What to turn off for the Flashing Battery light?
03-28-2007 | 11:50 PM
#11
Originally Posted by blake2kz71
when i swapped pcms the first time it didnt come on but then i swapped to another 02 pcm and it came on. i think its kinda like the crank relearn code some people get it and some dont. the reason for the battery light flashing is i think the 02 and up trucks came with a bigger alternator than 99-01 and that throws the code. no biggie.
03-29-2007 | 10:22 AM
#13
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I put in a spare PCM I had from my '05 sierra... anyhow, we've turned off the code for the F terminal but the battery still flashes. I'll double check this afternoon and do another crank relearn for grins.
03-29-2007 | 11:10 AM
#14
Originally Posted by LETHL_ZO6
I put in a spare PCM I had from my '05 sierra... anyhow, we've turned off the code for the F terminal but the battery still flashes. I'll double check this afternoon and do another crank relearn for grins.
03-29-2007 | 01:42 PM
#15
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Originally Posted by Tootall
is there any benefit to doing this? swapping the 00 for an 05?
03-29-2007 | 02:53 PM
#17
Maybe I'm wrong, but I was pretty sure you can not use a 03 or newer 1 meg pcm on an 02 or older 512k pcm engine/harness. The 1 meg pcm's have one of the connector on the pcm different also. 
03-29-2007 | 02:56 PM
#18
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Originally Posted by kbracing96
Maybe I'm wrong, but I was pretty sure you can not use a 03 or newer 1 meg pcm on an 02 or older 512k pcm engine/harness. The 1 meg pcm's have one of the connector on the pcm different also.
03-29-2007 | 03:08 PM
#19
I just when out and checked the 1 meg 03+ pcm will NOT plug into an older harness, one has a red connector and the other has a green connector and they are keyed different.
03-29-2007 | 03:11 PM
#20
Originally Posted by LETHL_ZO6
Not sure... everything is working fine using the '05 PCM other than the flashing battery.