Reply to "Alternator Light always on"

jfb05177Member

quote:
Originally posted by M!ke H.:
The switch appears to be good...
if the D+ wire is grounded then the light goes on an off with the switch as expected...

The part I can't figure out is how the light comes on with the switch off if D+ & B+ are both hooked up.
That would seem to indicate that when the switch is off that the wire going to the light is grounded and the B+ is backfeeding through D+.

If that is the case, that is one of the rectifing diodes has failed and allowing current to leak through, the back feed to make the lamp come on could be through a normal "running" device.

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2/26/182:51 PM

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