4 ms·
If it's a DC pump the alarm probably just turns on a relay that swaps the input polarity of the motor.
by seany 6y ago
If it's a DC pump the alarm probably just turns on a relay that swaps the input polarity of the motor.
- spiritplumber 6y agoYep. It comes with a relay and I wired it to another DPDT relay. It's supposed to go on the carn horn terminal instead. I love how older vehicles have really simple wiring.