Bcm maybe

 

sounds like water. damage to the electrical system

 

Similar thing happened to me on Monday, I have a 2008 g37S mt, It wasn't raining much when I drove to work, then it was raining pretty hard while it was parked. When I got back to the parking lot all the lights where on still very bright,I have a brand new battery. The car wouldn't start it wouldn't say clutch on the dash, the trunk opened on it's own and the doors would lock on their own. The lights wouldn't turn off. I asked a coworker if he had jumper cables, he didn't but he came with me to help. He disconnected the battery and connected it again, that didn't seem to help but after a few more tries starting it, it started right up. The lights still wouldn't turn off, but they did after 20 minutes or so and I drove home an hour ride, it's working fine now. I'm looking for a used body control module, I'm going to have to do more research to see which one I need, their are a bunch of them on Ebay for $60-$100 but they don't seem to fit my car. I might take it to my mechanic to check it out, he's good with electrical systems. It's raining pretty hard now, so I'm going to take my other car to work today. Please keep us updated on how you make out with your car.

 

 

Check out this thread: https://www.myg37.com/forums/g37-sed...rograming.html
Replacing the part is easy, It's in the passenger side kick panel, should take basic tools. The problem is it seems like you have to take it to the dealer to reprogram it, the car won't start until you do. I'm going to call my mechanic this week and see what he recommends. I can always replace the part in the dealers parking lot and tell them I had it towed there for the reprogramming or have AAA tow it. Right now my car works fine, I drove my Honda to work tonight because it rained hard tonight and I didn't want to take any chances. I might open the kick panel myself and see if there is any indication it got wet, my mechanic said he looked at it while he was diagnosing my problem with the reverse lights and backup camera, he said it looked fine, no corrosion, it ended up being corroded wires at the switch on the transmission, he charged me for 3.5 hours plus $35 for a new switch, that's why I trust him, he could have charged a lot more. I'll keep you updated, please do the same.
Thanks
PS, I'm probably going to go to a Nissan dealer, I got a Infiniti dealer quote of $1200 for a 4 wheel brake job, and they were going to resurface not replace the rotors when I called them, Nissan quoted $730 for the same thing, I only ended up needing the fronts done. The gas station garage down the street replaced the rotors and pads for $380, this was before I went to the mechanic my body shop owner friend uses, he said he gave me a break because I am friends with the body shop, he knows I'm going to use him exclusively so I'm hoping for a good ongoing relationship with him.

 

 

Hey, sorry to bother you but I was wondering what ended up happening (did you get used or new)?

 

Honestly, I can’t remember exactly what we did but I know we didn’t spend a bunch of money or take it to a dealership because i definitely would’ve remembered that. I feel like my husband tinkered around with it a bit and the car just went back to normal. We thought maybe it got struck by lightening or something.