sprucegoose Posted January 26, 2004 Report Share Posted January 26, 2004 Ok, I'm trying to figure out what happened here. My 93 Eldo always ran, started, and had a consistant 14V reading on the message display and then... One day the message dispays battery no charge and I have this P110 code. The lights and other systems starting failing of course, but fortunately my wife was able to limp the care home a couple of miles. I check the codes, clear them, and I get the p110 repeating active with only 11V showing. I checked the battery with a specific gravity gauge, and sure enough all the cells are almost dead, so I throw it on the charger. To my surprise, after almost 12 hrs., it doesn't seem to take a charge. It is a top of the line 75 Gold series Napa battery, about 22 mo. old! So next I swapped in my battery out of my 98 Tahoe, (which is almost new), and again cleared the codes. Started the Eldo, and still getting the P110 error code with 12V showing in the message center. OK, so that tells me it has to be the darn alternator right? I was going to do a voltage test on the system with no load and then with load per the service manual, but my voltmeter isn't working. Have to get a new one. So would a alterator that was going out take a battery down with it, and would it render it useless? Im thinking that if the battery was the first thing to go, it could probably overwork the alternator causing it to fail pre-maturely. Does that make sense? At any rate, it looks like I'll be buying both at this point... '09 Cadillac CTS-4 3.6 direct injection, 128 K mi. '15 Chevy Tahoe LTZ, 5.3i V8, 125 K mi '70 Firebird Formula 400, Bored+.04, RAIII heads, M21 4spd., in-process restoration! Link to comment Share on other sites More sharing options...
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