Alright guys, so my car just recently hit 100k on it. I have a 2006 is350 base model trim. So recently my car started acting up right after I installed my new sound system. I had a system before but I blew my previous one so I just swapped out subs. After I did that about 2-3 weeks later out of no where my AC would still blow right after i turn off my car and it will stay on and stay blowing till my battery is fully drain. I don't understand what it could be and why it is doing that neither could my sponsor. He believe a fuse was blew or something have to do with my ECU. He recommend me to take it to the dealership but I hate going there because we all know what happen to our wallets when we do. But thing is, if i don't figure it out or find out it cost to much I'll just sell the car. The car is in perfect shape said my mechanic, but as long I turn off my AC before I turn off the car it will not drain my battery.

Please leave some feedback and help me out!
Thanks!

 

Seems like you have "short" somewhere, first you need the find what it cause (locate the short) then you need new Computer for climate control. My friend had similar problem.

 

But back the stock radio and then see if the problem comes back if it does you will know its from whatever you installed. Having that stereo and trying to diagnose an electrical problem will make it much more difficult. Also unhook all added mods like HID's running lights etc.

 

Climate control relay? Prob switch from ignition is bad, so you only use switch from power button and power button only works when car is on. That's my guess....

 

it sounds like it could be it. how much did it cost your buddy?

 

yesterday i gave my battery to autozone so they could fully recharge my battery. it was done installed and work perfectly fine. i drove it around yesterday and everything was fine. then this morning i try to turn the car on, and couldnt. it was completely dead again. i honestly dont know what it could be now that is draining my power. i turned everything off right before i turned the car off as well.

 

Does the amp remain on when you shut off the car? seems like your remote wire for the system is shorting somewhere, or your remote wire on the amp is touching the powerwire. check those connections from front to back.

 

my system is completely out. i took out the subs and amp already. but the wires are still there but i taped them up with electrical tapes already so it shouldnt be sucking any power.

 

bumppppppp! still need help =(

 

Sounds like you need a new battery. But try this charge the battery up drive it, then at night unplug the battery and then check it the next morning. But, to me sound like a battery issue