- Joined
- Sep 10, 2012
- Messages
- 223
- Location
- Portugal
I had ghosts in my MV F4 that were very similar to this, and it drove me and the mechs CRAZY trying to figure out WTH was going on. In the end, they replaced the wiring harness and *poof* problem solved. While there was no apparent problem with it, the suspicious was that it was compromised such that there was an intermittent short somewhere within. The ghost was indeed exorcised with a brand new harness.
CAN BUS trash caused by the harness... quite common, should I say.
For example, the known problem with the left commuter (blinkers and horn), it's source is the harness that causes errors on the CAN Bus. And the trash that is sent to the CAN Bus (bad data), misled the ECU and think that the switch is failed.
Hope I have explained it right.