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Solved ✔ BMW F11 IBS problem, no 12V wake up
02-08-2022, 16:15 PM,
Post: #12
RE: BMW F11 IBS problem, no 12V wake up
(02-08-2022, 14:36 PM)Node Wrote:  You need to find out which unit EXACTLY reports that fault. Wakeup line DOES NOT END at JBBF. It goes to many other units after it depending on car year, engine type, etc.

The short circuit to B + error does not always appear. I attached a screenshot of ISTA. Please take a look.


Sometimes, after erasing the errors, only the LIN error, that is communication with DDE, appears and it is a permanent error. Sometimes there is also an error from JBBF about shorting to B +.

As I wrote in the first post, LIN has the correct value of 9V, terminal 30 gives 12V. Only JBBF's WakeUp doesn't show up at all.


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Messages In This Thread
BMW F11 IBS problem, no 12V wake up - by mmwmmw - 02-08-2022, 10:45 AM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 11:40 AM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 11:54 AM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 14:25 PM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 14:36 PM
RE: BMW F11 IBS problem, no 12V wake up - by mmwmmw - 02-08-2022, 16:15 PM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 16:35 PM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 16:46 PM
RE: BMW F11 IBS problem, no 12V wake up - by Node - 02-08-2022, 17:11 PM

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