Originally Posted by lorcaweb
Our brakes on the tag axel do not function. The contoller seems to have gone.....
If you are sure the controller is toast, just replace it with any conventional controller.
Have you run an operations test under actual braking conditions?
The controller is a "pendulum" type, that requires both electric AND decelleration indications to send an electric signal to the brake tag.
Make sure the controller is is not sending a signal before you replace it.
The controller is located at the base of the steering stalk - and not easy to get to - the output wires on mine are black and white. The wires are routed through the engine bay, just to the driver's side of the dog house, on their way rearward to the tag brakes. I would tie into the output wires in the vicinity of the controller with a voltmeter, and then take the 345 for a test ride and observe the controller output under various braking scenarios. This is a two person test - one to drive, and one to watch the voltmeter.
There is a control knob on the controller to adjust voltage to the tags - again, not easy to find, nor to get to.