I'm a old dummy who jumped my tractor off and put pos on neg, Problems!

[edward Gazzier]

I accidently jumped my L3301 off but put battery cables on backwards, I changed one of the 50a [slow burn] fuses out and it cranks now, i also changed a smaller one out that is in the smaller box where your left knee cap would be, however my odometer reading doesn't come on, i'm not sure if the regen system is working, I would appreciate any help a old guy could get.

 

[ayak]

It’s quite possible the ECU board has sustained some damage. And its replacement would at some point involve a dealer using the needed diag software to complete the repair.
sorry for your troubles.

 

[BBFarmer]

Brother, unfortunately i would think all you could do is check your fuses and hope others are still blown. Otherwise computer damage would be likely.

This is all too common in our automotive world. Often does kill ecms and such.

Sometimes you get lucky and will find a fuse bar smoked deep inside the fuse/relay boxes (we often find this on toyota/lexus models) And i wouldn't even know if tractor fuse boxes have those or not. Something like this



Hopefully some of the ole hands will soon chime in and offer the correct advice....... @North Idaho Wolfman

 

[edward Gazzier]

Thanks folks, i took every fuse out and replaced them to keep from going to shop, one 5 amp was bad, now i have 3 codes to run down, Thanks guys!

No man ever steps in the same river twice, for it's not the same river and he's not the same man.

 

[RCW]

Thanks folks, i took every fuse out and replaced them to keep from going to shop, one 5 amp was bad, now i have 3 codes to run down, Thanks guys!

No man ever steps in the same river twice, for it's not the same river and he's not the same man.

@edward Gazzier - - We've all done foolish stuff. Welcome to the club.

If we say we've never made a mistake, we're either lying or we don't anything for ourselves......

As simple as it seems, I posted a thread about best practices for replacing batteries.

Battery Replacement - - Best Practices?

Just to be clear, this is probably a foolish question and not a tutorial. Probably derived from recent cold snap. Recent years several folks have fried one or more electronic control modules (ECM) in their tractors just by replacing batteries. Some tractors have 3 or 4 ECM? Heard similar...

www.orangetractortalks.com

Some guys have fried their ECM/ECU's on their tractors replacing batteries or jump starting them. Heard similar horror stories about cars and trucks.

I've replaced countless batteries, but this new "technology" stuff has me spooked.

 

[GreensvilleJay]

man I feel for you, downloaded the WSM and there's THREE 'computers' and 2-3 CANbus peripherals so it could get expensive.
update?
1st, does the engine start and run fine, as before ?
2nd, does the dash work OK, other than the odometer ?
3rd, anything else NOT working ?

always best to put on paper.....

 

[North Idaho Wolfman]

Thanks folks, i took every fuse out and replaced them to keep from going to shop, one 5 amp was bad, now i have 3 codes to run down, Thanks guys!

No man ever steps in the same river twice, for it's not the same river and he's not the same man.

What codes did you get?

 

[Selkirk_D]

Possible blown rectifier in alternator as well unless fuses did their job.

 

[rbargeron]

OK, here comes another old dummy with 2 cents. Long ago Kubota started putting a special "fusible link" in the system precisely to protect the "intelli-panel" from damage caused by connecting a battery (or jumper cables) backward. It was a loop of high-resistance wire that just plugged into a harness near the starter. Not sure if your L3301 has an equivalent device, or what they call it now - but I'll bet it does. My 1978 L345 has a separate 50-amp fuse on the firewall. Later rigs had a little white plug with a loop of red or green wire. Current models may have a Star-Link module that calls Elon. Best luck - Dick B.

 

[GreensvilleJay]

Actually fusible links would be WORSE for electronics, as they remain intact for a LONGER period of time.
Adding proper 'reverse polarity protection' adds less that $1 per device and should be designed and built into everything 'electronic'.

 

[rbargeron]

Actually fusible links would be WORSE for electronics, as they remain intact for a LONGER period of time.
Adding proper 'reverse polarity protection' adds less that $1 per device and should be designed and built into everything 'electronic'.

Yes now with everything having a hair trigger before a fiery death, a long-burn fuse would just increase the repair bill. Good comment.