Toyota Celica Supra Forum banner

1 - 10 of 10 Posts

·
Registered
Joined
·
73 Posts
Discussion Starter #1
I was recently just changing my stereo in my 85 supra. And I didn't disconnect my battery. Well my power wire hit my shifter and sparked. Well it didn't blow my stereo fuse but it did screw my head lights up. They now have a mind of there own, i will turn them on and every time i do it they come up differently. Sometimes half way sometimes one up and one half way and such... What happened
 

·
Registered
Joined
·
2,100 Posts
Killed a relay perhaps?

I'm not sure if that helps... I always disconect the negative ter. when working on my sterio stuff. Was it the power wire leading from the stock harness of the radio plug?

Will
 

·
Premium Member
Joined
·
5,572 Posts
I did the same thing a few months ago. It was a blown fuse and until I replaced the fuse, the headlights had a mind of their own. Check all your fuses, but if I recall correctly it was a fuse for horn that went in my case. You have lost a path to ground and your 12 volts is taking path of least resistance and finding creative ways to mess with your mind!
I don't have time right now but I will go out this evening and figure which fuse it was and see if you've done the same.
 

·
Registered
Joined
·
4,558 Posts
supratoy... if i were you, id disconnect the positive wire from the battery, you can still short the system out with the negative wire taken off, seeing as how cars are negative grounded, and the positive is always live.
 

·
Registered
Joined
·
733 Posts
If you pull the negative cable off, there is no power to short out. The battery no longer exists in the circuit. The other reason to disco the negative is that in case your wrench contacts the car you are in no danger of shorting the battery to ground. Batteries are nothing to play with, very high amperage, and they are potentially explosive.
 

·
Registered
Joined
·
2,634 Posts
I was going to say, what was he talking about? Someone needs electricity 101.
 

·
Premium Member
Joined
·
5,572 Posts
Someone needs a lesson in Logic 101. He already admitted he neglected to disconnect the battery and I am sure learned a lesson there.
You're closing the barn door after the horse is already out.
Anyway, back to the problem. Like I posted earlier, check the HAZ-HORN fuse in the engine room. Besides powering the Horn, Radio, Power Amp. it also powers the Retract Control Relay.
 

·
Registered
Joined
·
73 Posts
Discussion Starter #8
humm

alright well i was lost on what i did but i tried to honk at someone today, and my horn didn't work, what it did was turn off my clock and bogged my car down when i honked, so i checked my horn fuse, it worked but that shouldn't have effected the lights. Like stated above, i didn't read that post untill after i fixed it. Yeah no bombing on me, everybody makes mistakes. And seriously who would check the horn fuse if the headlights were not working. OH well it happens
 

·
Premium Member
Joined
·
5,572 Posts
Re: humm

Trybal said:
...Yeah no bombing on me, everybody makes mistakes. And seriously who would check the horn fuse if the headlights were not working. OH well it happens
I wasn't bombing on you - just pointing you in the right direction. Any disparagement on my part was directed toward the remarks of others who were neither helpful nor kind.
I assume the fuse fixed your problem?
 
1 - 10 of 10 Posts
Top