DIY: OEM JDM HID Headlight Conversion

[DeeBee]

Originally Posted by IllusionX

The Yaris have a ground switch. You may have the wires reversed

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Hi IllusionX,

Thanks for your suggestion. I think the wires are ok since I get power to all other bulbs. In fact I tried swapping positions and the high beams came on at the low beam position.

My suspicion is that somehow there is insufficient power to turn on the HID ballast. I know they work because I have tested them with a portable battery charger and they light up well.

I had a Rav4 where the factory wiring powered HID projectors I had retrofitted without a wiring harness. I drove that for 7 years no problem. I expected the same from my little Yaris