Jaunius, I too see different values in my trace in the seconds before the car turns off. Only traced the first 4 of bytes of 0x54b, but have seen it go from: 10 48 88 12 (while the car was still turned ON) to 10 08 80 00 (while the car was busy turning OFF) D1 going from 48 to 08 would explain the change in resulting values you see! OKidoki, Anko From: Jaunius Kapkan <jaunius@gmx.com> Sent: Saturday, 15 February 2020 11:05 am To: Mark Webb-Johnson <mark@webb-johnson.net> Cc: OVMS Developers <ovmsdev@lists.openvehicles.com> Subject: Re: [Ovmsdev] Nissan LEAF: HVAC Metrics Thanks Mark, that explains it! Most likeley that is what happens. Will have to check the CAN messages and make something similar. Regards, Jaunius Kapkan [Sent from cellphone] On 2020-02-14, at 11:15, Mark Webb-Johnson <mark@webb-johnson.net<mailto:mark@webb-johnson.net>> wrote: