Headlights won't turn off. - was: Need some help plz!!!
 

Hi all,

My supra headlights won't turn off even when the engine is turned off and the dash lights and other driving lights won't come on either. But fog lights work and interior lights work as well. I have checked all the fuses and everything is seems ok.
But here is the weird thing after reconnecting the battery everything works again just for that one time and after that every craps out again.

Any idea??

Thks in advance

First get a young priest and an old priest!
your fog lights run their own wire. its connected to the headlights but just for power. ( I extremely simplified that)
your headlights don't turn off with the engine even if they were working correctly, you have to manually toggle them on and off. your interior lights are not connected to your headlights at all.
I would first say something about headlight relay or headlight switch. let me dig into this a tad and ill re-eddit with my findings. you mentioned that your dash lights do not come on. I would rule out switch.and go with relay. ill check into this more.
http://www.cygnusx1.net/Supra/Librar...aspx?S=BE&P=17
is the tsrm trouble shooting.
http://www.cygnusx1.net/Supra/Librar.../BE/BE_017.gif

Yes I manually toggled them off. When I say driving lights I mean none of my exterior lights come on, except for headlights n fog lights.

Thx alot for ur help..

headlights up and on is what your experiencing all the time until you unplug your battery? when you toggle the switch all the way down. your headlights continue to stay on? hmm wish I knew a troubleshoot method to rule out relay and verify switch.
and none of your running lights come on at all. I would say relay! just guessing tho. but defiantly cheaper then the headlight switch

i can't determine if its a switch issue or relay. Ill dig more but hopefully someone will chime in and set us straight. in the meantime ill search for it.

here's a relay test
http://www.2carpros.com/how_to/how_d...ck_a_relay.htm

That's right. Headligghts stay up all the time even when I toggle them off.

its your headlight switch man. sorry :(
I just recalled that we don't have stock headlight relays.

The relay is behind the hood release latch inside the dash, correct? So my dash light and driving lights are all tied with the switch?

yep. all from your headlight switch
well your instrument lights are controlled by a reostat. (dimmer) but do they turn on less either your running lights or headlights are on? no. they get power from the same place your headlights do.
It's classic symptoms of faulty headlight switch. check your local junkyards. see if this link can yield anything
http://car-part.com/ just a junk yard database. check Pullapart.com
Oh and while replacing your switch be careful of that little spring. its a pain.
I feel down about giving you bad news. Wish I could help more buddy. good luck.

ok, thx for the help. I guess I have to look for a headlight switch .

Thx again Green7mgte

any time buddy.

just on the off chance you missed something
check the 30 amp RTR fuse. and the grounds for the headlight retractor plugs to the retracor computer. just for good measure before you start shelling out some money.

The dash light won't light up and the climate control will go dark when the marker's or the headlights are on if the dimmer is burned out or disconnected. To test this one part just pull the dimmer out and jumper the white wire with black stripe to the white wire with green stripe.

As for the headlights, I'd start with testing the switch.

The headlights on our cars will turn off after the car is turned off if you open the door. ;) If this isn't happening, then I's skip the switch and head straight to the relay.

I walked away from my turned off car countless of times with the running lights still on. no ding or anything when i exit my vehicle. eek maybe im having problems! i just figured I didn't have a light dinger

Doesn't ding... they should just turn off (but remain up) once you open the door. I don't know that this ever changed... was the same on my '93 MR2 and is the case on my '88 and my friend's '90.

Hey Green7mgte, thx for the tip. After checking everything out I finally found the problem. My breaker kicked out so I just reset it n everything is gravy again...:bouncy: :rofl2:

I can't believe such a simply problem could cause so much headache.

Thx again bro..

:frown: :frown: :squint: I spoke too soon. It seems that everything is working until I start the engine. If I have my headlights on when the start the engine they stay on but when I turn them off they won't come on again. Then when I disconnect and reconnect the battery everything works again until I turn on the engine..

WTF!!!!

Is this faulty headlight switch as green7mgte mention before??

I have taken out all my extra electrical components and still same result....

Anybody????