ZGM Flexray Synchronisation failure

AlpineX · 09-27-2018, 12:11 PM

I am having an intermittent Flexray synchronisation failure that is causing my ZGM module to store a fault (17 instances according to Ista). SA is saying that he cannot look at "electrical gremlins" until it causes an issue. Anyone else seen Flexray synchronisation faults? This is on F31. Thanks in advance.

F32Fleet · 10-05-2018, 06:51 AM

Quote:

Originally Posted by AlpineX

I am having an intermittent Flexray synchronisation failure that is causing my ZGM module to store a fault (17 instances according to Ista). SA is saying that he cannot look at "electrical gremlins" until it causes an issue. Anyone else seen Flexray synchronisation faults? This is on F31. Thanks in advance.

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Sanelko · 10-05-2018, 09:58 AM

I've done a ton of retrofits and mods to my car and I see this one pop up all the time on ISTA as well. I haven't noticed any symptoms as a result of it so I just ignore it, but if you do find out please report back here.

BimmerSI · 02-24-2019, 04:21 PM

Just reading some old posts and found this one. I have F31 and noticed the same Flexrey sync issue. I believe it was only if I connected Ista with ignition on and car not running. When car was running and then ista was connected no issue was detected.

Polo08816 · 02-25-2019, 03:19 AM

Quote:

Originally Posted by AlpineX

I am having an intermittent Flexray synchronisation failure that is causing my ZGM module to store a fault (17 instances according to Ista). SA is saying that he cannot look at "electrical gremlins" until it causes an issue. Anyone else seen Flexray synchronisation faults? This is on F31. Thanks in advance.

It's normal. It happens when you connect ISTA to the vehicle. I would not consider it a "real" fault code.

AlpineX · 03-05-2019, 03:19 PM

Thanks for the followup.

I wondered if it was related to ISTA, but I recall having some mileage stamps where I knew I was not connected, so I dismissed the idea. That car is gone now, will see if it pops up on the ole replacement.

AKRM2C · 08-22-2021, 07:10 AM

hi, probably its a bit late...

i also have an intermittent fault ZGM. Flexray synchronization process failed. would it be an issue?

09-27-2018, 12:11 PM	#1
AlpineX Captain 247 Rep 776 Posts Drives: Diesel Join Date: Sep 2015 Location: US iTrader: (0)	ZGM Flexray Synchronisation failure I am having an intermittent Flexray synchronisation failure that is causing my ZGM module to store a fault (17 instances according to Ista). SA is saying that he cannot look at "electrical gremlins" until it causes an issue. Anyone else seen Flexray synchronisation faults? This is on F31. Thanks in advance.
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10-05-2018, 09:58 AM	#3
Sanelko Second Lieutenant 70 Rep 235 Posts Drives: 2012 Jet Black 328i Join Date: Jan 2016 Location: Seattle iTrader: (0)	I've done a ton of retrofits and mods to my car and I see this one pop up all the time on ISTA as well. I haven't noticed any symptoms as a result of it so I just ignore it, but if you do find out please report back here.
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02-24-2019, 04:21 PM	#4
BimmerSI Private 30 Rep 60 Posts Drives: F15 xdrive30d, F10 520d, i3 Join Date: Jun 2017 Location: Slovenia iTrader: (0)	Just reading some old posts and found this one. I have F31 and noticed the same Flexrey sync issue. I believe it was only if I connected Ista with ignition on and car not running. When car was running and then ista was connected no issue was detected.
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03-05-2019, 03:19 PM	#6
AlpineX Captain 247 Rep 776 Posts Drives: Diesel Join Date: Sep 2015 Location: US iTrader: (0)	Thanks for the followup. I wondered if it was related to ISTA, but I recall having some mileage stamps where I knew I was not connected, so I dismissed the idea. That car is gone now, will see if it pops up on the ole replacement.
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08-22-2021, 07:10 AM	#7
AKRM2C Just an F Series Owner 22 Rep 67 Posts Drives: 2020 BMW M2 Competition Join Date: May 2021 Location: Jakarta, Indonesia iTrader: (0)	hi, probably its a bit late... i also have an intermittent fault ZGM. Flexray synchronization process failed. would it be an issue?
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