I'm also have exact same concerns on the IDash super gauge (with v1.23 software) readings for my LM2. I can't get many of the ones listed in PID list for new LM2 that I've got from Banks. Are any updates on a solution for the IDash readings?
It happened to me once on my '22 Tahoe RST with 900 miles only. Also lost my hotspot. Checked with a scanner and got 10 codes mostly related to ECM communication. Could not erase the codes by OBD scanner. Fixed by disconnecting negative battery terminal OVERNIGHT to have a comlete power...
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