[Ur 2 Slow 4 J]

ive tried to troubleshoot the cruise control system. i have the cruise control hooked up,( light lights up on dash and the tach ect)but it wont engage. i found a throttle cable and it probably hooks up to the cruise control, but how. ive searched online for pics of what it looks like but no dice. please help me ASAP i dont like broke shit on my car