Strange Intermittent HID Headlight Behavior

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Old May 20, 2021 | 10:32 PM
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Strange Intermittent HID Headlight Behavior

Sometimes the left one doesn't turn on, sometimes the right one doesn't turn on, sometimes neither turn on, and sometimes they both work. Any ideas?

Tried multiple bulbs, fuses are fine, relays look okay, battery is good (14.5 V while running). Could it be both ignitors or ballasts going wonky together? Seems unlikely. Everything else electrical seems fine.

Any ideas?
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Old May 21, 2021 | 07:22 AM
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From: Tempe, AZ
Originally Posted by TheMightyQuinn
Sometimes the left one doesn't turn on, sometimes the right one doesn't turn on, sometimes neither turn on, and sometimes they both work. Any ideas?

Tried multiple bulbs, fuses are fine, relays look okay, battery is good (14.5 V while running). Could it be both ignitors or ballasts going wonky together? Seems unlikely. Everything else electrical seems fine.

Any ideas?
I replaced one of the ignitors a few years ago and that one still does it from time to time, reseating the light bulb helped a little bit for a while then the issue came back..
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Old May 21, 2021 | 09:44 AM
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Mine would do that a lot until I replaced both the ignitors and ballasts with nice aftermarket ones. Then they kept doing it for a little bit until I tightened all the connections, and now it only happens very rarely and just on one side. I have a feeling it's somewhere in the remaining OEM wiring that goes to the ballasts in the first place, but I haven't made the time to dig in yet.
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Old May 21, 2021 | 10:00 AM
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Which aftermarket igniters/ballasts did you get?
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Old May 21, 2021 | 10:02 AM
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I'm running Morimoto equipment for my HID system - they're pricey but very very nice. I've got a thread here that has the full product list.
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Old May 21, 2021 | 11:09 AM
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Thanks. It looks like the Morimoto XB35 2.0 is the one I need. Does that kit include the correct igniters/plugs or would I need an adapter?
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Old May 21, 2021 | 11:20 AM
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I'm not sure, but the Compatibility section of the page you linked says that it works with any bulbs that have "AMP" style inputs. So the answer depends on what bulbs you're running, really. At this point if you're shelling out that much, may as well toss in a few more bills and get new bulbs that fit.
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Old May 21, 2021 | 11:55 AM
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Originally Posted by TheMightyQuinn
Thanks. It looks like the Morimoto XB35 2.0 is the one I need. Does that kit include the correct igniters/plugs or would I need an adapter?
Originally Posted by Arkady
I'm not sure, but the Compatibility section of the page you linked says that it works with any bulbs that have "AMP" style inputs. So the answer depends on what bulbs you're running, really. At this point if you're shelling out that much, may as well toss in a few more bills and get new bulbs that fit.

You need that Matushita repair kit: https://www.theretrofitsource.com/ma...AIR?quantity=1


This has the pigtails that makes it 'plug and play' to the existing wiring.

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Old May 21, 2021 | 02:21 PM
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ThoiBoi comes in clutch once again!
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Old May 23, 2021 | 05:29 PM
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Thanks. I'll try the Matushita kit.
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Old May 23, 2021 | 08:04 PM
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for completeness i went through the troubleshooting steps in the manual (page 22-165) and everything was fine except for continuity through the igniter unit:



So i guess that confirms i need to replace the whole assembly.
Igniter troubleshooting
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