bymer

So I took out the ICV cleaned it out, it had a light coat of dust on it. Cleaned the throttle body, cleaned the DISA. Put it all back in, car seems to run the same, and the ICV still does not shut off. I think this could be a bad DME or bad IBS cable? Hope it is not a DME. Any other suggestions?

*Can you buy a used DME and program it to a car yourself or do you need the dealer?

bymer

I have an update guys. So I left the battery overnight with the DME disconnected (Fuse) and the next morning I get a new error message (Car on a lift image) High Battery Drain/Increased Battery Discharge.
I was actually relieved because maybe this would show me what is causing the drain. I immediately connect the car to DIS to check the errors and this is what it gives me, i am not fully understanding this, could you guys help out?

mikegreen

Whew. I dunno....
You might try unplugging your aftermarket lights - all of them.. and see what happens. Weird things can happen with anything electrical in these cars...

I don't think it is the DME if it was unpowered all night.

Did you have the ISV disconnected overnight too? Or did it shut off when you pulled the fuse for the DME?

Do you have anything wired to the 30 term?

At this point, if I was you, I would replace the ISV as a long shot...then probably end up at the dealer with my tail between my legs.

bymer

Unplugged the HID kit and put my stock halogens on, nothing else connected to the 30 term that is aftermarket. Still the same issue. I made an appointment with the dealer, I cannot take it anymore as I have tried everything to diagnose it within my capability. Will see the dealer tomorrow and hope I won't get drained like my battery. Thanks for the help guys!

bymer

Hey guys so after 2 days of leaving my car at the dealer, they said it is possible that the SGM/SIM Airbag Gateway Module is bad. They want to replace it, and quoted me $1,900.. that is a lot of money for me so I am now looking to fix this on my own. I do not believe them because the SGM ecu does not seem to give me any kind of error. no Airbag light, no errors in DIS.

My problem is K-CAN communication. Seems there is a short, loose connection, or a bad ecu somewhere along this K-CAN. I do not have any experience working/understanding how this K-CAN works. Is there a way for me to check this K-CAN connection using a multimeter, what can I do?

I also have a screen of the errors related to K-CAN: