Stumpy

Hi, ive been having an issue the past couple months with my 2010 LNF. It started with the gauges dying randomly ranging from less than a second to minutes long, however this didnt effect the RPD which still read accurately. Several readings would read ---, including Trip A and B and ambient air temp. After a while this became more and more frequent and started throwing ESC, ABS, and TC codes in the gauges. Once the gauges kicked back on, the TC and ABS light would turn off, but the security light would come on. Now its to the point where after an episode, TC and ABS stay lit and the CEL will show U0073 (when i can read it because im getting linking errors now) and i get a no crank until either I clear the code or let the car sit. I think its a fried BCM but I'm really hoping to avoid a dealer. Obviously if this needs Tech 2, i will go to a gm dealer but any help would be appreciated. Thanks

Slowbalt2000

iTrader: (1)

It sounds to me like you have a short in the can bus somewhere or one of the modules is bringing the bus down.

Slowbalt2000

iTrader: (1)

Can you tell which module the code set in?

LTBALTBMX

Do you have an obd adapter plugged in by any chance?

Stumpy

No idea. I scanned with a basic OBDII scanner, but all i get is U0073 or more recently linking error. I think it might be in the PS motor. Ive unplugged connections to it and the CEL went away. Im going to run it like that for a while and see if it replicates. If it ends up being that, ill need to replace the motor, issue being its a discontinued part. Im not sure if any cobalt steering column will bolt up, so ill have to do some more research on that.

Stumpy

Not exactly sure what you mean. I do have a obd data reader at my parents house, but ive never used it in this car, and I have a cheap OBDII scanner that i only use to check/erase codes.