Battery light.
Nov 12, 2006 | 08:42 PM
#1
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From: Spring, Texas
Battery light.
Just switched to an 02 PCM and now my alternator is reading a little high (13.8-9 or so) My battery light flicks on and off now. WHY?? 
If its not one thing, its the other. 
If its not one thing, its the other.
Nov 12, 2006 | 09:32 PM
#2
01+ PCM's have an extra wire for the alternator that your 00 Alt doesn't have. If you scan your DTC's you'll see a code for Generator F terminal.....find the code in your tune and disable it. Those voltages are fine. Once you disable the code it will shut off the battery light.
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