Where is this diode? Options

[andreic]

Hello,

I've been trying to diagnose why the hand brake switch does not trigger my flashing warning light in the panel on my 1972 1.7L 914. Based on my debugging the trouble seems to be with the diode that is between the flasher lights in the panel, and the switch at the hand brake. (Left diode #41 on the attached diagram.)

But for the life of me I cannot figure out where this diode is physically located. I took out the cluster gauge, and looked at the big clump of wires, and all I can see is the other diode, on the right in the diagram, that goes from the voltage indicator to the warning lights. That is there, and works fine. But where is the other one?

Thanks,
Andrei.

[tmc914]

When I ran into a problem of my emergency brake light not working properly I decided to replace the wire from the gauge cluster to the switch. Took the steering wheel off to get to the gauge cluster easier. Took the drivers seat out, the back panel behind the drivers seat and the carpet off over the center console on the floor. All was needed to run a new wire. After all that and just before I started to run a new wire I tested once again. Sometimes the ground worked for the switch and sometimes it didn't. After looking at the emergency brake switch closely, I noticed it was loosing it's contact when I put it back into place. I forget exactly but I think I bent the switch a little bit to make better contact and placed it back into it's hole. It has worked great ever since. If all else fails, the wire from switch to gauge can be replaced but hopefully it is just at the switch. My brake reservoir switch had an issue also that was giving me fits but it was just a faulty ground and an easy fix (did not have to replace the switch). Those two wires come together and the combination of two issues made it very difficult to troubleshoot. Hope this helps.