PWM fans with P59 ecu or "EV Fan Type" setting

[bobcratchet555]

I have the EV clutch now run by PWM with the RPM feedback on my 97 383 van. It is unlikely the code will run PWM electrics correctly. The PWM code is looking is looking for a fan RPM input signal in addition to supplying the clutch with the PWM signal. As a clutch fan control it works great.

question is tho what frequency is the PWM output, and can you use one of the tables to essentially disable the feedback loop? specifically the "PWM output driver delta" which is present at least in the 05 operating system with the XDF i am using. In theory if you zero out this table and turn off the fan diagnostics, would it just use the duty cycles from the "Fan PWM %"?