My cruise control was not working correctly properly (it was cutting off after surging) The car is a 1997 6 speed 540i with a production date of 12/96. I replaced the modulator under the hood that connects with cables to the throtle and just replaced the electronic module under the dash. As you know, in order to activate this system you need to push the cruise button on the dash first to turn on the system. Nothing happens now when you try to activate the sytem...the light on the dash does not light up indicating activation. Is there a fuse for this system and or a relay? If so, where are they located. Any suggestions on what to check/replace next? Thank you very much for your suggestions. Mike ps..209,000 miles and hoping to get 300,000.