M42 For LED Control Not Working

[Eth7an]

I have been reading up on the GCode necessary to convert one of my Pwm fan headers into a dimmable LED control. To do this I have disabled the fan using M106 P2 I-1 and then tried to use the M42 Command to activate that pin. I still have the header connected to a fan while I try to get it working, but the command does nothing to the fan and returns an error:

If anybody knows what Ive done wrong, that would be a ton of help!

Thanks for the help, Ethan

[Eth7an]

@eth7an If it helps, I'm using a DUET 2 Ethernet on the latest firmware version. I have the fan connected to the Fan header 2 as well, even though I have tried all of them.

[Eth7an]

I have also tried these, however none of them have any effect on my connected fan

[dc42]

Fan 2 output is logical pin 22, not 2. Logical pin 2 is heater 2 output.

[Eth7an]

Thank you, that worked!