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headilght out, but it's not the bulb or a fuse

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Old 11-19-2010, 03:55 PM
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headilght out, but it's not the bulb or a fuse

my left headlight is out, so I went and bought a bulb and put it in today, only to find that the new bulb won't light, either. and the original bulb doesn't look burnt out. I connected the bulb up hanging loose to make sure it was plugged in properly.

I checked all the headlight fuses in the engine-bay fuse box. the right headlight is fine.

what should I check next?

thanks
Old 11-19-2010, 04:02 PM
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Originally Posted by astrophoenix
my left headlight is out, so I went and bought a bulb and put it in today, only to find that the new bulb won't light, either. and the original bulb doesn't look burnt out. I connected the bulb up hanging loose to make sure it was plugged in properly.

I checked all the headlight fuses in the engine-bay fuse box. the right headlight is fine.

what should I check next?

thanks
If the bulb is ok and the fuse is ok, sounds like it is something in between, so how does the harness look? Any damage to it? Can you take a line tester and tap the headlight fuse to see if it is actually getting a current through it?
Old 11-19-2010, 04:13 PM
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switch the light bulbs.... it maybe the ballast or the relay good luck
Old 11-19-2010, 04:36 PM
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the cord to the connecting the bulb plugs into looks fine. I don't have a line tester, unfortunately.

I'm guessing it can't be the relay, since there is only one relay for both headlights, and one of them works. does that sound correct?

that leaves me with either replacing the ballast, or looking for a short somewhere (i.e., getting a line tester). right?

thanks
Old 11-19-2010, 04:48 PM
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If you have HID's its' the Ballast. I had the same issue, got a Lexus ballast of ebay (same Koito part number) for $100.00 and had to hack my headlight to get it in but overall it was pretty easy. It just connects right up but the problem is they put the ballast in before putting the headlight together. I have a thread about it somewhere.

Edit, you have a Touring so you do have HID's.

Here it is.

https://www.rx8club.com/showthread.p...&highlight=hid

Last edited by 9krpmrx8; 11-19-2010 at 04:53 PM.
Old 11-19-2010, 04:55 PM
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9k to the rescue!

that sounds like pita. good luck!
Old 11-19-2010, 05:06 PM
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TX

Originally Posted by 2tone
9k to the rescue!

that sounds like pita. good luck!
It wasn't that bad. A hell of a lot better than paying $1300.00 for a new headlight.
Old 11-19-2010, 06:59 PM
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thanks for the info. I went and ordered a ballast for $136 including shipping (from oembulbs.com)
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