I have a fiat 500 EU5 (it is an assetto corsa) version with an ME7.9.10 ecu originally.
The original wiring is connected to the EMU with a PNP adapter.
The CAN bus settings i choosed Fiat 500, on the status window i can see that the CAN bus is green/ok.
The wheel speed input is setted to CAN wheel speed but the EMU cant see any of the wheel speeds.
I checked today on the can bus, the ABS is there and sending just fine. It seems that it has a different can ID as the EMU black expects.
I also tried with EU6 which is not the right for the car, also no wheel speed.
The emu sends out both with Fiat 500 and 500 EU 6 a frame which wakes up the ABS so that ID should be the same for some reason, if i turn off the CAN dash to none, also the ABS is not sending anymore.
Until now i found out that there are 3 BCM Frames with the ID-s:810A000x, A18A000x, C24A000X, i think the possible ABS frames are with the ID-s: A18A001, A1CA001, 618A001.
Can someone help me to get the wheel speed working?
I think that this abs sends with different CAN ID so it will not work directly as Fiat 500, but it would be really helpful if i had the offsets and bit positions from the wheel speeds, then i could just make as user defined can stream.
Thank you
Just for information if someone has a problem with this also, the ABS was defect somehow it did sent some of the can messages, but not all of them. I bought new/used abs and the vehicle speed is worked right away, but the individual wheel speeds are not showing just vehicle speed, i made a custom can message input for all of them this way i could make a front/rear wheel speed differentil Traction control.
These are the messages which are sent from the ABS:
Wheel Speeds: 0x0218A006 (Values Big Endian) (ECU RECEIVE)
Rear Right: B1 (lsb) & B0 (msb)
Rear Left: B3 (lsb) & B2 (msb)
Front Right: B5 (lsb) & B4 (msb)
Front Left: B7 (lsb) & B6 (msb)
//B1, B3, B5, B7: 0x2C indicates stopped vehicle
( Thanks to Jon from the ecumaster FB group) !
Just to add to this for anyone looking to use the above, since telling you about this I’ve learned that while the above will indeed work, the most significant bit is actually a status flag and should be ignored for the wheelspeed calculation.
It’s not a big deal as I went quite a while without actually ever noticing this, but I figure I should share regardless. Later when I get to my car I can share the configuration which I am currently using, including the offset (2C) selected in the EMU software.
