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barracuda-fsh / pyobd

An OBD-II compliant car diagnostic tool
GNU General Public License v2.0
853 stars 46 forks source link

Doesn't work with J1939 Bluetooth Adapter #37

Open unixtech opened 1 month ago

unixtech commented 1 month ago

Connection is eventually working after trying many times but no data or sensors are working for Cummins engine.

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Kindly direct me in proper direction, Thank you.

barracuda-fsh commented 1 month ago

I'm not sure if I can help, but on bluetooth you need to set FAST to disabled and timeout to 5 or 10. Tell me if it helps.

unixtech commented 1 month ago

Still won't work, but Thank you for Answering. For reference, On Android Torque pro It shows all the sensors but Fault code won't show up. All I need to see is Fault codes.

barracuda-fsh commented 1 month ago

Try "Car Scanner" app on android. It shows errors for free. I don't know why pyobd doesn't work in this case.

barracuda-fsh commented 1 month ago

You could try editing obd_io.py line 77 to this - for manual protocol selection(1-9 and A are valid): self.connection = obd.OBD(portstr=portnum, baudrate=baud, protocol="A", fast=FAST, timeout=truncate(float(SERTIMEOUT),1), check_voltage=False, start_low_power=False)

unixtech commented 1 month ago

I already changed the protocol to "A", None of the Android app has support for SAE1939 29b 250KB protocol