2009 aveo5 check engine light (drivetrain pcm ram error)

[brycesteele]

my battery died because i left the lights on. i had to get jump started. after that the check engine light came on. i hooked it up to a code reader and got "powertrain control module ram error" back. it was the only code that was setting it off. and i tried to clear it out and it just come back on. i asked the kid who jumped me and he said his check engine light came on for about a day then went back off. i took it to a chevy garage and they hooked it up and they reset the whole computer in the car (reprogrammed and updated it). the mechanic then drove it around the lot for a while to see if the check engine light would come back on and he said when he come back in that it didnt. as soon as i went out and started it back up it was back on. so i went back in and asked about it and they told me the next thing they would have to do is go through and check all of the ground wires. (theres several pages of them) they said it would cost over 200 dollars. i dont have that money to spend especially if they cant guarantee its going to fix the problem. any suggestions or related problems with solutions? any sort of help would be greatly appreciated! thanks

[veloce]

Hi. Have the same plroblem and trying to find the solution. The error code is P0604 and the dealer claims I have to replace the engine computer but I do not know where it is exactly. There seems to be a large white box underneath the instrument cluster with 2 large type plug-ins but I don't know if this is the one so if anybody knows the location of the engine compute ECU/ECM please let me know. TIA.

[ontarian_frog]

ECM is under the hood bolted to the driver side shock tower I believe (Haven't had an Aveo since 2011).

[kevin7898]

Yup its there, a big aluminum block between the the battery and firewall

[veloce]

ECM is under the hood bolted to the driver side shock tower I believe (Haven't had an Aveo since 2011).

Yes I found it where you mentioned it was.
My blockheater cord was right on top of it.
Have a great day.
Jacob

[brycesteele]

do you have the price on that? mine has not affected how it runs at all. so i dont wanna dump a bunch of money into it if its just something simple.