truck won't start reflash failed

[camiauto]

Help! read colorado, licence pcm start flashing failed no more communication whit pcm :bawl:

[Chevy366]

Try pulling negative bat cable , wait 15 min and try again .
Make sure if non-factory radio pull fuse .

[camiauto]

Already try but no success Thanks

[camiauto]

A full reflash fixe the problem

[Chevy366]

Wonder why cal only failed then ?
Glad it is working again for you .

[hondarider552]

with a full reflash IIRC you need to do a cam relearn.. but not with a cal flash.