My 400 has now gone down for the third summer in a row with only 1300 kms on it. A connection the first time, one month, to do with the ecm motor driver circuit, shift motor was replaced. second time one month later,angle sensor replaced. 6 months later contamination in connection at the ecm. Now flashing code 5 (faulty angle sensor, checked all connnections and they are good. this is getting annoying, how do get it to stay shifting for more than a month or so? family machine, not driven hard.

 

First thing to do is thoroughly clean all the electrical connectors and apply dielectric grease to all electrical connections.