L3901 e20 code

[Richtrac1]

I have a L3901 HTS with a e20 code, it keeps blowing the main ECU (+IG) 5amp only when I press peddle, I checked the wiring and have not found anything damaged .

 

[mdhughes]

E-20 = Communication trouble

 

[GreensvilleJay]

Perhaps switch on pedal is internally shorting to ground ?
Would need to see wiring diagram but 'blowing fuse when pedal moved' should be real easy to troubleshoot.

 

[lugbolt]

the switch is either falling apart and shorting itself very likely. Check the hst switch, if it's coming apart it'll be pretty obvious. I've seen it happen a few times.

 

[Richtrac1]

the local dealer told me it sound like I had a short somewhere. What I found was the wire harness near the left side next to the exhaust was questionable. it had heat damage. I pull it apart and found a few wires that were spliced as you can see in the picture wrapped in blue tape. and had some damage to them. I was some what confused with what I found being I bought the tractor new and haven't had much service done to it. the wire that is apart was me starting to resplice the wires ,
so far it is starting and running great!!the true test will be this weekend. I have a lot of grass cutting to do.