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Bulb failure sensor - failure mode? 200

uid 27's pic
posted by  Art Benstein on  Thu Oct 15 09:43 CST 2009
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last visit: Fri Oct 17 20:10 CST 2014
[RELATED]

Only two modes of failure I've seen so far are (1) the cracked solder joints in the many connections the lamp current must traverse, and (2) the overheated sense coils in the tail light portion David Hunter refers to, which could easily be caused by trailer wiring, or as I have seen, improperly installed dual filament bulbs and attempting to troubleshoot melted aftermarket sedan lamps.

Here's an example of (2) where the two tail light windings are shorted together. This doesn't keep lights from working - it just keeps the warning light on when there's nothing to warn of.



--
Art Benstein near Baltimore

If you think nobody cares if you're alive, try missing a couple of car payments.





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