08 Nissan pathfinder
I have a nissan pathfinder that I mistake and crossed cables positive on to the negative and I have a lilttle blue blinking key on my dash and nothing else turns on plz help plz
Check your manual but the key symbol usually indicates something with the antitheft system.
Check to see if one or more of the fusible links on the battery positive cable have fried.
Positive Battery Cable (comes with fusible link) - Nissan (24077-ZS50C)
You may well have burned out computer modules. It's also possible that a master fuse or fusible link burned out. As a first pass you might want to hook up a scan tool to see if you can even communicate with the PCM.
You can find the shop manual for that vehicle, which may contain useful troubleshooting information, here:
https://charm.li/Nissan-Datsun/2008/
You should always double check your work before you attach both cables to your respective batteries. "Positive to positive, negative to negative"
(I can hear Scotty's voice as I type this). Red always means positive, black always means negative. Hopefully there's some sort of fail-safe built into the car, otherwise, you may have fried your electronics. You really shouldn't work on anything electronic if you don't know 100% what you're doing. It was an accident, but the electrons don't care, unfortunately. All they care about is finding the shortest path to ground, even if it's through expensive electronics.
