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hey Eric, another question for you on my 97 malibu 3.1 that I just put a new engine in and a week later my battery light came on, had two alternators checked and passed more than once. Do not have continuity between the ALT/charging wire and the battery terminal, checked all fuses with a continuity checker fuse panel in both doors and under the hood, had a RDO/BATT 10 amp fuse blown and replaced it with no change, do you know anything about GM’s BFC/PCM computers, also just put in a new cluster with engine swap and checked the old one and it does the samething. I dont know exactly where the charging wire goes to connect to the battery.PCM??BFC?? update…disconnected the charging wire and ran a wire direct from the alt to batt and started charging hooked up the charging wire along with the direct wire and stopped charging removed the charging wire and went direct again and not charging with the direct wire now, checked all wires by tugging on them with no change
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This is a known issue.
Read this:
http://econtent.autozone.com:24999/znetcs/psb/en_US/2/0/45/199.pdfAs for the most recent issue, you may also have blown the fuse again and the fusible link.
In the red wire going from the alternator to the starter there is fuseable link.
When the fusible link burns, you don’t have continuity.
Replace the fusible link or the cable.Page 2 of this link shows how to test the cable/fusible link:
http://troubleshootmyvehicle.com/gm/3.1L-3.4L/how-to-test-the-alternator-1got it thanks, a connector I already replaced at the starter (charging wire) was hanging on by a couple wires.
that only worked for a short time, still have good continuity after changing that connector but not charging again and my alarm wont set for some reason, the key fob works but my alarm wont go off???
looks like PCM, circuit 225 Pin B red wire Generator L-Terminal, with engine running should be getting B+ Value which I have read is the Battery + terminal, which is at 12.5 and circuit 225 Pin B is only at 10.5 volts plugged in running or unplugged running, alarm is working red blinking light just burned out after 20 years. I actually charge off idle, had the alternator tested 4 times and passed all times.
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