Brake Sender Unit

[Jim]

Thanks everyone for the information. I will start looking for one today

[Dr Terry]

The idea of the 2-pin switch is a bit like the temp light test on cars without a temp gauge. On those the temperature light comes on momentarily every time you start the car, just to check if the globe is working.

With the 2-pin pressure switch, if it's not plugged in then that same globe test will show no light.

Dr Terry