PWM cooling fan(s) control using ECM

[andrewb70]

Originally Posted by mikentosh

....

...Pin 58 is a ground PWM signal correct?

That part I know to be correct, but I can't help with anything else.

Andrew

[mikentosh]

Originally Posted by andrewb70

That part I know to be correct, but I can't help with anything else.

Andrew

Thanks. I looked at it again on the weekend and realized that I was monitoring it while it was hooked up to the C6 fan relay. Once I disconnected the fan module I see it taking 12V to ground when key is on, regardless of fan state in the ECU. Interestingly I also flashed the ECU back to discrete fans and am observing the same situation, so I'm going to give up for now and wait until I've switched over to the Holley Dominator setup.

[andrewb70]

Originally Posted by mikentosh

...so I'm going to give up for now and wait until I've switched over to the Holley Dominator setup.

Now that, I can help you with!

Andrew

[mikentosh]

Originally Posted by andrewb70

Now that, I can help you with!

Andrew

Just as a followup, we did the switch to the Dominator setup and, as expected, its working great!

[andrewb70]

Originally Posted by mikentosh

Just as a followup, we did the switch to the Dominator setup and, as expected, its working great!

Excellent. The set-up on either the Dominator or the HP is pretty straightforward.

Andrew