Hondata

I'm sure this has been covered before. If I have a 12v arming switch on pin e22 does pin e21 output ground to pin 85 on my relay when my parameters have been met or does e22 need to be switched to ground to arm? I'm confused about the nitrous wiring diagram on the hondata website. Please respond soon bc I need to wire the car tomarrow morning to get tuned tomar night. Please no negative responds I just don't want to ruin my kpro. Thanks in advance-chip

E22 needs to be grounded to arm it then the ECU will ground the E21 output. If wired exactly is the diagram shows it should work without any issues.