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BMW 3-Series (E90 E92) Forum
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2E8E IBS, Communication
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06-07-2016, 09:15 PM | #1 |
Second Lieutenant
66
Rep 222
Posts |
2E8E IBS, Communication
Hello,
I scan my car and get this code with no apparent side effects. After my car sits for a few days the battery always struggles to start it up and after one start it always starts quickly and easily. It's a fairly new battery so I figure I might as well replace IBS as that may be a factor. Regardless, I get a new IBS from the dealership. The new part is updated and looks a bit different. Requires an adaptor harness to fit. I install everything, clear codes and run a full scan again and come up with the same error code: 2E8E. After replacing the IBS itself, anyone have any idea on what could be causing this? By the way, don't lose the nut for the negative battery cable. http://www.e90post.com/forums/showthread.php?t=1270739 Thanks, Simon |
06-13-2016, 04:03 PM | #2 |
Captain
238
Rep 947
Posts |
There is most likely something wrong with the BSD line going to the alternator/DME. The Bit Serial Data line is the comm line used for communication between the DME, alternator, and IBS sensor.
Check to make sure there are no shorts along that line. |
Appreciate
1
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06-13-2016, 08:15 PM | #3 |
Second Lieutenant
66
Rep 222
Posts |
Thank you for the tip! Is small blue connector with two wires running back? Or the larger connector that goes in the (what I think is the) battery safety terminal?
Simon |
Appreciate
0
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