355 Speedo failed and suspension light on

Just order and swap the sender. It is a common problem...every Ferrari I have owned I have had to replace it at some point. NEVER replaced one on any other brand car though...seems to be strictly a Ferrari thing.

If it was the connection on the back of the speedometer, then it would not trip the suspension light. The suspension light in combination with no speedometer working, means it is not getting a speed signal.

 

suspension fail is for speedo fail

SURE because the suspension ecu can´t read the speed

2 months ago I´ve fixed one 355 just of the same problem, remplace the speedometer sensor and after all is perfect, suspension and speedometer

 

Does that thing somehow also drive the odometer as well? Or is that from a different input?

 

Same drive for speedo and odo.
Usually same two faults;
1. Speed sensor
2. Front vertical lift sensor (usually accompanied by a blown fuse)