SBSR 991a & 991d errors

Minton444 · 10-27-2021, 03:43 PM

I have both of these codes SBSR 991a & 991d. I tried to clear them with INPA and ISTA+ . I tried to do the BST bypass by soldering a 2 ohm 2 watt resistor to the black wire coming off the BST and then clearing the codes but they came back. I cleared the codes and then installed a Passenger Seat Occupancy Mat Bypass Emulator but the codes came back. Does anyone know what these codes are and how to get rid of them? Thanks

BMWGirlFL · 10-27-2021, 08:07 PM

Code lookup:

https://bmwfault.codes/

Minton444 · 10-27-2021, 08:19 PM

Quote:

Originally Posted by BMWGirlFL

Code lookup:

https://bmwfault.codes/

Thanks, I already know the codes. I need to know how to fix them.

BMWGirlFL · 10-27-2021, 08:27 PM

I don't actually know anything. Sorry!

Minton444 · 10-27-2021, 08:28 PM

Quote:

Originally Posted by BMWGirlFL

I don't actually know anything. Sorry!

No worries but thank you anyways!

Nodi19 · 05-28-2025, 07:45 AM

Quote:

Originally Posted by Minton444

I have both of these codes SBSR 991a & 991d. I tried to clear them with INPA and ISTA+ . I tried to do the BST bypass by soldering a 2 ohm 2 watt resistor to the black wire coming off the BST and then clearing the codes but they came back. I cleared the codes and then installed a Passenger Seat Occupancy Mat Bypass Emulator but the codes came back. Does anyone know what these codes are and how to get rid of them? Thanks

Hi! Did you manage to solve the problem?

10-27-2021, 03:43 PM	#1
Minton444 Private 11 Rep 81 Posts Drives: 2006 525xi e60 Join Date: Aug 2021 Location: Columbus, Ohio iTrader: (0)	SBSR 991a & 991d errors I have both of these codes SBSR 991a & 991d. I tried to clear them with INPA and ISTA+ . I tried to do the BST bypass by soldering a 2 ohm 2 watt resistor to the black wire coming off the BST and then clearing the codes but they came back. I cleared the codes and then installed a Passenger Seat Occupancy Mat Bypass Emulator but the codes came back. Does anyone know what these codes are and how to get rid of them? Thanks
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10-27-2021, 08:07 PM	#2
BMWGirlFL Colonel 7160 Rep 2,563 Posts Drives: Z4 M40i Join Date: Jan 2019 Location: South Florida iTrader: (0) Garage List 2020 Z4 M40i [9.90] 1989 325is (Retired) [9.25]	Code lookup: https://bmwfault.codes/
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10-27-2021, 08:27 PM	#4
BMWGirlFL Colonel 7160 Rep 2,563 Posts Drives: Z4 M40i Join Date: Jan 2019 Location: South Florida iTrader: (0) Garage List 2020 Z4 M40i [9.90] 1989 325is (Retired) [9.25]	I don't actually know anything. Sorry!
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