✅ BMW X3 M40i support

[jeff]

Awesome! For your BMW can you do a quick walk through your vehicle parameters when connected? This will fill your OBD scan logs with the results from talking to the car and I can use that to confirm the parameter values. Once you've done that send the logs to the same email again.

[jeff]

Oh! Let's move the BMW discussion to a separate thread btw, I'll do that now.

[sidbmw]

Will do in a bit. Screenshot is for Acura btw (for anyone else looking in the future).

Also, the BMW does have a valid internet connection and I can see fuel/tire pressure etc status in the mybmw app.

[jeff]

BMW accounts aren't supported yet, but we can see if we can pull those parameters from OBD. Let me take a quick look.

[jeff]

Is it already pulling your odometer reading?

[jeff]

Just added X3_ODO in SHA: 89ed6c7. Let me know if that loads; I have a feeling there's some extra configurations we might need to add to support BMW.

[sidbmw]

From what I saw in bimmercode, I think it has 29 ECU's lol. So might need to talk to the correct ECU to get odometer reading. Chatgpt says you gotta talk to the instrument cluster ECU:

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ATZ       # Reset the OBD-II adapter
ATSP6     # Set the protocol to ISO 15765-4 CAN (11-bit ID)
ATSH0x300 # Set the header to the Kombi (Instrument Cluster)
22 F190   # Request the odometer reading

I was writing my own little primitive app to learn Swift and do something very similar to Sidecar haha. Might modify it a bit to help debug

[jeff]

Looks like we're getting NO DATA responses, so may need to do some extra configuration of the scanner before we can pull values. Looking into this.

[jeff]

Ok we'll need to do some manual testing to see how we can get the car to talk to us. Here's a few command sequences to try:

Check that we can get the VIN

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0902

Check that we can get fuel level

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012F

Is setting the header breaking things?

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ATSH7E0
012F

Is setting the receive address breaking things?

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ATCRA7E8
012F

Is setting both breaking things?

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ATSH7E0
ATCRA7E8
012F

Send logs after please!

[sidbmw]

Just sent you logs. Throttle position and speed work but nothing else.