Help - My M139 has electronic cancer

Jimbobtx3

New Member
Messages
6
Hi All.
Things aren't looking good for my Maserati. I've had electrical gremlins for 8months now and they have grown like a cancer. The more I probe, the more goes wrong.
It all started with the centre screen on the dash flashing up every error under the sun. They grew, one by one until every error was displayed. air bag, suspension, parking, transmission, you name it. Any probe at the OBD port provided zero logged errors. The flashing up errors appeared to be fake. Car operated fine. Then things slowly just kept going downhill.
Currently the dash is dead. No operating instruments, no lights, nothing. Except the green park light on the dash stays lit 24hrs, the interior cooling fan stays running 24hrs on the last setting before switching off the car. Occasionally the hazards come on by themselves and won't turn off unless I disconnect the battery. The car sprays the windscreen washer randomly. Like everytime you try start the car and everytime you turn off the car or reconnect the battery.. Car will not run. It did fire once tonight and I panicked and switched off. Won't run anymore.

Obviously I have disconnected the battery now. I am suspect on the fuse panel under the dash. Without much knowledge it seems central to the electronic systems and CAN bus.

I'm likely going to have to take it in to a shop but I feel they will struggle to diagnose this. Perhaps I'm wrong.
 

Arvid

Member
Messages
158
Could be either fuse panel or the body computer just behind it. According to part diagrams they are mounted back to back under the dash. Bad earth connection,water ingress or loose connections would be my first inspection.