cruise control wiring

By CCS do you mean the cruise control switch on the steering column?

In a US diagram, it looks like this. Note that the (*1) bits (being the mode and distance-control switches and associated wiring) only exist in the dynamic-radar-cruise version.



As you can see, the on/off, res, set, and cancel switches all share the same ECC and CCS wires, by connecting different resistances between them, which are interpreted by the ECU, and the diagram doesn't show how many ohms. Easy to measure if you have a switch to play with.