04-27-2022, 09:54 PM
Like mentioned in an above post, the OEM sensor is reading (or actually making) pulses from the slotted ring. So there are a lot of pulses going to the meter. And you can see the pulses from the sensor with an o-scope. I have done that and posted a video of them on youtube. They are just square waves whose freq. varies with wheel speed.
The signal on a serial data line will have some sort of word format as it is a digital communication between the two devices. We have no information on that format or how to interpret it. It could be a CANBUS type but I don't know.
So no, you can't just fire pulses from your speed sensor into the ECU (maybe yes on a 2010-13). Even if you could you would only be getting one pulse per wheel revolution instead of the more numerous pulses the pulser ring provides and speed data would be incorrect into the ECU.
I would imagine your new meter takes the speed data and encodes it into the word going to the ECU. And some setup on your new meter is incorrect or not compatible with the Honda.
I went to the US website for your meter and could not find that model. Maybe you could call them for more info.
The signal on a serial data line will have some sort of word format as it is a digital communication between the two devices. We have no information on that format or how to interpret it. It could be a CANBUS type but I don't know.
So no, you can't just fire pulses from your speed sensor into the ECU (maybe yes on a 2010-13). Even if you could you would only be getting one pulse per wheel revolution instead of the more numerous pulses the pulser ring provides and speed data would be incorrect into the ECU.
I would imagine your new meter takes the speed data and encodes it into the word going to the ECU. And some setup on your new meter is incorrect or not compatible with the Honda.
I went to the US website for your meter and could not find that model. Maybe you could call them for more info.