402is250

so i did my research and cannot for my life find the issue. I walked up to my car and the door unlocked fine. I got in it and slightly had my foot on the brake, i didnt mean too, and pressed my push to start button once to turn my power on than all of the sudden all my power cut off. My doors wont lock or unlock. hazards dont even work. i tried jumping it, didnt do a thing. i checked all my fuses and theyre good. Checked my main fuse and its good. My battery is good. I just changed my key battery. im thinking im going to have to pull the ecu and check it. if i cant find the issue ill have to tow it to a shop. any one have any idea of what could be happening? should i try to try to reset my ecu?

jonathanz

iTrader: (2)

try unplug battery for a min then plug it back in. see if that work

darkdream

Is it a clear title car?

402is250

I tried unplugging the battery terminals and it didn't do anything. Yes it's a clean title.

n0lasaints

I have a 07 is250 and experience the exact same thing and im lost as well, i even performed all the steps you've listed. If I get a solution i will definitely share it with you

4TehNguyen

iTrader: (1)

how do you know the battery is good? How old is the battery?

NYKnick101

Im about 90% sure its the battery because I had this happen on 2 vehicles and 2 bikes before. Sometimes batteries read the proper voltage but dont have enough amps to start the vehicle let alone the electronics. I've gotten to the point where I am ripping apart the entire car trying to figure it out when trying a new battery worked in an instance. Take your battery out and try it in another car or take another cars battery and try it in yours. There you would find your culprit.

What my last car would do is start all the electronics but the moment i attempted to start it, it would cut out. Unplug the battery and it would do the same thing over and over.

EXL124

Its def the battery. Just happened to me this past weekend. Changed the battery and its all good now.