Stop start error linked to airbag control module?

[Newconclusion]

Hi, I've had a stop start error on my Tourer for a number of months now. Prior to this ,the airbag warning light was on for a week and that turned off and I got the stop start error. When this appeared, I had the following issues:

- cruise control does not work
- front passenger and drivers side door do not lock with the central locking button on the door card, but rear ones do
- passenger airbag light is always off, even when turning the car on, or if the airbag is turned off, there is no light indicating such.

Obdeleven through out loads of errors, but failed to connect to the airbag control module. I get the following error codes, can anybody advise what it might be:

Car: Seat Leon
Year: 2014
Body type: Sports Tourer
---------------------------------------------------------------
Full scan
Control Units: 13
Fault count: 14
Control Units:
5F Multimedia
System description: MU-S-ND-ER
Software number: 5F0035858A
Software version: 0425
Hardware number: 5F0035858A
Hardware version: 040
Serial number: E5F00904141981
ODX name: EV_MUStd6C1PASE
ODX version: 002030
Faults:
U112100 - Databus missing message
static


55 Headlight Regulation
System description: LWR-ECU
Software number: 5Q0907357
Software version: 0080
Hardware number: 6R0907357A
Hardware version: 005
Serial number: --------------
ODX name: EV_HeadlRegulVWLWRMQB
ODX version: 001110
Faults:
U112100 - Databus missing message
static


52 Passenger Door
System description: TSG BFS
Software number: 5Q4959592B
Software version: 0014
Hardware number: 5Q4959592B
Hardware version: 009
Serial number: 0000097589783
ODX name: EV_DCUPasseSideEWMAXCONT
ODX version: 006001
Faults:
- Unknown
static


44 Steering Assistance
System description: EPS_MQB_ZFLS
Software number: 5Q0909144P
Software version: 1043
Hardware number: 5Q0909144P
Hardware version: 122
ODX name: EV_SteerAssisMQB
ODX version: 010031
Faults:
No trouble codes found


42 Driver Door
System description: TSG FS
Software number: 5Q4959593B
Software version: 0014
Hardware number: 5Q4959593B
Hardware version: 009
Serial number: 0000097380211
ODX name: EV_DCUDriveSideEWMAXCONT
ODX version: 006001
Faults:
- Unknown
static


19 Gateway
System description: GW MQB High
Software number: 5Q0907530Q
Software version: 1164
Hardware number: 5Q0907530F
Hardware version: 125
Serial number: 0003987328
ODX name: EV_GatewLear
ODX version: 010015
Faults:
- Unknown
static


17 Dashboard
System description: KOMBI
Software number: 5F0920971H
Software version: 2210
Hardware number: 5F0920971H
Hardware version: 303
ODX name: EV_DashBoardVDDMQBAB
ODX version: 008031
Faults:
U112100 - Databus missing message
static


16 Steering Column
System description: Lenks. Modul
Software number: 5Q0953507AC
Software version: 0070
Hardware number: 5Q0953549
Hardware version: 007
Serial number: 09041404220933
ODX name: EV_SMLSKLOMQB
ODX version: 009001
Faults:
No trouble codes found


09 Central Electrics
System description: BCM MQBAB H
Software number: 5Q0937084AE
Software version: 0124
Hardware number: 5Q0937084AE
Hardware version: H16
Serial number: 00011408801114
ODX name: EV_BCMCONTI
ODX version: 012001
Faults:
U112100 - Databus missing message
static
U112100 - Databus missing message
static


08 Air Conditioning
System description: AC Manuell
Software number: 5F0907426H
Software version: 0705
Hardware number: 5F0907426H
Hardware version: H01
ODX name: EV_ACManueBHBVW37X
ODX version: 003017
Faults:
U112100 - Databus missing message
static


03 Brakes
System description: EMB8 EHCB
Software number: 5Q0907379R
Software version: 0356
Hardware number: 5Q0907379F
Hardware version: H31
Serial number: 6091400000084A
ODX name: EV_Brake1UDSContiMK100ESP
ODX version: 033001
Faults:
U112100 - Databus missing message
static
U112100 - Databus missing message
static
U112100 - Databus missing message
static
C102D00 - Tire pressure warning
static


01 Engine
System description: R4 1,6L EDC
Software number: 04L906021FD
Software version: 8122
Hardware number: 04L907309E
Hardware version: H22
ODX name: EV_ECM16TDI01104L906021FD
ODX version: 002008
Faults:
U015100 - Lost Communication With Restraints Control Module
static
Mileage: 141424 km
Date: 2022-11-05 16:36"

 

[mty12345]

Have you changed the coding of any modules via OBDeleven, if so and you have the default settings then try reverting back. If not then i'd guess it's probably that the airbag/restraints module has a fault. If you're good with a multimeter then you may want to check you have power and grounds to the airbag module. Have you checked it's not just a fuse?

 

[Newconclusion]

Have you changed the coding of any modules via OBDeleven, if so and you have the default settings then try reverting back. If not then i'd guess it's probably that the airbag/restraints module has a fault. If you're good with a multimeter then you may want to check you have power and grounds to the airbag module. Have you checked it's not just a fuse?

Nope, didn't change anything via Obdeleven. I took the car the my local garage previously and they couldn't connect to it either.

Where would I find the airbag module? I presume it's under the passanger side seat?

I haven't checked the fuse yet, good shout, will check.

 

[LeylandVCDS]

Whatever you do, don't start messing about with a multimeter on the airbag module. One short and your airbags will deploy. Get it sorted properly by someone who knows what they are doing
The system doesn't have a specific fuse, it is controlled by the body control module