If your car slows down big time like it did, STOP driving it!

This can be massive cogging or the literal event where a motor is shorting out and going south.

The likely cause that a bad motor took out your RSX is high considering you continued to drive it like that.

IF the 12 67 fault shows with a known good motor, your esc will require service and or replacement. We won't know until we see it in house. Silver lining here is that we offer a very favorable discount on a new one should you require that.

Sorry to hear about the issue, but next time if the car doesn't feel right. Stop driving it