Steve Addy
Top Post Dawg
BIgAndy is right, I was wrong, I just pulled out the Mk3 Bentley and only three of the four wires connecting to the switch come from the ECU, the black wire does indeed rely on power from S14. I had originally thought they all connected to the ECU. The connection to the switch is made from S14 that comes from D/11 and goes to a junction block where other connections requiring switched ignition power also connect. D/9 is the same, takes power from S14 and distributes it elsewhere.
I went and looked at my B4 wiring harness and the power connection for the cruise is shown in this old photo I did for someone else who was doing a Mk2 TDI conversion. The black wire with the green connector marked "D11" is the power for the cruise stalk. That green connector needs to be plugged into a green junction block above the fuse / relay panel. Find the one that has the wire coming from D11 and that will be it. If you've done that and still have no power check continuity between the junction block connector and the cruise stalk connector.
If this is all old news for you then I would check the green junction block for 12v with ign switch on. If that's not present then pull and reinstall the fuse or replace it and check again. When you get power to the junction block you should have power to the cruise stalk.
Steve
I went and looked at my B4 wiring harness and the power connection for the cruise is shown in this old photo I did for someone else who was doing a Mk2 TDI conversion. The black wire with the green connector marked "D11" is the power for the cruise stalk. That green connector needs to be plugged into a green junction block above the fuse / relay panel. Find the one that has the wire coming from D11 and that will be it. If you've done that and still have no power check continuity between the junction block connector and the cruise stalk connector.
If this is all old news for you then I would check the green junction block for 12v with ign switch on. If that's not present then pull and reinstall the fuse or replace it and check again. When you get power to the junction block you should have power to the cruise stalk.
Steve