Hello. got a Clark TMX20 sit down 36 volt forklift. 
Serial #TMX250-0195-9597KF 
Cuts out drive and throws a code -31. Can anyone help or have a description of the code. Is it a voltage error? 
I managed to clear battery corrosion built up between frame and battery case. It worked for about a day, Dont think that may have been the cause.
    
    
    
 
            This is ONLY to be used to report flooding, spam, advertising and problematic (harassing, abusive or crude) posts.