Can a bad IAC p1294 trip the PCM to get a p0601?

Question

Can a bad IAC p1294 cause the PCM to send a p0601 code?

Answer 1

P1294  target idle not reached

P0601 PCM internal controller failure

What leads to a P0601 is the PCM seeing a incorrect VIN number, or a replced PCM not having the correct VIN ,Can a bad IAC cause P0601,  It can't,  so no. You have 2 seperate issues, a IAC can be cause by vacuum leaks, from the intake to the PCV hose,