7 way plug tester
I have 2 trailer connections on my truck....the one in the bed quit sending power to the brakes. The one in the bumper works fine. So I bought a tester at Northern Tool and with my wife's help we tr...
Forum Discussion
I have this 7-way TRAILER SAFETY LIGHT tester purchased from AMAZON.
I too cannot see the correct small LED light come ON by pushing the brake pedal on my truck.
It turns out my OEM FORD BRAKE CONTROLLER is disabled by the truck computer system when the truck is setting still. Pushing in on the BRAKE foot pedal does not send DC VOLTAGE to the trailer BRAKE MAGNETS unless the truck is going down the road at 10MPH.
The only way I can get my BRAKE test LED LIGHT to work when testing the BRAKE OPERATION is to use the BRAKE CONTROLLER SLIDE SWITCH instead of pushing in on the truck BRAKE PEDAL.
Also my Truck ignition key has to be ON to do any of the safety lights tests.
Maybe your model truck is doing the same thing to your tester????
Roy Ken
I too cannot see the correct small LED light come ON by pushing the brake pedal on my truck.
It turns out my OEM FORD BRAKE CONTROLLER is disabled by the truck computer system when the truck is setting still. Pushing in on the BRAKE foot pedal does not send DC VOLTAGE to the trailer BRAKE MAGNETS unless the truck is going down the road at 10MPH.
The only way I can get my BRAKE test LED LIGHT to work when testing the BRAKE OPERATION is to use the BRAKE CONTROLLER SLIDE SWITCH instead of pushing in on the truck BRAKE PEDAL.
Also my Truck ignition key has to be ON to do any of the safety lights tests.
Maybe your model truck is doing the same thing to your tester????
Roy Ken
