Re: Torsion Leveling

Posted by HH56 On 2013/10/2 22:24:57

If the switch is off, there would only be voltage on one green wire which would be the supply from the brake light switch or, in your case, the two prong kit or places unknown.

The regular 3 prong brake switch has a common and a normally open and a normally closed contact. The voltage goes to the common. When brakes are relaxed, it will be passed out the normally closed contact to the level circuit. When brakes are applied, the contacts switch and voltage is disconnected from leveler and applied to lights.

To use a two prong switch, that function has to be duplicated. The kit has a relay for the function. The question is how the kit does the switching. Some kits have the brake switch only operate the relay. In that situation the relay totally duplicates the old switch with the relay's normally open and normally closed contacts doing the work. Other kits have the brake switch operate both the relay and at the same time operate the brake lights. The brake lights are turned on by the brake switch directly and the relay activates at the same time to disconnect the leveler.

Without knowing what you have it is hard to say if the brake switch or the relay is at fault keeping the lights on -- or is there a miswire or short somewhere and the leveler and lights are both on the same terminal.