How to get ABS speed through CAN


#1

As I know that ABS speed is 10 times more accurate than transmission speed. But how to get ABS speed through ECU? Can anyone provide solution?


#2

If your going to do that you might want to try pulling all of the sensors and averaging them. But then again, I don’t know if the tire size is going to be calculated from them. But you would have to find the PID’s for them unless someone else has already pulled those.

Rodney


#3

Hi Rodney,
Nice to know you and thanks for your suggestion.
For this case, I don’t want to do anything with tire sensors. I want to get ABS speed directly from OBDII CAN.
Is it possible, or do you know where to buy this product?
BR.
William


#4

Sorry I means the speed sensors not the tire sensors. They are available from the ABS module but just depends on what codes they are. As I mentioned before they may not be scaled to the proper speed.

Still would average them since they would be off a little. You could grab just one but when going around corners or turns they would be off a little from side to side and from front to back. May only be 1 or 2 MPH but it is something to be aware of. But I would think averaging all 4 together would take care of any issues.

Rodney