Hi, For some of my requests I get errors: steve@maximus ovms-logs % grep 'process.*error' log.20201228 | sed -e 's/^.*vehicle/vehicle/' | sort | uniq -c 1 vehicle: PollerReceive[607F1]: process OBD/UDS error 22(6335) code=21 4 vehicle: PollerReceive[607F1]: process OBD/UDS error 22(DD68) code=21 4 vehicle: PollerReceive[607F1]: process OBD/UDS error 22(DD69) code=21 285 vehicle: PollerReceive[614F1]: process OBD/UDS error 22(DEF7) code=12 304 vehicle: PollerReceive[614F1]: process OBD/UDS error 22(DEFA) code=31 39 vehicle: PollerReceive[61AF1]: process OBD/UDS error 22(DE8A) code=31 148 vehicle: PollerReceive[640F1]: process OBD/UDS error 22(D130) code=22 I found a list here: https://automotive.wiki/index.php/ISO_14229 If so: 0x21: Busy, try again 0x12: sub function not supported (problem with my PID?) 0x31: "request out of range". 0x22: "conditions not correct". Does that sound right? Thanks, Steve D