03' TL One HID headlight out...how to test lamp vs. ballast ??

I know to swap the lamp with the good one, but another way..

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ndccpf1
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The online parts list shows: Inverter, Control Unit and Ignitor for each side. Looks like the Inverter is made up of of the CU and the Ignitor ...is this true ?

Reply to
ndccpf1

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