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Alternator Issue after LED install?
So you don't think the alternator is the issue? What exactly is the P1637 code for "Generator L terminal circuit" ?- Z71 Dude55
- Post #8
- Forum: Engine & Drivetrain
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Alternator Issue after LED install?
Ok, yeah I went ahead and scanned it this evening and received a P1637 code for "Generator L terminal circuit" However no check engine that might come with a faulty PCM. I also checked all connections and grounds and they were tight. So I think I will order a new alternator and im sure youre...- Z71 Dude55
- Post #6
- Forum: Engine & Drivetrain
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Alternator Issue after LED install?
I also tried removing the light connections from the battery and running it like normal but got the same result, just draining the battery, no charge while driving.- Z71 Dude55
- Post #4
- Forum: Engine & Drivetrain
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Alternator Issue after LED install?
Sorry, One 52 inch light bar, one 22 inch light bar, and two 4 inch pods. They are all on relays with 20amp fuses and have separate switches. I didn't touch anything else, just connected my lights via the relay harness + switches all to the battery. I'm not sure if my alternator is 105amp or if...- Z71 Dude55
- Post #3
- Forum: Engine & Drivetrain
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Alternator Issue after LED install?
I have an 03 Tahoe Z71 and just recently installed a few LED lights, 4 in total. I ran two of them on one harness, and the other two on separate harnesses for a total of 3 harnesses. I ran all three to the battery and after driving for about 30 minutes, the "Battery not charging" and "service...- Z71 Dude55
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- Replies: 9
- Forum: Engine & Drivetrain
