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BMW, ELM327 from Lescars, only working intermittently #142
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Thanks for your report. Could you please provide some log files from the connection attempts. Have you tried the latest V2.2.4 already? Thx |
I had another look at this today I updated to AndrOBD v2.3.3 from F-Droid With the engine stopped, I observe the following:
Then I started the engine. With the engine running, I was able to connect immediately. I browsed through the different screens in AndrOBD, looked at the fault codes, etc. It stayed connected for a lot longer than when I tried v2.2.2 in May. Eventually it did lose the connection but I was able to reconnect again immediately. In that case, it would be really useful if it could reconnect automatically without intervention by the user. |
That is what AndrOBD attempts to do when it logs above messages ...
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I've sent you a copy of the log by private email I've tried two different permutations of the device from Lescars:
They both behave in a similar way, sometimes they lose the connection and try to reconnect many times. |
Here are my notes on analysis of your log file: Notes:I see a lot of inconsistencies in your log file and I cannot find any obvious cause to that.
My assumption is that your adapters have a timing issue between Bluetooth (Host) and CAN (Vehicle) protocol Suggestions:Following workarounds helped most of the other user issues:
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I disabled the ATZ command. I continue to observe similar problems With ZX-3017-675 the connection is established and I can see the vehicle info and data screens. After changing between screens a few times, I notice the screens appear blank. Only the header at the top is visible. It is always "Connected" but the data is missing With NX-3014-675 it is not connecting at all, it gets stuck at "ECU detect..." and I don't see anything else. Is it possible for the app to detect the bad ELM devices and display a warning? I can buy a different device if necessary, can you make any suggestions on the good devices to buy? I am in Switzerland, I found these on digitec.ch but I can buy from another supplier or import from Germany or elsewhere if necessary. |
Did you ever try to use AndrOBD with your adapters on another mobile? I cannot really suggest a special adapter, but I will initiate an issue / community post for users to post their experience with certain adapters / vehicles / mobiles. |
Please see #187 |
Describe the bug
Purchased a new Lescars ELM327 bluetooth. Installed it in a BMW. It pairs with the app but it only intermittently works. It only works for a few seconds, it downloads the vehicle information and then other functions don't work.
I saw a note in the Lescars ELM327 manual "Certains marques, telles que BMW ou Mercedes, proposent leurs propres applications pour la lecture des données".
There are discussions in the BimmerForums forum where they suggest that ELM327 will never work and it is necessary to use VAG-COM cables. It is not clear if there is any free software solution for VAG-COM.
To Reproduce
Steps to reproduce the behavior: - see above
Expected behavior
Should work every time.
AndrOBD Debug log files
Before I do this, can you please clarify if I am the first person with this problem.
Log detail level
The detail level of the logged debug information can be adjusted in the Settings > Development options > Logging level.
By default the detail level is set to INFO.
Preferred detail level for issue analysis is DEBUG. (Since V1.5.0 this level is called FINE)
Important details on your environment:
Additional context
Add any other context about the problem here.
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