After OTA "upgrade" persistent "Acoustic Pedestrian Protection" warning message

RC_Hund · 01-15-2023, 03:09 PM

I let the system upgrade to the new software version and now have a persistent "Acoustic Pedestrian Protection warning failure" message.

I did install a Bimmer-Tech Match PP86DSP amplifier in late '21.
The only thing that I can think of that might contribute to the error message.
I don't even recall hearing the pedestrian warning before the amp install, so maybe there is an issue and the new software update is just now flagging this problem.

Ideas?

OK: After some more research and searching of the forums, this appears to be a known issue and Bimmer-tech has a fix for it.

TurtleBoy · 01-15-2023, 05:31 PM

We have had another member report this issue and they installed an aftermarket amp also.

https://g05.bimmerpost.com/forums/sh...1#post29734901

temoore48 · 01-16-2023, 10:37 AM

Bimmertech amp as well. I am scheduling appointment w/ BMW service, see what they can do.

weinerbarn · 01-16-2023, 11:11 AM

Quote:

Originally Posted by temoore48

Bimmertech amp as well. I am scheduling appointment w/ BMW service, see what they can do.

If it's interfering with the CAN bus messaging and throwing errors, I'm pretty sure the answer is going to be "Disconnect the aftermarket accessory causing the issue". You're probably better off contacting Bimmertech and seeing if they can update the firmware on the amp for compatibility.

MaximK · 01-16-2023, 11:20 AM

There is a new data realeased , maybe ask dealer update again , could be a system bug

RC_Hund · 01-16-2023, 12:56 PM

Found a thread from last year about people having this issue with the bimmer-tech amp and that bimmer-tech has a new cable which they can send out.

https://g05.bimmerpost.com/forums/sh...ght=focal+subs

Quote:

Originally Posted by temoore48

Bimmertech amp as well. I am scheduling appointment w/ BMW service, see what they can do.

temoore48 · 01-16-2023, 01:12 PM

Quote:

Originally Posted by RC_Hund

Found a thread from last year about people having this issue with the bimmer-tech amp and that bimmer-tech has a new cable which they can send out.

https://g05.bimmerpost.com/forums/sh...ght=focal+subs

Thanks! I have emailed their support requesting a cable. Hate to have uninstall / install as it was a minor hassle.

bandersen · 01-17-2023, 08:35 PM

The threads seemed to be (as far as I can tell) only an issue with the 45e. Anyone having issues with a 40 or 50?

SenmaS · 01-18-2023, 05:20 AM

It's only Hybrids & electrics that would be affected. Combustion engines don't have acoustic pedestrian warning.

temoore48 · 01-19-2023, 05:56 PM

I have a 4.5. and get the message. Bimmertech is sending a new connector (26 wires). The original has 22, apparently fine except for the 4.5e.

RC_Hund · 01-30-2023, 11:29 AM

Received my updated harness and installed yesterday. Took about half an hour total because I wanted to check on the input sensitivity setting.
See if it could go louder... Turns out I had it already set to max.

01-15-2023, 03:09 PM	#1
RC_Hund Private 61 Rep 82 Posts Drives: 2022 X5 45e Join Date: Apr 2021 Location: East Bay, CA iTrader: (0) Garage List [0.00]	After OTA "upgrade" persistent "Acoustic Pedestrian Protection" warning message I let the system upgrade to the new software version and now have a persistent "Acoustic Pedestrian Protection warning failure" message. I did install a Bimmer-Tech Match PP86DSP amplifier in late '21. The only thing that I can think of that might contribute to the error message. I don't even recall hearing the pedestrian warning before the amp install, so maybe there is an issue and the new software update is just now flagging this problem. Ideas? OK: After some more research and searching of the forums, this appears to be a known issue and Bimmer-tech has a fix for it. Last edited by RC_Hund; 01-16-2023 at 02:25 PM..
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01-15-2023, 05:31 PM	#2
TurtleBoy General 13504 Rep 20,122 Posts Drives: 2019 X5 40i,2021 M340i Join Date: Jan 2019 Location: Colorado iTrader: (0)	We have had another member report this issue and they installed an aftermarket amp also. https://g05.bimmerpost.com/forums/sh...1#post29734901 __________________ 2021 BMW G20 M340i xDrive - Verde Ermes/Black - 03/2024.40 2019 BMW G05 X5 xDrive40i - Phytonic Blue/Cognac - 11/2023.50
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01-16-2023, 10:37 AM	#3
temoore48 Private 42 Rep 75 Posts Drives: 2022 X5 4.5e Join Date: May 2015 Location: Newcastle, WA iTrader: (0) Garage List 2022 BMW X5 [0.00]	Same problem here Bimmertech amp as well. I am scheduling appointment w/ BMW service, see what they can do. __________________ TE Moore
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01-16-2023, 11:20 AM	#5
MaximK Private 25 Rep 97 Posts Drives: F10- Bimmer Works Car Join Date: Jan 2023 Location: BIMMERWORKS.RO iTrader: (0)	There is a new data realeased , maybe ask dealer update again , could be a system bug
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01-17-2023, 08:35 PM	#8
bandersen Captain 599 Rep 817 Posts Drives: MY22 X5 40I M-Sport Join Date: Oct 2013 Location: Philadelphia iTrader: (0)	The threads seemed to be (as far as I can tell) only an issue with the 45e. Anyone having issues with a 40 or 50?
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01-18-2023, 05:20 AM	#9
SenmaS New Member 9 Rep 15 Posts Drives: BMW Join Date: Sep 2020 Location: Orlando iTrader: (0)	It's only Hybrids & electrics that would be affected. Combustion engines don't have acoustic pedestrian warning.
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01-19-2023, 05:56 PM	#10
temoore48 Private 42 Rep 75 Posts Drives: 2022 X5 4.5e Join Date: May 2015 Location: Newcastle, WA iTrader: (0) Garage List 2022 BMW X5 [0.00]	Bimmertech sending revised connector I have a 4.5. and get the message. Bimmertech is sending a new connector (26 wires). The original has 22, apparently fine except for the 4.5e. __________________ TE Moore
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01-30-2023, 11:29 AM	#11
RC_Hund Private 61 Rep 82 Posts Drives: 2022 X5 45e Join Date: Apr 2021 Location: East Bay, CA iTrader: (0) Garage List [0.00]	Received my updated harness and installed yesterday. Took about half an hour total because I wanted to check on the input sensitivity setting. See if it could go louder... Turns out I had it already set to max.
	Appreciate 0 Quote