vehicle legally without some type of forward lights on. Sadly here in the US we can.

 

Thank you for the insight!!

 

So, I ended up getting two new bulbs. I still don't understand why both lights would go out at once unless one had been out for a while and I didn't notice it and then when the remaining one died, I thought it was both of them. Anyway, the bulbs were both replaced and are working. Thanks for your thoughts. Love this website. It's a great place to turn to for information.

 

Happens more than you now

 

Glad it was an easy fix for you!!!

 

Just remember KISS. More often than not it's all you need

 

I had both low beams go out on my 78 Celica back in 1993. I was baffled and was further confused by the wiring approach used by the bulbs - center terminal is NOT the common one. Not only that, but I had never had to replace a headight on that car before.

But the real answer is simple. Both low beams did not go out at teh same time. One failed without you noticing it, because the high beams both still worked. Then later the other one failed.