Case Study B13BC - Multiple collision brake: No function

[Jef]

ST?ID=91869

2019 Q5, hit pothole, rack was damage and replaced. Airbag has B13BC. ODIS run on it several tries, no luck.

We tried airbag Basic Settings Reset analysis measured values and from that, the B13BC went from a hard code to intermittent and was able to clear out.

 

[Jef]

TSD?ID=121275

2018 Q5, similar story, some mishap but no airbags deployed, power steering rack busted up and replaced. Airbag had the same B13BC - Multiple collision brake: No function. Fresh key cycle, went into airbag and did Basic Settings "Calibrate installation location". He George didn't notice finished correctly, just not running. [Stop] and backed out of Basic Settings and was able to clear the code out.

So.... is this a fault code to expect when replacing the J500?

 

[NEtech]

Jef, do you have the complete DTC text ?

 

[Dana]

Hi Niels,

We don't have scans from either of those example cars however this recent one has that B13BC DTC in 15-Airbags:
https://forums.ross-tech.com/showth...tiple-fault-codes-after-tire-change-alignment

I *believe* B13BC F2 [137] Multiple collision brake: No function would have been stored in Jef's example cars (because it is often stored after alignments and repairs including new 16 modules) however I found other examples in our scans.

B13BC F1 [009] Multiple collision brake: triggered (Chassis Type: FS (8U0) scan)
B13BC F3 [009] Multiple Collision Brake: Function Disabled by Driver (same Chassis Type: FS (8U0 scan)

There's also a B13BC Multiple collision brake: Crash data stored but I don't have scans to obtain the complete DTC info.

 

[Jef]

ST?ID=106861

4N0 959 655 K

2019 A6, airbag has:
B13BC Multiple collision brake: Crash data stored

Basic Settings IDE13545-ENG167462 Reset analysis measured values
Get a error for Security Access required. Exit out, ignition cycle, Security Access gives a pop up window with a code, accepted. Try the Basic Settings, again, SA required message. We try this a few times.. and hey, the airbag light is going out now when the ignition is cycled back on... the B13BC was now able to be cleared out.

Never got a "Finished Correctly" or "OK" type message, just nag about Security Access. Mission failed successfully.

 

[servis-sk]

Hi.
I am also solving the problem on the A4/B9 year 2016, how to turn off the airbag light.
There is a "collision brake" problem, and the problem of some "Databuses"
Do not notice the driver's airbag, it was disconnected during the scan because I was changing the steering wheel ring.
The car was after a partial collision, the front lights, mask and radiator were broken
How can it be solved? delete?.

Thanks for the help

Address 15: Airbags (J234)       Labels:| 8W0-959-655.clb
   Part No SW: 8W0 959 655 B    HW: 8W0 959 655 B
   Component: Airbag10.44   H56 0084 
   Serial number: 003QQ0001EWG Dataset Number: 8W0909602N  0002
   Coding: AECCF0C00C800000985400F3C04C00000000
   Shop #: WSC 06335 790 00001
   ASAM Dataset: EV_AirbaAU10BPAAU736 005012
   ROD: EV_AirbaAU10BPAAU736_005.rod
   VCID: 48C8A695B230B02A873-801C

   Left seat belt tensioner:
   Subsystem 1 - Part No SW: 4M0 980 945     HW: 4M0 980 945
   Component: BeltPretRevFL  205 2033
   Serial number: 8W0857705A0102Q00840
   Coding: 88001B

   Right seat belt tensioner:
   Subsystem 2 - Part No SW: 4M0 980 946     HW: 4M0 980 946
   Component: BeltPretRevFR  205 2033
   Serial number: 8W0857706A0103Q00517
   Coding: 88001B

   Crash sensor for side airbag: driver side:
   Subsystem 3 - Part No SW: -----------    HW: 442 062 809 15
   Component: SideSensor_Df  1E2 0887
   Serial number: 3577Y00C71A537D2112Y
   Coding: 2D2D2D

   Front Passenger's Side Airbag Crash Sensor:
   Subsystem 4 - Part No SW: -----------    HW: 442 062 309 15
   Component: SideSensor_Pf  1E2 0887
   Serial number: 3587Y00B11A537E2207Y
   Coding: 2D2D2D

   Rear Side Airbag Crash Sensor (on driver's side):
   Subsystem 5 - Part No SW: -----------    HW: 442 0B2 409 15
   Component: SideSensor_Dr  1C7 0148
   Serial number: 351770020293A827157-
   Coding: 2D2D2D

   Passenger side rear thorax airbag crash sensor:
   Subsystem 6 - Part No SW: -----------    HW: 442 0B2 409 15
   Component: SideSensor_Pr  1C7 0148
   Serial number: 35277001E293A827C4EO
   Coding: 2D2D2D

   Crash sensor for front airbag: driver side:
   Subsystem 7 - Part No SW: -----------    HW: 442 0C3 103 16
   Component: FrontSensor_D  1C5 014A
   Serial number: 3557500C12057263F383
   Coding: 2D2D2D

   Crash sensor for front airbag: front passenger side:
   Subsystem 8 - Part No SW: -----------    HW: 442 0C3 103 16
   Component: FrontSensor_P  1C5 014A
   Serial number: 3567500C12057266038Z
   Coding: 2D2D2D

   Center pedestrian protection crash sensor:
   Subsystem 9 - Part No SW: -----------    HW: 442 0C3 103 16
   Component: PedP_Sensor_C  1C5 014A
   Serial number: 2307500C52057262115M
   Coding: 2D2D2D

   Driver's side crash data pedestrian protection 2:
   Subsystem 10 - Part No SW: -----------    HW: 442 430 103 16
   Component: PedPSensor_D2  256 0887
   Serial number: I0M9M00C51B1C0E400BD
   Coding: 2D2D2D

   Passenger's side crash data pedestrian protection 2:
   Subsystem 11 - Part No SW: -----------    HW: 442 430 103 16
   Component: PedPSensor_P2  256 0887
   Serial number: I0N9M00C51B1C0E3B1FT
   Coding: 2D2D2D

9 Faults Found:
9437211 - Igniter for Driver's Airbag
          B1000 1B [137] - Resistance Too High
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:01

9571867 - Ignitor for Drivers Airbag Release Valve
          B120E 1B [137] - Resistance Too High
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 1
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:01

9682162 - Multiple collision brake
          B13BC F2 [137] - No function
          MIL ON - Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 2
                    Fault Frequency: 4
                    Reset counter: 58
                    Mileage: 244171 km
                    Date: 2023.02.04
                    Time: 03:37:29

1050117 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0x086 LWI_01 error value LWI_Lenkradwinkel]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:18:59

1061893 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0x0A0 LH_EPS_04 error value EPS_Zahnstangen_Pos]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:00

1060613 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0xTBD SDF_PSF_01 error value SDF_PSF_Objektstatus]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:00

1060614 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0xTBD SDF_PSF_01 error value SDF_PSF_Time_To_Collision]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:00

1060615 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0xTBD SDF_PSF_01 error value SDF_PSF_v_rel]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:00

1060617 - Databus
          U1123 00 [009] - Received Error Message
          [NWD: 0xTBD SDF_PSF_01 error value SDF_PSF_CW]
          Confirmed - Tested Since Memory Clear
             Freeze Frame:
                    Fault Status: 00000001
                    Fault Priority: 6
                    Fault Frequency: 1
                    Reset counter: 59
                    Mileage: 244195 km
                    Date: 2023.06.14
                    Time: 21:19:00

 

[servis-sk]

Hello.
Can anyone think of anything? I can't delete B13BC and make the basic settings in group 15 airbags?
I still have an unsuccessful attempt, because I don't have, I don't know, the security access code.
Or do you have a specific procedure?
Thanks for the help

 

[Jef]

ST?ID=111327

2020 A5 - Another busted up J500 due to some unplanned off road adventure. J500 replaced and coded.

Address 15: Airbags (J234) Labels:| 8W0-959-655.clb
Part No SW: 8W0 959 655 N HW: 8W0 959 655 N
Component: Airbag10.44 H09 0109

1 Fault Found:
9682162 - Multiple collision brake
B13BC F2 [10001001] - No function

Basic Setting:
IDE03567-ENG167462 - Calibrate installation location

Was getting the "Finished Correctly" statement, but the codes would not clear out. Then the ABS has new DTCs:

4529411 - Multi-Axis Accelerometer in Airbag Control Module C051D 00 [10100111] - Not Calibrated

Fix seem to be to lock the car up for +1 minute (cranky baby needs a nap), after that, was able to get DTCs to clear out of 03, 15 and 44. No warning lights now.

 

[S4Phil]

ST?ID=111327

2020 A5 - Another busted up J500 due to some unplanned off road adventure. J500 replaced and coded.

Address 15: Airbags (J234) Labels:| 8W0-959-655.clb
Part No SW: 8W0 959 655 N HW: 8W0 959 655 N
Component: Airbag10.44 H09 0109

1 Fault Found:
9682162 - Multiple collision brake
B13BC F2 [10001001] - No function

Basic Setting:
IDE03567-ENG167462 - Calibrate installation location

Was getting the "Finished Correctly" statement, but the codes would not clear out. Then the ABS has new DTCs:

4529411 - Multi-Axis Accelerometer in Airbag Control Module C051D 00 [10100111] - Not Calibrated

Fix seem to be to lock the car up for +1 minute (cranky baby needs a nap), after that, was able to get DTCs to clear out of 03, 15 and 44. No warning lights now.

This worked perfectly for me, as described above (Thanks Jef)

Car was a 2021 Audi A5 35 TDI MHEV, airbag module details below.

Address 15: Airbags (J234) Labels:| 8W0-959-655.clb
Part No SW: 8W0 959 655 P HW: 8W0 959 655 P
Component: Airbag10.44 H03 0122


We weren't even working on the airbags or ABS, but the engine control unit had to be removed as part of a repair in that area. On reconnecting everything and first ignition cycle we had the B13BC F2 fault permanently logged in the Airbag ECU and unable to clear it.

Carried out the calibration in Basic settings - IDE03567-ENG167462 - Calibrate installation location

It finished very quickly, stating 'finished correctly', then 'not running'.

Locked the car and left it for 5 minutes, then we were able to clear out the logged faults in ABS, Airbag & Steering Assist modules.

 

[Jef]

ST?ID=113908

2018 SQ5, auction car, so no known history.... I can't find anything that implies it took an unplanned off road adventure (crashed).

Airbag:
9682162 - Multiple collision brake
B13BC F2 [10001001] - No function

So this was doing some Security Access and then Basic Settings:

• IDE03567-ENG167462-Calibrate installation location
• IDE13545-ENG167462-Reset analysis measured value

IDE03567-ENG167462-Calibrate installation location would run briefly and then not running...
IDE13545-ENG167462-Reset analysis measured value was ask for Security Access.

So after a few times of stumbling through those 2 basic settings, the code did clear out, but there was a yellow triangle warning in the cluster, but no relevant DTCs. Tech locked the car up and came back 30 mninutes later, no more yellow triangle warning light.... so some cars will need a bit of an extended nap.