I have looked at your CAN mapping and compared yours to mine and It looks as if I have no errors.
if I take Byte 4 or 5, convert to Decimal, Subtract byte 3 and multiply by 255 I get the same result for all four lines. Apart from line 1 that starts with the Zero. But Yours like mine if you subtract ...

here are the two files from Can Inspector
The Motec can inspector has a file extension of .asx that I can not attach, so I have changed it to .txt.
I will have a look at your file tonight to see if I can spot an error.

Attached Parameter file

The cruise limiting appears to be trying but the speed is erratic. It as if the the power is switched on and off about every 1/4 seconds. both in cruise off and on.
Attached are two Can dumps on Cruise on one off.
I have adjusted the speedflt from the origional setting of 5 to 10 but with no effect ...

For some reason the Kangaroo drive has stopped, No logical reason, as I did not even get as far as your suggestion. But no cruise control.
If you are able, could you create a can export as per my example and send it to me. I am guessing no need to detail what speed you are logging. I just want to ...

I have a GT40 that I built but with a Tesla motor.
I am trying to install the speed limiting Cruise Control.

It is almost there but being in Australia it is driving a bit like a kangaroo, giving power on and off in rapid sequence.
Clearly the Can output is not correct. I wonder if anybody can let ...

I have a Tesla in a GT40. I am trying to get the Speed Limiting Cruise control working.
It is almost there but being in Australia it is driving a bit like a kangaroo, giving power on and off in rapid sequence.
Clearly the Can output is not correct. I wonder if anybody can let me have an example of ...