Corsa coding error

Sounds like a coding issue. Did you recently replace any modules or have the software revised? Incompatible or incomplete coding can cause those symptoms and trigger the ECU to log a fault.

Is it possible the coding discrepancy alone is causing these errors, or could a hardware problem be making it worse? Trying to figure out the best way to diagnose this.

A hardware fault could theoretically contribute, but errors across multiple displays suggest the coding is the main problem. Get it checked at a workshop.

I took it to a technician, and they confirmed it was a coding problem. Cost 360€. The fault is fixed.