hacksaw1340
Active member
So I am still confused about trailer brakes. I've read about all I can read and have a decent understanding but I still don't "get it" ..
My buddy has a used trailer he picked up and the controller in my truck or his, is showing no trailer.
With no truck connected and stand alone trailer and good battery voltage
Checking the brakes. I put my volt meter on ohms and read from the blue wire (pin 2 of the connector) to ground (Pin 1 of the connector) 1.6 ohms. Is the blue wire supposed to show open?
Testing Brake Magnet Resistance
Further testing can be done with an ohmmeter, using the ohmmeter function on the multimeter check the resistance between the brake magnet wires. If the resistance is not within the specified range (see specifications below) then the magnet will need to be replaced.
Well.. I dont know how they are wired, parallel-series or what. Just thinking, I should see more than 4 ohms, and possible up to 16.
Brake Magnet Resistance Specifications
10 and 12 Inch Brake Magnets 7 Inch Brake Magnets
3.0-3.8 Ohms 3.8-4.0 Ohms
Well.. now I am really lost.. I measured my trailer and received the same ohm reading. about 1.6
My buddy has a used trailer he picked up and the controller in my truck or his, is showing no trailer.
With no truck connected and stand alone trailer and good battery voltage
Checking the brakes. I put my volt meter on ohms and read from the blue wire (pin 2 of the connector) to ground (Pin 1 of the connector) 1.6 ohms. Is the blue wire supposed to show open?
Testing Brake Magnet Resistance
Further testing can be done with an ohmmeter, using the ohmmeter function on the multimeter check the resistance between the brake magnet wires. If the resistance is not within the specified range (see specifications below) then the magnet will need to be replaced.
Well.. I dont know how they are wired, parallel-series or what. Just thinking, I should see more than 4 ohms, and possible up to 16.
Brake Magnet Resistance Specifications
10 and 12 Inch Brake Magnets 7 Inch Brake Magnets
3.0-3.8 Ohms 3.8-4.0 Ohms
Well.. now I am really lost.. I measured my trailer and received the same ohm reading. about 1.6