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2010 2011 BMW 5 Series Forum F10 F10 Technical Topics Engine, Transmission, Exhaust, Drivetrain, ECU Software Modifications JB4 Beta and Error Codes
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      02-03-2017, 02:17 PM   #1
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JB4 Beta and Error Codes

Hey guys. I just installed a JB4 Beta, JB4 Connect, and a BCM on a 2011 BMW 550i. I only installed the BCM in case I want to have it in the future. Today I would be thrilled with Map 1 or 2.

Actually, right now I would be happy with no codes on Map 0. Does anyone have any suggestions as to what the issue could be or what I need to do to clear a Rail Sensor Code? After I got it all hooked up, I started it and it immediately threw this code, along with "unspecified code". It was running perfectly before the install. I went back and double and triple checked all connections and I can't figure out what the issue is.

Anyone have any idea where I should start?

Thanks so much for the help. Long time lurker, first time poster.
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      02-03-2017, 02:23 PM   #2
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JB4 Beta and Error Codes

Sorry..... 119001 Rail Sensor Short and 119101 No Description Found

Those are the exact codes its thrown since I first fired it up.
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      02-03-2017, 02:52 PM   #3
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replace the rail ?
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2011 550i RWD 60-130 7.35
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      02-03-2017, 03:16 PM   #4
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Thanks for the reply

Quote:
Originally Posted by badblack550xi View Post
replace the rail ?
My concern was that if there was an issue with something (and I caused the short in the rail sensor), then wouldn't whatever caused the issue still be there to cause a new one to short when I fire it up after replacing it? The car had no issues before....never in limp mode once.... the second I fired it up it fired off the code.

I just didn't know if there was a setting in the JB4 connect app or some common error somewhere along the line that can cause this. I bought the JB4 Beta used and set everything back to default, then fired it up in Map 1.

Thanks for the help... I'm dying to get this thing out and see what it will do.
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      02-12-2018, 04:51 PM   #5
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Did you ever get this sorted out?
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      02-21-2018, 03:09 PM   #6
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did u disconnect battery before install
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      02-21-2018, 06:45 PM   #7
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Disconnect battery. Check connections in the junction box.
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      02-21-2018, 09:29 PM   #8
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Check wires are connected properly inside JB4.

I had same issue and my JB4 was sent to me with the purple wires switched.
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