Thank you very much for keeping us posted about the PCM diagnosis. On this vehicle, the electronic control unit should be located directly to the right of the accelerator pedal, behind a panel that's held on with 3 screws.
Once that panel is off, you should see two modules, one on top of the other. The bottom module should be your electronic control unit. Typically there's a small black tab that needs to be pressed down, then the white part of the connector rotates around to release from the control unit. If you need any further clarification on locating the unit or removing the connectors, please upload some photos of the driver side footwell of your vehicle and I should be able to point you in the right direction.
I've also attached several pages of notes regarding the control unit replacement. It's possible you may need to use a GDS (Global Diagnostic System) scanner in order to reprogram the unit unless it was pre-programmed when you purchased it.
I hope this helps! Wendy W.
Images (Click to enlarge)
Wednesday, March 30th, 2022 AT 5:48 AM