I have a 99 Chevy Silverado w/09379910 OS pcm.Can I full flash a different OS into it so I can use the COS#5? I have an extra 99-02 pcm just in case.I just don't remember if I could do that:unsure:.................Paul
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I have a 99 Chevy Silverado w/09379910 OS pcm.Can I full flash a different OS into it so I can use the COS#5? I have an extra 99-02 pcm just in case.I just don't remember if I could do that:unsure:.................Paul
You need to be running the 02 F Body OS before you can upgade to COS5. Once you have copied all of your tables over you can full flash that OS in, then upgrade to COS5.
Aahhh OK.Thank you:thumb_yello:.................Paul
OK I did a full flash and the truck does not start.I'm getting "U1000 Class 2 data link $1A Transfer Case Shift Control Module" Now what................Paul
What file did you flash into PCM? Was it a truck file or a F-body file?
Find a truck file that has OS 12212156 or 12202088 so you can use the COS's....
OK I'll try that,Thanks................Paul
Cool....:cheers:
Be sure to read this.
COS5:
showthread.php?t=2599
showthread.php?t=2270
Well its back again,Same problem.Any idea's?