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Hi polo people. Hope you're as well as can be. I'm hoping to get some help with basic electrics if it's okay. I've been running nightbreakers, (no upgraded loom, just changed stock bulbs for nightbreakers,) in my polo for a couple of years. Been very happy with them. Noticed last week that my driver side head light wasn't working. Got another set, changed it out and the new doesn't work either. The small bulb in the same light works, just not the nightbreaker. I want to test the wires but want to make sure i'm doing it correctly. To check the wires that connect to the bulb, if i set my multi meter to lowest amount of ohms and put the positive probe into each of the three terminals that connect to the end of the bulb, do i put the negative probe on the negative terminal of the battery, the positive or somewhere else? Do i need to disconnect the battery negative while i test the wires? Thank you for stopping by and any guidance you're able to leave. Keep safe.