[Aaron]

Moving back to some CANBUS discussion. I’ve successfully been injecting 8 characters of text to the instrument cluster (MS BUS) but wanted to have a shot at injecting some Messages into the HS BUS to drive the Tach and Speedo while a cluster is on the bench.

So far Byte(0) of a 7 byte message to 0x201 gives tach movement. It’s 0 to 127 (decimal) value for the scale 0-8000rpm. Effectively:

Displayed RPM = Byte(0) * 63
or Byte(0) = Displayed RPM / 63

Speedometer is uses 2 Bytes further up the line but there’s some weird interaction between the two that vaguely reflects the sum of the Bytes - 40 (ish). ie 0x60 + 0x04 = 180, and the displayed speed is not too far off being 140kmh

Lots more work to be done but an encouraging start.