I have a 2007 Alfa 159 2.4.
Have had all the usual earth problems under the bonnet and cleaned all those about a year ago and again now.
But my error i am having is the relay for the headlights is not always ticking on immediately. I replaced it but no difference. And when it does not click on in one click. The body computer loses earth somehow and my Alternator light comes on.
This is incorrect clearly as my battery voltage is 13.7V at idle and loaded up still remains about 13.5 at idle. At 1500 RPM its 14.1-14.2.
I am wondering what earths and where they are in the cabin for the body computer and the dash and switch assembly.
Can anyone help with some technical info or pics?
I am competent but dont wish to poke around where i dont need to.
Thanks in advance for any help you guys can give.