Ground to Control Logic

Trying to verify PMU settings. I’m trying to configure the PMU to act as my relays, the other modules in the car toggle the relays by switching ground. Such as the horn. Is Switch - Active Low 10K pullup the way to go? I just need the PMU to essentially “short to ground” to act as a trigger.

Yes 10k pull up with active low is correct.

When the PMU see’s a ground path on that input pin it will become “true”