Interior light problem

[MKivSupra_Rob]

So i've just started getting a really odd problem with the interior lights. So i set it to door, so they turn on when the door is open or whne the door handle is pulled. now this all works fine, but when i unlock the door with the key from the outside, the lights turn off. and no matter what i do they;re off, whether the door is open closed locked.
Now, when i punch the light, the turn back on, and it all works fine again, until i use the key to unlock again. Anybody know what could be causing this?

 

[PROJECT N00b]

i have no idea...hopefully the electronics expert comes in. maybe its just a loose something.

 

[MKivSupra_Rob]

i have no idea...hopefully the electronics expert comes in. maybe its just a loose something.

hitting the light itself to fix it makes me htink its somehting loose in there, but then the door key lock making it all turn off really confuses me. hopefull when i take off that light i'll see a wire barely makign a connection or something.

 

[CRE]

The only thing I can think of would be a fault in the Integration Relay #1, which, as far as I know shouldn't be wired into the lock. The only option left would be some creative wiring with the security switch that is attached to the lock cylinder.

Does the stock security system arm and disarm with the key?
http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?Section=Main&Page=68

 

[MKivSupra_Rob]

86.5, no security system that i know of. where is this Integration Relay #1 located?

However i do suspect some of the wiring may have came on the 86.5s for the features on later years, example, before i had this problem where my horn would go off, not on and off repeatedly, just HOOOOOOOOOOONNNNNNNNKKKKKKKKKKKKKK non stop, as well as the headlights popped up and brights on, this was all at 4am with me sleeping inside. IT happened every now and then on humid nights/rainy nights. so i assumed it was a cross somewhere and after removing fuses it turned out to be the radio fuse. So basically im assuming it was the radio anti theft devise (that my car doesnt have) although the wiring may have been put in but no relays/sensors. however if something were to cross and give power to those wires, horn and lights, only without the relay. that one was an easy fix though, just new wiring for the radio.

 

[Nick M]

The EWD misspelled cylinder...

Anyway, the integration realy provides the ground. And the cylinder lock sends a voltage signal when you cycle it. That should turn it on, not off. This makes me think there is a problem in the integration relay itself.

 

[PROJECT N00b]

my 86.5 has a security system.

and its only engaged by locking the door on the drivers side.

 

[MKivSupra_Rob]

my 86.5 has a security system.

and its only engaged by locking the door on the drivers side.

oh wtf? how do i set it? to see if i have it. i;m 99% sure mine has no security system

 

[CRE]

oh wtf? how do i set it? to see if i have it. i;m 99% sure mine has no security system

I'm 99% sure someone just got very creative with your car's wiring. Try locking the car from the passenger side. There's a spot on the dash that is labeled "Security", the status LED is right there.

 

[IJ.]

In the dome light assembly there's a couple of ground wires riveted in place on my car this was the culprit and after 9 years I decided to repair it

 

[PROJECT N00b]

oh wtf? how do i set it? to see if i have it. i;m 99% sure mine has no security system

locking the car from the drivers side will lock all doors (including hatch) and will set the alarm. if you try to open the hatch or the passenger door with the key the alarm will sound.

unlocking the car from the drivers side will turn off the alarm. im sure you know this...i think im just repeating myself. early morning.

 

[akito]

sorry im not trying to thread jack but my dome is never on since i got my car. I tried to take it out but it seems very hard to pull out and i dont want to force it and possibly break something in there. Fuse for the dome light is good. Is there any easier way to take it out or do i have to pry it with something or does it just snap open when pulled hard on it?

 

[staticpat]

Just pry it, it won't snap. As 1J. mentioned a common problem on the dome lights is the rivets used for electrical connections, they suck.

 

[CRE]

locking the car from the drivers side will lock all doors (including hatch) and will set the alarm. if you try to open the hatch or the passenger door with the key the alarm will sound.

unlocking the car from the drivers side will turn off the alarm. im sure you know this...i think im just repeating myself. early morning.

You've got some bad switches, there's one on each cylinder. The switches on the driver and passenger lock assembly should both arm and disarm the theft deterrent system. while the one on the hatch lock just disarms it:

http://www.cygnusx1.net/Supra/Library/TEWD/MK3/manual.aspx?Section=Main&Page=123

 

[Nick M]

Just pry it, it won't snap. As 1J. mentioned a common problem on the dome lights is the rivets used for electrical connections, they suck.

So after 10 years of ownership and 5 cars, the fact that my rivets have never been bad is just luck huh?

I don't know 1J, how common is it?:biglaugh:

 

[CRE]

So after 10 years of ownership and 5 cars, the fact that my rivets have never been bad is just luck huh?

I don't know 1J, how common is it?:biglaugh:

I'd estimate that perhaps 1 out of 10 have had it happen. It's common enough.

 

[MKivSupra_Rob]

So i realized it doesnt turn off EVERY time i unlock the door, so it could very well be shitty grounds. How do i get at these lights? just pull it off or is there some sort of screw or bolt? Also, definatly no security system of any type, i can open it from any lock after being locked for mthe drivers door and it does nothing. also when i was in the trunk during bodywork the trunk just has a lock on it and the csble to open it fro mthe inside, no electronics going to it and no where for electronics to connect to it.

 

[Nick M]

The cover pops off with a pocket scredriver from snap-on. It fits in the groove provided.

So your security light does not illuminate after locking the driver door from the outside with the key?

 

[IJ.]

Nick: 100% hit rate here the one car I've owned had corroded rivets

 

[Nick M]

I think a great deal has to do with the climate the car is used in. Nothing about "1J"?