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EarlyBay Forums
Technical
Headlight not working
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<blockquote data-quote="dubselector" data-source="post: 627123" data-attributes="member: 17361"><p>Don't forget to check the actual bulbs themselves - it's not that unusual that when one blows it blows the other one, or when you fit a new one on side the other one gives up - this is due to the filaments gradually burning away over time and getting thinner so even a small increase in current can burn them out. Both the 410 original style and the H4 upgrades are twin filaments so dipped beam can blow whilst high beam remains intact. You can check for continuity with your multimeter by setting it to 200 in the ohms range and connect he black lead to a terminal on the bulb and then the red to the remaining terminals one at time. Good bulb should show a reading of around 01 on these readings. Also do you hear the relay clicking when pull the stalk back for high and low beam ?</p></blockquote><p></p>
[QUOTE="dubselector, post: 627123, member: 17361"] Don't forget to check the actual bulbs themselves - it's not that unusual that when one blows it blows the other one, or when you fit a new one on side the other one gives up - this is due to the filaments gradually burning away over time and getting thinner so even a small increase in current can burn them out. Both the 410 original style and the H4 upgrades are twin filaments so dipped beam can blow whilst high beam remains intact. You can check for continuity with your multimeter by setting it to 200 in the ohms range and connect he black lead to a terminal on the bulb and then the red to the remaining terminals one at time. Good bulb should show a reading of around 01 on these readings. Also do you hear the relay clicking when pull the stalk back for high and low beam ? [/QUOTE]
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EarlyBay Forums
Technical
Headlight not working
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