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-   -   Headlamps turning off when Hi-Beam engaged (https://www.impalas.net/forums/16-electrical-wiring/37818-headlamps-turning-off-when-hi-beam-engaged.html)

kiwidave 05-23-2019 10:31 AM

Headlamps turning off when Hi-Beam engaged
 
Interesting one.

I recently replaced my old Hi-Beam headlamps after one of my old ones died with 5-3/4'' Xenon Conversion Headlamp Bulb (High Beam).
Put them in, switched on and aligned them and all was good.
When I finally got around to driving and needing them I engaged the Hi-Beam footswitch and all of the headlamps went out! Not great considering I was driving at the time.
After I disengaged the Hi-Beam switch my main headlamps came back on.
The only difference I can see is the replacements have three pins rather than two but they worked fine when I first put them in, hence why I was able to align them.

Thoughts?

Big Dave 05-23-2019 10:52 AM

Bad switch. They get full of dirt and the contacts are blocked as well as being under a heavy electrical load when they work resulting in pitting and burning.

Big Dave

BA. 05-23-2019 05:04 PM

I'm not disagreeing with Dave here, not at all. Those old switches get troublesome with age....but,

Excuse my ignorance or presumption here but wouldn't/shouldn't a Xenon bulb use a breaker near the headlight with its' own 12v source so that the extra wattage doesn't flow through the 50 yr old wiring?

bicster 05-25-2019 12:17 PM

Good point Dave. 40 years ago I experienced the same problem with a car I had and it ended up being the high beam/low beam switch on the floor. If the new head light switch doesn't fix it try the switch in the floor.

kiwidave 06-07-2019 03:14 PM

UPDATE:

Just thought I'd post that I cleaned the footswitch and connector with Electrical Cleaner and an old toothbrush, let it dry and it's working fine.
Hopefully I don't have trouble with the Xeon bulb drawing too much power as B.A mentioned but for now all good.

Thanks for your help!


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