06 volvo vnl cruise control probelm

Ok, I will try this again. Its a 06 Volvo vnl 430 d12 engine 10 speed fuller trans, and I have a problem with my cruise control not engaging while the truck is moving. When im not moving I can engage the pto/rpm and I can raise up and down the rpms while not moving. The clutch and the brake switches are fine and are working tried lifting the pedals as it was mentioned in other posts, the speed sensor has been replaced. My speedometer, and my engine brake are working fine. The cruise control will not engage while the truck is moving, im puzzeled. I heard somebody mention in different posts about some kind of a cruise control air switch near the clutch pedal but im not getting any replies, and Im not sure where its at. I have been dealing with this problem for a while now and no one seems to know the problem, and I dont want to get ripped off by the mechanic again and the dealer will probably charge me a lot. Any help would be greatly appreciated. Thanks.

 

It has not worked since i had the truck so that could be the problem. How do i check the settings or how do u change the settings.

 

One fault code for egr valve i cant remember which and i will have to see what it says exactly. The engine break works only on one setting but i thought it could be the swotch on the dash. What r your thoughts and suggestions. Thanks

 

Ok i will try that in a min

 

That start up cycle didnt work. I will probably have to see and check. Just wanted to find out if it can be a simple problem so i can fix it.