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Old 08-12-2019, 12:57 PM   #6
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Join Date: Mar 2012
Location: Ft. Leonard Wood
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Pull the switch out and spray electrical contact cleaner INSIDE of it (by spraying down the gap between the shaft and body) while working the switch back and forth. Do this a few times.

If it fixes your issue, you just had carbon buildup on the switch’s internal contacts. If it doesn’t, the switch is failing mechanically and should be replaced.

One test you can do is to put a volt meter on the low beam contact in the headlight connector (with headlight removed and headlight switch on) and see if you are getting power. If not, do the same test at the fuse. If still no power, it’s the switch.
If you do have power at the connector, it’s the headlight (make sure it’s connector pins aren't bent).

Reverse right/left for the car side of the connector:
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