engine brake and cruise not working

Is there a hot wire that goes to the smart wheel

 

Have to agree with Captain Krunch. The clutch pedal switch will disable the cruise and jake.

 

If all the components of the brake system aren't working properly (for instance the brake pedal hanging up and not returning to its' released position) it will disable the engine brake and cruise.

 

i am having this very same issue already replaced the TPS what has happened is my engine brake now has a 5-6 second delay before engaging i have no cruise at road speed but have high idle comtrol when parked im still searching

 

Where exactly is the smart wheel control module located on a '97 KW W900L??

 

1999 KW W900 Smart wheel
My engine brake is not working?

 

Would love some advice on what to do, this same problem is happening to me. It seems to have to do with my clutch. I have to hold it up with my foot for it to engage but as soon as I let it go and hit the tiniest of bumps cruise and jake turn off. Please help. Thank you