Bonjour,

On my 928.5 S2 86, the coolant level alert is on constantly, even when I disconnect the blue-red wire coming from the tank sensor going to the alert box located under my left foot.
Warning light « ! » red is not lit, the lamps are good.
This is the yellow connector, terminal number 14.

I conclude that the circuit board has a problem.
I replaced an electronic component that seems to me to be controlling this light, but I had no positive results, the problem still exists.

I am therefore looking for electrical diagrams of the two cards of the alert box.
We don't have that at clubporsche928.fr and as electronics is not my job, I find it difficult to progress.

If you have any board schematics, I'm interested.
Thanks to help me, I can't search your site by myself because my English is too light.

Thank you.