Summer finaly arrived so I take out the 964, model 1993.

Everything work fine exept the speedo did not work. I know that it got is signal from ABS sensor, I think the left front. But I got no ABS warning light. So what could have stop working?

 

Does the odometer work or is it both the speed and mileage that's not working?

 

Nothing is working in the speedo. Totaly dead.

 

There is a relay looking thing that changes the signal from the ABS sensor to the speedometer. Its in the trunk in the fuse box. I can't remember exactly what number it is bjt you can probably search here and find it. I pulled mine out and cleaned it when I was having speeding problems and it seems to have fixed it. I also cleaned the ABS sensors at the hubs.

 

http://forums.pelicanparts.com/porsc...bs-sensor.html

That might help you a little. I'm not saying this is your problem but it could be.

 

You may want to take a look at this link. https://rennlist.com/forums/964-foru...s-working.html. This was my problem a while back.

 

clean the contacts on the plug in the back of the speedo.