Why does the ecm transmission fuse keep blowing in a 2010 Chevy Cobalt?
You more than likely have a shorted wiring harness somewhere in the wiring to the transmission shift solenoids, this is a problem that is difficult for a professional to track down. Pull the harness loose and look at it, examine for wires rubbed through. You can try unplugging the harness from the transmission and see if the short goes away, if it does the shift solenoids are the problem.
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