Yes, it does. But over 24 years of usage it will get dirty and stuff.

So, i forgot to update u guys. I went to the scrapyard and was going to see if i could find a power stage, but with no luck. then i took the fan out of the car and saw that the fan and motor was full of dust and dirt. I cleaned the elmotor with electroclean a couple times, and i took some sandig pap...

Thanks for the answer, i will do as you describe here. It can also be as you say, that not all the codes are active.
Thank you for the guidance!

the ignition switch is not bad, its working like it should.

Tha main problem for me now is that the fan is running only at slow speed, and it only blows a little heat.

hello, i have a 95’ 850, and the ecc doesnt work properly, sometimes it comes back on and everything is normal, but thats like 1 out of 20 times..

I have read out these codes, from the B1 terminal: 135-143-417-418

Anyone with the same problem, how to solve it etc.

Thanks!