MoTeC Global Forum

Hi all,

I have a car fitted with M800 ecu where i have several buttons and switches, wheelspeeds connected by wire.
I would like to remove the wiring and change it to canbus.
The only problem is... i'm not familiar with the software of the ecu and don't know how to setup everyting (changing analog and digital inputs to can)
The dash inside is not a motec one but i can send custom canbus messages, wich is no problem.

Is there someone who can and wants to help me with this?
I can send the map if needed.

Best regards,
Mitchell

It's possible to do this.

You use Adjust->Gerneral Setup->Communications->CAN Setup, select one of the available CAN Data and set the type to 4 (ADL Receive), and the Address to the decimal value of the CAN ID you will be sending.

Now you change your sensors (Adjust->Sensor Setup->Input Setup...), to use "ADLxx" as the input source instead of AT/AV/DIG.

The data is transmitted as a compound message, with the first byte containing 0-3, and words at byte offset 2, 4 and 6 containing the 16-bit parameters that are transmitted in Big Endian format.

If you are using wheelspeeds for traction control, I suggest you keep those connected to the ECU. But buttons, switches and knobs are ideal for sending over CAN bus.

There is a little bit of help in the M800 help topic for "Input Setup". Also see this forum topic:

viewtopic.php?f=11&t=5056&p=22997&hilit=dash+transmit#p22997

Hope that can get you started.