1994 Plymouth Acclaim code 41

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clifto - 14 Mar 2007 05:42 GMT

41 Generator field not switching properly

Note there's a different error code for no output:

47 Charging system voltage too low

even though there's nothing charging the battery most of the time.
Intermittently it seems as though the battery is charging *almost* to
the point on the dashboard voltmeter where it usually sits; the
difference is small but noticeable, about 1/4 volt.

Before I declare the alternator dead, any experience with this that
says otherwise?

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clifto - 14 Mar 2007 16:51 GMT

> 41 Generator field not switching properly

Someone PLEASE tell me there isn't a voltage regulator inside the
Powertrain Control Module.

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Comboverfish - 14 Mar 2007 20:50 GMT

> > 41 Generator field not switching properly
>
[quoted text clipped - 3 lines]
> --
> Martians drive SUVs! <http://oregonmag.com/MarsWarm307.html>

Are you going to wait until you are satisfied that everyone has been
given ample opportunity to respond with a comforting negative, or can
I just disappoint you now and tell you that the PCM controls
alternator output?

Toyota MDT in MO

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clifto - 14 Mar 2007 22:46 GMT

>> Someone PLEASE tell me there isn't a voltage regulator inside the
>> Powertrain Control Module.
[quoted text clipped - 3 lines]
> I just disappoint you now and tell you that the PCM controls
> alternator output?

I picked a good time to read this article. :) The problem was nothing
more than bad connections at the alternator. DeOxit RULES!

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Scott Dorsey - 15 Mar 2007 14:37 GMT

>>> Someone PLEASE tell me there isn't a voltage regulator inside the
>>> Powertrain Control Module.
[quoted text clipped - 6 lines]
>I picked a good time to read this article. :) The problem was nothing
>more than bad connections at the alternator. DeOxit RULES!

You may want to also pack the connections with dielectric grease so that
they stay good.
--scott

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"C'est un Nagra. C'est suisse, et tres, tres precis."

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shaq - 15 Mar 2007 23:51 GMT

> >>> Someone PLEASE tell me there isn't a voltage regulator inside the
> >>> Powertrain Control Module.
[quoted text clipped - 13 lines]
> --
> "C'est un Nagra. C'est suisse, et tres, tres precis."

DeoxIT now makes a line of greases. On these types of connections use
DeoxIT first then their grease.
Great stuff.
http://store.caig.com/s.nl/sc.2/category.185/.f

Mike.

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