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terrik terrik is offline
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Car: 2018 M240i
Default B58 JB4 pull codes error/no stats - 03-24-2019, 06:03 PM

Hi all,

I installed my new JB4 in my 2018 M240i, and I have two issues.

First issue is that I have no stats in the Android phone app showing in the gauges, other than Map # and boost pressure. I don't get anything at all for RPM, temps, gear, etc... should I be?

Second issue is when I go to pull codes I get "Invalid read. Please try again." I tried with both a PC and the Android app via the JB4 USB cable. Car was turned onto electronics only, with the engine off. I had a CEL I wanted to check and had to use my plain old OB2 scanner to pull it because I couldnt pull from the JB4. Am I doing something wrong?

Thanks! Please let me know if you need any logs. I have the firmware labeled 'BMW_B48_B58_OBDII_9'.
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Andrew1810 Andrew1810 is offline
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Car: M140i
Default 03-25-2019, 03:12 AM

Is the OBD adapter connected properly ? This is where the JB4 will pull figures from for the gauges and reading error codes.

I believe the App also had an update which broke error code reading with the 'invalid read' issue, however there was a further update a couple of days later to correct this. Might be worth checking to make sure yours is up to date from the play/app store.

Edit, also just noticed you said through the USB cable.. does that mean you do not have the bluetooth kit ?
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terrik terrik is offline
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Car: 2018 M240i
Default 03-25-2019, 05:12 AM

Hey, thanks for the response. I'm only using the BMS USB data cable. Was the OBD adapter supposed to come with the kit? There wasn't one in my box...though I noticed a connector for it on the JB4.

That might explain everything....
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Andrew1810 Andrew1810 is offline
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Default 03-25-2019, 05:24 AM

Did you buy the kit new ? I believe it does come with it, however I bought mine off someone I knew with it so cant say 100%.

Hopefully someone can provide additional info on that.

The OBD will give you all the data you're missing.
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terrik terrik is offline
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Default 03-25-2019, 07:14 AM

Ok, I'll see if I can get it all sorted. Thanks for your help!
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MasterYous MasterYous is offline
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Car: BMW M240i
Default 04-01-2019, 08:47 PM

B58 JB4 comes with obdII/CANbus wire that connects to JB4 board. Can’t do most of the control functions without it, and can’t read DME-specific info without it. You can buy a replacement cable at burgertuning. Android phone app needs Bluetooth kit instead of USB data cable. Also available on website. Either go with USB and windows, or Bluetooth and mobile.


2017 F23/M240i Convertible (B58) / 6MT / FF Wires / EWG Wires / BMS Air Intake / Stock Exhaust / BMS Meth (100%) / 93 Octane
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