Note there's a different error code for no output:
47 Charging system voltage too loweven 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?
Someone PLEASE tell me there isn't a voltage regulator inside the Powertrain Control Module.
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
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
DeoxIT now makes a line of greases. On these types of connections use DeoxIT first then their grease. Great stuff.
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