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-   -   tail-light help (http://www.toyota-supra.info/forums/mkiii-supra/6414-tail-light-help.html)

hangsupra 10-15-2006 08:50 PM

tail-light help
 
when i turn on the headlight at night.. my headlight come on but not my tail light...

what i have done:
i replaces the relay for the headlight under the hood and also the one under the driverside foot panel n taillight failer in the back of the trunk but it didnt that didnt help at all... and beside that i already replace all the bulb in the back tail light... it didnt solve the problem either... so now i'm doom...

when i step on the brake padel... it doesnt matter the headlight on/off... all the brake light from the back tail light comes on also the third brake lights too... so i doom now... i dont know where else to check... can anyone help me please... cause i dont want to drive at night n get myself a ticket from the pig...

Murd 10-16-2006 02:42 PM

Get a test light and check your wires while your headlights are on. It'll tell you if you're getting current back there. If you're not keep going up the wire till you find where the issue is.

hangsupra 10-17-2006 12:18 AM

Quote:

Originally Posted by Murd
Get a test light and check your wires while your headlights are on. It'll tell you if you're getting current back there. If you're not keep going up the wire till you find where the issue is.


i did do a test light but i didnt found anything...


if i remember right... only find one positive wired only... and the rest were blank...

so i'm not sure how many hot/positive wired i suppose to have while the headlight is on...

anything else i can check....

Murd 10-17-2006 08:32 AM

Hmmm... If you're getting current on the wire back there, you should be getting light. Make sure the plug isn't corroded in any way, and make sure it's getting connections where it's supposed to. I've had some where the back spring wasn't connecting properly, and some where the corroded plug caused a bad ground. Check to see how it's grounded too. If it's a ground wire trace it back and make sure it's grounded properly. If you can have someone press on the brakes, so you can see which wire is the hot brake wire.

Multistrada1 10-19-2006 12:52 AM

The problem is likely under the hood. Mine just did almost the same thing except mine had taillights but not brake lights. I looked all over and could not find anything wrong. The mechanic found a loose wire that had broken its solder connection. They found it in a hard to check place under the master cylinder.

hangsupra 10-19-2006 01:24 AM

Quote:

Originally Posted by Murd
Hmmm... If you're getting current on the wire back there, you should be getting light. Make sure the plug isn't corroded in any way, and make sure it's getting connections where it's supposed to. I've had some where the back spring wasn't connecting properly, and some where the corroded plug caused a bad ground. Check to see how it's grounded too. If it's a ground wire trace it back and make sure it's grounded properly. If you can have someone press on the brakes, so you can see which wire is the hot brake wire.


i forgot to do that... let other people step on the brake n do the check wired... i need to do that... anything else i suppose to check...

hangsupra 10-19-2006 01:25 AM

Quote:

Originally Posted by Multistrada1
The problem is likely under the hood. Mine just did almost the same thing except mine had taillights but not brake lights. I looked all over and could not find anything wrong. The mechanic found a loose wire that had broken its solder connection. They found it in a hard to check place under the master cylinder.


huh? under the master cylinder... is it the brake or the clutch cylinder...

Multistrada1 10-19-2006 02:55 AM

Mine was in a wire that led from the master cylinder. Just keep checking wires, since yours is not in the brake light system it may not be down under like mine was.

hangsupra 10-19-2006 11:53 PM

Quote:

Originally Posted by Multistrada1
Mine was in a wire that led from the master cylinder. Just keep checking wires, since yours is not in the brake light system it may not be down under like mine was.


ok i keep that in mind...

hangsupra 10-19-2006 11:55 PM

does anyone know how many hot wired suppose to be on while i turn the head light on...

how many hot/positive wired i suppose to have ont he back tail-light... if you know... then wat color or wired pin was it... please help out..

Murd 10-20-2006 02:18 AM

One hot wire for tail lights, if the brake is on, then 2 hot wires. Unsure on color of wires however. Do your front marker lights come on? the yellow ones? If they do it's def. something in the back of the car, If they don't it's something in the front. Another thing, take your test light and make sure you're getting current to the fuse on the driverside kickpanel. The 15A fuse labeled tail, while the headlights are on of course.

hangsupra 10-21-2006 01:11 AM

Quote:

Originally Posted by Murd
One hot wire for tail lights, if the brake is on, then 2 hot wires. Unsure on color of wires however. Do your front marker lights come on? the yellow ones? If they do it's def. something in the back of the car, If they don't it's something in the front. Another thing, take your test light and make sure you're getting current to the fuse on the driverside kickpanel. The 15A fuse labeled tail, while the headlights are on of course.

the fuse on the driverside kick panel is good.. it lights up when i test it...

also at night.. i turn the headlight on... all the headlight up in the front comes on... even tho.. i turn the hazard aka turn signal on... it come on too... but for the back... i only got the brake while i step on the brake padel... and i only get the licese light come on at night when i turn the headlight on... and also the hazard/turn signal for the back only... beside this.. nothing on the back comes on...


ok i will work that on this weekend alright.. cause i dont have times at all.. but i try to get that done by this weekend tho... so yeah...


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