Impulss Posted May 20, 2010 Report Posted May 20, 2010 My ke70 has h4 bulbs (first keto, not sure if this is normal) and the high beams work fine but the low beams don't work at all. I've tried replacing the bulbs that are currently in my subaru (in working condition) and put them in the keto and no go. I've tested all the wires running to the lights and all of them have voltage. I didn't have a multimeter only a fuse tester, so not sure on the voltage. This is my first post, but i hopefully will be seeing alot more of you guys as I just purchased my keto a few weeks ago and it needs work. Many thanks, Declan Quote
Ella Posted May 20, 2010 Report Posted May 20, 2010 check all your earths mate, id bank on it being this... Quote
Impulss Posted May 20, 2010 Author Report Posted May 20, 2010 Is low beam on a different earth to the low beam? Going out to look now >.< Quote
Evan G Posted May 20, 2010 Report Posted May 20, 2010 could also be the indicator stalk/fuses/relay/wiring Quote
Hiro Protagonist Posted May 20, 2010 Report Posted May 20, 2010 Checked the combination switch? Quote
Impulss Posted May 21, 2010 Author Report Posted May 21, 2010 Err... Whats a combination switch? There is a wire running off the passenger side headlight that runs to a relay, can take pictures and upload if necessary, the relay is working afaik. Checked the earth coming off it (attaches to the battery earth) and it seemed alright, sanded off some paint anyway just to make sure but nothing yet. By indicator stalk you mean the lever coming off the steering wheel right? How would i go about seeing if thats working? The parkers work if it makes a difference. Fuses were one of the first things i checked, but will check again just to make sure. Quote
jono1986 Posted May 21, 2010 Report Posted May 21, 2010 (edited) If you have power at the back of the unit, it means everything is working fine, how do the terminals look in the plug, melted/corroded?? If someone has put to higher wattage lights in the plug can melt or damage the terminals Edited May 21, 2010 by jono1986 Quote
Impulss Posted May 21, 2010 Author Report Posted May 21, 2010 If you have power at the back of the unit, it means everything is working fine, how do the terminals look in the plug, melted/corroded?? If someone has put to higher wattage lights in the plug can melt or damage the terminals They look fine to me. when i tested for voltage i used the inside of the plugs. Should i try and disassemble the plug and give the terminals a clean? Quote
Impulss Posted May 21, 2010 Author Report Posted May 21, 2010 I was standing out there, confused as hell. And it hit me! Like a slap with a rotten fish. I feel kind of stupid now that i didn't notice this before. When i said that i tested for voltages, i tested all 3, and all 3 of the pronges had voltage. That was the problem. The stupid relay that was doing nothing and looking pretty was pumping voltage through the negative terminal on the light. I removed the relay and hooked it up to the negative terminal on the battery and now i have headlights :D Thanks everyone for your help! Declan. Quote
Hiro Protagonist Posted May 21, 2010 Report Posted May 21, 2010 Err... Whats a combination switch? There is a wire running off the passenger side headlight that runs to a relay, can take pictures and upload if necessary, the relay is working afaik. Checked the earth coming off it (attaches to the battery earth) and it seemed alright, sanded off some paint anyway just to make sure but nothing yet. By indicator stalk you mean the lever coming off the steering wheel right? How would i go about seeing if thats working? The parkers work if it makes a difference. Fuses were one of the first things i checked, but will check again just to make sure. Combination switch = indicator + wiper stalks. Quote
Sloth Posted May 23, 2010 Report Posted May 23, 2010 (edited) I was standing out there, confused as hell. And it hit me! Like a slap with a rotten fish. I feel kind of stupid now that i didn't notice this before. When i said that i tested for voltages, i tested all 3, and all 3 of the pronges had voltage. That was the problem. The stupid relay that was doing nothing and looking pretty was pumping voltage through the negative terminal on the light. I removed the relay and hooked it up to the negative terminal on the battery and now i have headlights :D Thanks everyone for your help! Declan. I had a very similar problem a couple of weeks ago with my AE86, like you we tested all three prongs of the headlights and all showed voltage. My gfs dad (who is an electrician) was quite confused saying that was wrong. A little bit of research though told me that toyota do something a little wierd with their wiring by having a constant positive voltage and adding a negative/earth to turn the lights on. The problem in my case (as other people have suggested) was the combination/dimmer switch. This should be located on the stalk (steering column). It's definitely worth a look. Before you removed the negative relay was it clicking when you put on the highbeams? If it was then it's not actually the problem, it's in the switching mechanism. If you are savvy with electrics etc, see if you can get the wiring diagram for your car, or just take a look at the switch in the steering column. (Take a look at the forth page of my project thread near the bottom http://www.rollaclub.com/board/index.php?s...4331&st=45) [Edit: Just thought I'd add that I suck at anything mechanical/electrical, so take everything I say with a grain of salt] Edited May 23, 2010 by Sloth Quote
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