D2 S8 Cruise Control Module Location?

[HPsauce]

Originally Posted by donp38

Had it driving along with OBD connected.
Can see the switch switching every time but nothing actually happening re CC working..
??

It is actually switched on? The slider on the stalk...... (which is also the "increase speed" function)

Could be the slider switch is faulty, depending which switch signals you're seeing. The button on the end is only for "set" and "reduce speed" functions.

And you don't need to be driving to check the switch operation, at least with full VCDS as your OBD tool.

[donp38]

Many thanks both.
I will check and come back to you.
:-)

[ainarssems]

Do you have any error codes? Anything to do with pedals, gearbox, throttle body, missfires or MAF will stop CC from working

[donp38]

Hi All.
So checked with VCDS that all was 'switched on'.
Then watched as I used the switch on stalk.
All good.
However, when you watch closely, there was a 0000 signal between the switching. This could cause the CC to deactivate?

Sprayed contact cleaner in the stalk switch at the same time as switching and pressing all functions...

back to VCDS and did the same switching....hey..well you would not believe....now clean switching with no 0000 signal in between switching.

Road test next...all well..working perfectly.
Many thanks to all.
Cheers.

[tonupkid]

There is a known issue with the D2 cruise control. The solution is to work the cruise switch vigorously.
The thinking here is that sometimes with underuse the electrical contacts become corroded and switching it on and off repeated;y cleans off the corrosion.
Hopefully a simple no-cost fix.