OBDII// report P0505 error code on 1996 Dodge Ram 1500

I have been changing all the parts and cleaning, but my car still doesn't work. It's not power on

Asked by for the 1996 Dodge Ram 1500
Potential causes of an P0505 code include:

IAC motor connector is damaged (check connector and pins for damage, and moisture)
One or more IAC circuits open or shorted to ground
One or more IAC circuits are shorted to voltage
IAC has failed
PCM has failed
Thank you