Please keep us up to date. My whole pod has issues...
As you can see I solved the problem with the instrument (gauges) lights.
You will need the Papayam color coded wiring schematic for your car AND also the Factory Manual because one complement the other. For one thing the Papayam material provides colors for the wires which the Manual does not.
Also the manual has diagrams that help a little bit more in some cases and provide the steps to do the dismantling and re-installation. But the Papayam schematic is invaluable.
Removing the Monopod is scary and a bear. I cleaned all the connections by removing the bezel (a *****), then unscrewing the instrument from the pod and pulling it towards the steering wheel. This is enough to disconnect the huge connectors in the back and cleaning them. A horrible bunch of cables back there and all those contacts that can go kaput.
I also resolved the problems I had with the rest of the "interior lights" as they are called in the Alfa manual. Namely the engine compartment light, trunk light, glove compartment light and the courtesy lights.
99% of them resolved with new bulbs and restoring the grounds.
The courtesy lights failure was due to the famous N-10 Relay (Sipea 0679) , 3rd position in the top row of relays at the fuse box.
The relay was shot. Apparently there are no new substitutes available, only used ones and expensive.
I found here at the BB an idea to put a jumper cable to eliminate the relay, which normally provides the function of a timer. The jumper goes from the left vertical slit to the top horizontal slit where the relay used to be. in other words, from the P to the L slots (see last photo.)
Now the courtesy lights work normally but turn off immediately after closing the door. I can still turn them on manually if desired or keep them off full time.
Some members say that the courtesy lights can be accidentally turned on by inadvertently pushing the switch with the knee or leg, causing a battery drain if not noticed. This is easily avoided by not connecting the red/black wire to the lamp assembly.
Of course, you lose the "manual turn on" capability. Then it will be On on opening the doors or Off all the time.
A friend asked me why I was fiddling with all these lights, since they are not essential and require maintenance. In my view, why not, they are part of the car, also these cars are for the most part a hobby.
Below are photos of the jumper to replace the Sipea 0679 relay and of what's inside the relay. All of that complication just to keep the footwell lights on for 20 seconds after you close the door???!!!