Data bus message missing

Newconclusion

Active Member
Oct 26, 2022
18
2
Hi, I've got the error codes below, majority of them are databus message is messing. Any idea what it could be? My cruise control isn't working either. I've ordered a replacement RCM/airbag control module as I can't connect to it but now I'm thinking it's probably not that:

Car: Seat Leon
Year: 2014
Body type: Sports Tourer

Engine control module
U042800 Steering angle sensor Range/performance Active/static

U015100 Lost Communication With Restraints Control Module
Active/static

Brakes
B116816 Steering angle sensor Voltage too low
Active/static

U112100 Data bus message missing Active/static

Air conditioning
U112100 Data bus message missing Active/static

Electronic central electric
B12C615 Bulb for high-mount brake light Open circuit/short circuit to B+ Passive/Sporadic

B126301 "Tank lid unlock activation
Electrical error" Active/static

U112100 Data bus message missing Active/static

Instrument cluster
U112100 Data bus message missing Active/static

Gateway
U015100 Lost Communication With Restraints Control Module Active/static

Driver's door electronics
U112100 Data bus message missing Active/static

Power Steering
U112300 Databus error value received Passive/Sporadic

B1168F2 Steering angle sensor no initialization Passive/Sporadic

Passenger's door electronics
U112100 Data bus message missing Active/static

Headlight Regulation
U112100 Data bus message missing Active/static

Information electronics 1
U112100 Data bus message missing Active/static
 

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Walone

Active Member
Feb 10, 2016
1,538
421
Near Heathrow
Hi, I've got the error codes below, majority of them are databus message is messing. Any idea what it could be? My cruise control isn't working either. I've ordered a replacement RCM/airbag control module as I can't connect to it but now I'm thinking it's probably not that:

Car: Seat Leon
Year: 2014
Body type: Sports Tourer

Engine control module
U042800 Steering angle sensor Range/performance Active/static

U015100 Lost Communication With Restraints Control Module
Active/static

Brakes
B116816 Steering angle sensor Voltage too low
Active/static

U112100 Data bus message missing Active/static

Air conditioning
U112100 Data bus message missing Active/static

Electronic central electric
B12C615 Bulb for high-mount brake light Open circuit/short circuit to B+ Passive/Sporadic

B126301 "Tank lid unlock activation
Electrical error" Active/static

U112100 Data bus message missing Active/static

Instrument cluster
U112100 Data bus message missing Active/static

Gateway
U015100 Lost Communication With Restraints Control Module Active/static

Driver's door electronics
U112100 Data bus message missing Active/static

Power Steering
U112300 Databus error value received Passive/Sporadic

B1168F2 Steering angle sensor no initialization Passive/Sporadic

Passenger's door electronics
U112100 Data bus message missing Active/static

Headlight Regulation
U112100 Data bus message missing Active/static

Information electronics 1
U112100 Data bus message missing Active/static
As @RUM4MO says could be battery as vehicle is quite old.
Not sure how good Autel is for Vw/Audi group cars, do you have access to VCDS or OBDeleven device?
With all those errors maybe it's the BCM?
 

Newconclusion

Active Member
Oct 26, 2022
18
2
Unfortunately no access to vcds but obdeleven pretty much gave me the same codes.

I did have the battery tested back in Feb or march and it was fine. I'll arrange for it to be checked again
 

Newconclusion

Active Member
Oct 26, 2022
18
2
So got the battery tested today and the battery is "good", no issues. The mechanic did say it needs a recharge but the car is used often, occasion motorway driving too, so I am not sure it's the battery anymore.

Not sure where to go from here, shall I get a new ECU/BCM, or even an airbag module?
 

adam davies

Active Member
Dec 30, 2019
338
138
So got the battery tested today and the battery is "good", no issues. The mechanic did say it needs a recharge but the car is used often, occasion motorway driving too, so I am not sure it's the battery anymore.

Not sure where to go from here, shall I get a new ECU/BCM, or even an airbag module?
Thats a bizzare answer from a mechanic to be honest , battery is good but needs a recharge?.
If the battery is on the car and the battery voltage is low you have a charging issue. If i were you take it too a vw specialist if you are not sure yourself.
 

Newconclusion

Active Member
Oct 26, 2022
18
2
I thought the same thing, surely the battery would charge with normal driving and if not then there is a problem with it?

I'm gonna check the steering angle sensor and the tank lid error to see if they fix the cruise control and/or locking issue. The airbag issue is concerning though as I'm worried they may not deploy in the event of an accident
 

adam davies

Active Member
Dec 30, 2019
338
138
I thought the same thing, surely the battery would charge with normal driving and if not then there is a problem with it?

I'm gonna check the steering angle sensor and the tank lid error to see if they fix the cruise control and/or locking issue. The airbag issue is concerning though as I'm worried they may not deploy in the event of an accident
Forget the other faults untill you have established a good battery, a good alternator and that it is charging.
 

Newconclusion

Active Member
Oct 26, 2022
18
2
Booked in for another battery test tomorrow with a different garage. May even try putting it on charge for a bit and rerunning diagnostic.

If that fails then probably will resort to VW specialist
 
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