Alright, before anyone starts poking well deserved fun, you're right. Mistakes happen though. I've jumped so many cars and I can't believe I screwed it up.

This is an 09 Standard model Fit.

Either way, nothing smells like burnt electronics when it happened. I made sure to stick my nose everywhere possible in that car. However, the car is dead as can be save for the horn. That works, surprisingly. Didn't try headlights, but all interior is completely dead and nothing happens when you turn the key. My question is if the inline battery fuses (if this car has them) were blown, the horn would be silent since the battery is essentially disconnected from the car, correct?

So this would mean that the 50/40a Igniton/Option fuse would be blown? Possibly a few others, but I'm betting replacing that fuse will get it up and running, if not limping?

 

I thought this was some sort of freak skiing accident. Never mind.

Good luck with your electrical issue.

edit: sorry that was flip. I'd definitely start by inspecting the fuses located on the battery terminal. I don't know what they look like to know if visual inspection will help, but I suspect one or more of these are blown.

 

I'd be checking all the fuses. Esp. the one in the engine compartment. See page 5 for both locations. Page 6 tells you how to tell if they are blown
https://techinfo.honda.com/rjanisis/...707O00217A.pdf

good luck

 

wow that sucks.

 

is it possible to fry your ECU doing that? Hopefully you just a fuse or two.

 

LOL... I don't know where my mind was either when I was reading this post because I thought he jumped over something in his FIT! (IE: Evel Knieval)

 

First, consider having a Honda dealer shop check this out.
Yes I think you blew the main fuse on your Fit but the main fault is probably you absolutely killed your Fit battery and will have to replace it. Once replaced and the battery powerr distribution (80A), EPS control (60A), and Ignition switch (50A) fuses replaced (if it needs to be and they are bolt in not push in under the hood oh heck you'll need to check them all probably fortunately half are push types) then see if anything lights up. If not you'll have to go fuse by fuse and hope the headlight fusible links are OK. And yes the ECM may be damaged.
You'll need a full OBD exam and Honda's too. Unfortunately, Fits ae fullof 5vdc solid state circuitry that does not like reverse voltage. Hopefully you will be lucky and the main fuse
Good luck.

PS the horn fuse 15A also protects the brake lights. If you have a horn you ought to have brake lights too. Its the only 15A fuse thereb y my manual., top of the 3 stacked under the bolt-in big fuses.
Consider having a Honda dealer do this checkout as it can be delicate.

 

Can you turn on the headlights? Will power door locks work? Can you unlock with remote? Can you start the engine?

I saw one owner had the same issue. After heavy snow, he could not open doors with remote. He could not turn Headlights on. However, he could start the engine but alarm activate due to power door locks.

 

Please keep us posted; I hope I never make this mistake, but if a mistake can be made, it will be. My only self-inflicted damage to date was a blown horn fuse (which also disabled the transmission unlock function).

The downside of all the computerized systems on contemporary cars is that an electrical "mistake" can have dire consequences. There wasn't much you could do to points/condenser/coil ignition systems. I think my first car had maybe 6 fuses total, vs 60-plus on a Fit. A high end BMW or Mercedes must be an electrical nightmare.