I had a similar problem with my GLHT. I tested all of the wiring between the LM, PM, and alternator. I tested the alternator both in the car (by full-fielding it), and at the parts store. I measured the outputs from the LM to the PM and they were within spec. It turned out to be that the voltage regulator in the PM failed open...most of the time. I would still get occasional shots of juice, but that eventually tapered off to none at which point the problem was clearly evident. It's somewhat annoying to have to buy an entire PM for a $5 voltage regulator.
> -----Original Message----- > From: > [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] > om] On Behalf Of [EMAIL PROTECTED] > Sent: Tuesday, April 08, 2008 1:34 PM > To: shelbydodge@imagilist.com > Subject: SD> Charging Problem > > More Info on the problem. I sent this to Stefan but did not > repost to the list. > Voltage Readings: > > Car Off: 12.5 - 12.7 VDC > Cold Start: 13.7 - 14.2 VDC > After one or two minutes when fast idle drops it hangs around > 13.3 for 10 seconds or so then starts dropping. > Turn on headlights and voltage drops way down to 11.5 .... > > If I remember correctly the Power Module (PM) is handling the > request for charge. However, I think it is actually coming > from the Logic Module (LM) and the PM is serving as the > relaying handler. > Can anyone confirm? Once upon a time someone had the LM pin > outs posted. I used to have a disassembly and port map but > was all lost when my PC crashed a few years back. > Thanks, > Mike > > > > > > > **************Planning your summer road trip? Check out AOL > Travel Guides. > > (http://travel.aol.com/travel-guide/united-states?ncid=aoltrv0 > 0030000000016) > ___________REMOVE-FOOTER-WHEN-REPLYING_________ > ShelbyDodge mailing list > ShelbyDodge@imagilist.com > http://www.imagilist.com/mailman/listinfo/shelbydodge > ___________REMOVE-FOOTER-WHEN-REPLYING_________ ShelbyDodge mailing list ShelbyDodge@imagilist.com http://www.imagilist.com/mailman/listinfo/shelbydodge
