type 44 charging issues - the plot thickens
human747 at attbi.com
Sun Dec 22 22:39:52 EST 2002
> Review: '90 200 not charging, alt lite not working
> when key first turned on.
> I pulled the alt lite bulb and tested, it tests good
> and lites when power is applied. No visible corrosion
> anywhere I can see.
> Reinstalled bulb, re-connected instrument cluster.
> Still no alt lite when I turn the key on. *Pushed on
> bulb from behind* (wiggle test basically) and it lit!
> Ok, started car. Still not charging. Turned off,
> turned key back to ON, no alt lite again. No amount
> of pushing/playing with or around bulb will make it
It sounds to me like you might have an instrument cluster circuit trace
issue, I think the 200's tend toward this problem.
> Exciter wire connection by "jumper" post in engine
> compartment looks good. Disconnected, I do have a
> ground from the alt to the connector, which I
> understand is correct from reading the archives. This
> ground should become a positive once the car is
with the engine running, there should be just over 12v at that
connection, yes. Just try not to get your meter leads caught up in the
moving belts, etc.
> Not sure how to test for continuity from the connector
> to the instrument cluster.
Follow the circuit in the Bentley, if it should be continuous from one
point to another, hook up your meter to those two points.
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