NOW, I've done it! Crossed battery leads.

Hello all, I am Mr. Badwrench, and my name suits me quite well.

I crossed the battery leads on my truck today. Not my Tundra though, my Tacoma. It's an '03 limited 4X4 V6.

My battery died two weeks ago, and I purchased one today. I don't know what the hell I was thinking, I bought the wrong battery (reversed leads), and my eyes aren't the best and that's my story and I'm sticking to it... Now my truck won't even crank. I have no power to ANYTHING.

Is there a main fuse for this, possibly a fuseable link? It was approaching dusk when I did this, so I really can't trace out the wiring as well as I would like to.

I was in a hurry guys, cut me some slack..

 

There is always a fuse. I would search the engine side first

 

NOOO go away! My first thought actually.

 

I agree with this.

 

Could be a ecu.

 

140A or 120A alternator fuse, check that one upper left side. It may be bolted in.


Maybe this will help...…..

https://www.tacomaworld.com/threads...-box-battery-wire-replacement-upgrade.420450/


Let us know .

 

check your main fuse box , check fuses marked "main fuse or efi fuse or something like that" also check your manual book for list of main fuses

 

@ARamirez73 can sell/install the battery.

 

Or you get

 

I can’t imagine the battery actually going bad.

 

take the battery to the auto parts store that you prefer and have them check the battery and do a load test on battery

 

I load tested it, it is okay.

 

OP your username is quite fitting at the moment.

I wouldn't sweat it, that's why there are fuses. I would start by checking them. Do you know how?

Toyota switches the posts so we need to buy special batteries, so I vote blame them.

 

yeah, yeah... fits like a glove. Yeah, I will manage testing my fuses, it is just too dark to tear into it. Anybody else done this? I am really sweating this one.

 

I would call AAA and have them come out to check to see if it’s really the battery. They have that battery tester and OBDII reader on their vehicles. However, you’ll need to tell them that you need them to send out the mechanic’s truck, because you don’t know what the problem is.

Good luck!

 

Any suggestions though?

 

#34 is what I am after, apparently. Thank you Migraine, I do appreciate this. I have rebuilt engines, drive trains... transmissions, xfer cases, front and rear ends and have restored Scouts, Blazers and CJ's. But I have never screwed anything up like this, nothing so simple as a battery replacement! At least nothing I couldn't fix. I hope this is just a fuse! I am getting old... my mind isn't what it was

 

No! Thank You! You have most certainly helped!

 

For a Honda not a Toyota, but same situation.

Watch the whole video first.

Replace the fuse though, don't twist it to make contact. Not even as a test.

https://youtu.be/keuRJgOMfK4

 

My pops and I did this on an old Ford years ago. In that particular case, the battery was fine. Starter solenoid popped and smoked, and one of the fusible links blew.

As soon as I started reading your post, the first thing I thought was the fusible links. I'd certainly check there first. If that doesn't work, maybe check the starter solenoid.

 

A buddy of mine did this to a truck of mine when we where younger. Fried my ecu.

 

I have guys do this at work all the time not really a big deal just replace the main fuse which is 100 percent blown. Don’t forget to cross your fingers though....

 

Yeah definitely don’t do that... that’s how you cook the ECU

 

Can someone please explain this. What's with all thr aRamirez threads/inside jokes.

 

He was away on vacation. We were all try to jam up his inbox with alerts/messages. And his side job is at AZ.
The @ARamirez73 was all in fun but he his back now so it should stop or at least slow down.

 

Just an update on this... Had to replace a handful of fuses and clear my check engine light, but I got it running again. The ECM is fine, and the check engine light spit out about 30 some codes... if I counted correctly. The truck smoked like crazy for about five minutes after I started it, probably because I desperately tried turning the key forward about a dozen times after realizing what I had done (could hear the fuel pump buzzing).

All fixed, as far as I can tell. Wish me luck though, I hope that is all I screwed up. Thank you, all who responded, for you input.

 

Great to hear!