did my y-Cable (sub-d side).

Connect CANUSB and OVMS.

Filter set to receive above 5E0

Can now see the request: "7E0      8 03 22 00 46 00 00 00 00" 

and immediately the response "7E8      8 04 62 00 46 2A AA AA AA"

From this side it looks ok.

Shown Temp in Display is 2 to 3°C. So the calc could be 2a-40 = 3°

Attached the Log