VCIM (Apparently is a bridge module since both buses connect)īody Control Module (Also connects both buses. VCIM - Vehicle Communications Inferface Module (OnStar! If a 2011 can be installed in your modules place you can get free Onstar App service) The M2 device I have is not QUITE working yet fully with SWCAN.Īnyhow, might still be a fun process to try pulling the codes directly even if you do find the issue. Having had one for a while I wish I had gotten the dual channel PICAN2 with 12 volt option. Going to try the trick of grounding the CAN- and put CAN+ to the SWCAN and see if it works. I suspect they likely are on the low speed bus. Going to check and see if the suspension and park assist are on the high speed or low speed bus. My Y cable came today and I have a Pican2 I can plug in with my USB-ODBII cable and watch what is coming through. I don't think the extended support will do anything for this stuff but I will see what I can do shortly to pull codes. There are things you can do to trouble shoot the issue even if you can't quite read the codes. Do you know if you have the auto adjusting rear suspension? If you do I would concentrate on the air compressor. Have you checked them for broken, disconnected wires?Īnd the only suspension thing I am aware of has to do with the auto leveling rear suspension. The parking assist should be the sensors in the back. Someone might be able to point you in the right direction. If you have been approved on the Avalanche Site make sure you post a description on the system.

Scanxl pro readings erratic