Had a car come in for a list of history codes on the CAN network and checksum errors. TSB said to flash and update steering and suspension module, did both via SPS J2534, all codes gone but now have current hard codes for all four shocks short to ground...they will not clear and are current. These were not there before module update. I also configured both modules, there were no specific actions post programming for the suspension module (such as open/close door cycle ignition etc). Are there any current GM techs that can help me with what to try. I cannot reprogram suspension module because 17 and later if it has latest version, it will not over write... help! I am stuck. 2017 Cadillac AWD XT5 52k
Thanks.