PWM cooling fan(s) control using ECM

[andrewb70]

Originally Posted by PTAddict

Does anyone know what the difference between PWM electrical and PWM EV fan control signals in a GM ECU application? Is one +12V and the other a modulated ground? This latest CTS-V fan apparently is configured as PWM EV, and I'm trying to figure out how to emulate that with a Motec ECU ...

Thanks for any help.

Scott

Scott,

Have you tried using PWM- like we have done with the C6 fan controllers?

Andrew