Getting loads of errors intermittently

[andyb952]

I have been having some issues with my RS5 for a little while now, intermittently I will get what seems like every warning/error message appear on the dash, to name a few... Sport Differential/Auto stop start/Parking brake/steering/pre-sense/TPMS/ESC/Start system/system fault can't remember them all, but you get the point.

These will clear themselves after I drive for a bit and turn off/on the engine, they happen sometimes before the car has started, sometimes whilst driving, cold weather, hot weather, dry, wet, sensible driving, sporty driving, it doesn't really have anything in common each time it happens.

I spoke with a friend who runs his own workshop and he plugged it in to his diagnostics, there were errors all over the place, mainly things like U112100 Databus missing message or U112300 Databus error value received. I have attached a report of all the errors that he logged.

He seems to think that it may be a faulty connection somewhere which is why it's so intermittent, I have gone over a bump in the road a few times and it started breaking so kind of makes sense.

Any other ideas on this, absolutely stumped at the moment.

Thanks in advance

2023102616092231035 (1).pdf

 
Shop Name: N/A
Telephone: N/A

SN:
Email: N/A

Service Fee: USD
Repair Order No: N/A

Address:
City: N/A

State/County: N/A
Country or region: N/A

Zip Code: N/A
Notes: N/A


 
Make: Audi
Model: N/A

Year: 2019
Displacement: N/A

VIN:
Odometer: 20000 miles

Registration No.
Vehicle Software Version: V10.22



WUAZZZF54KA906012





System(30)
Status(144)

01 Engine Electronics
Fault | 15

02 Transmission Electronics
Fault | 3

03 Brake Electronics
Fault | 20

08 Climate Control Module
Fault | 1

09 Electronic Central Electric
Fault | 6

15 Airbag
Fault | 9

16 Steering Column Electronics Systems
Fault | 3

17 Instrument Cluster
Fault | 2

19 Data Bus OBD Interface
Fault | 2

29 Left Light Control
Fault | 1

2B Steering Column Lock
Fault | 4

32 Differential Lock Electronics
Fault | 8

39 Right Light Control
Fault | 1

3C Lane Change Assistance
Fault | 5

42 Driver's Door Electronics
Fault | 2

44 Power Steering
Fault | 4

46 Comfort System Central Control Module
Fault | 3

52 Passenger's Door Electronics
Fault | 1

5F Information Electronics 1
Fault | 3

6D Rear Lid Electronics
Fault | 1

74 Chassis Control
Fault | 29

81 Selector Lever
Fault | 1

A5 Front Sensor For Drivers Assistant Systems
Fault | 16

A9 Structure-Borne Sound Actuator
Fault | 1

CA Sunroof Control Module
Fault | 1

CF Lane Change Assistant 2
Fault | 2

BB Rear Drivers Side Door Electronics
No Fault

BC Rear Passenger Side Door Electronics
No Fault

D6 Light Control Left 2
No Fault

D7 Light Control Right 2
No Fault


 
ADAS
 
System(3)
Status(23)

3C Lane Change Assistance
Fault | 5

A5 Front Sensor For Drivers Assistant Systems
Fault | 16

CF Lane Change Assistant 2
Fault | 2



DTC
 
System
Code
Description
Status

01 Engine Electronics
U012100
Lost Communication With - Anti-Lock Brake System (ABS) Control Module
Passive/Sporadic

01 Engine Electronics
P048000
Cooling Fan 1 Control Circuit
Passive/Sporadic

01 Engine Electronics
P048100
Cooling Fan 2 Control Circuit
Passive/Sporadic

01 Engine Electronics
U041600
ESP - Implausible Signal
Passive/Sporadic

01 Engine Electronics
U041600
ESP - Implausible Signal
Passive/Sporadic

01 Engine Electronics
P262600
O2 Sensor Pumping Current Trim Circuit/Open Bank 1, Sensor 1
Passive/Sporadic

01 Engine Electronics
P262900
O2 Sensor Pumping Current Trim Circuit/Open Bank 2, Sensor 1
Passive/Sporadic



01 Engine Electronics
U061F00
Lost Communication With Exhaust Gas Temperature Sensor Bank 1 - Sensor 1
Passive/Sporadic

01 Engine Electronics
U062200
Lost Communication With Exhaust Gas Temperature Sensor Bank 2 - Sensor 2
Passive/Sporadic

01 Engine Electronics
U060100
Lost Communication With Particulate Filter Pressure Sensor "A"
Passive/Sporadic

01 Engine Electronics
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

01 Engine Electronics
U008000
Vehicle Communication Bus F
Passive/Sporadic

01 Engine Electronics
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

01 Engine Electronics
P003900
Turbocharger/Supercharger Bypass Valve "A" Control Circuit - Range/Performance
Passive/Sporadic

01 Engine Electronics
P060C00
Internal Control Module Main Processor Performance
Passive/Sporadic

02 Transmission Electronics
U012800
Lost Communication With Brake System Control Module
Passive/Sporadic

02 Transmission Electronics
U012200
Lost Communication With Vehicle Dynamics Control Module
Passive/Sporadic

02 Transmission Electronics
U014100
Lost Communication With Body Control Module "A"
Passive/Sporadic

03 Brake Electronics
U008000
Vehicle Communication Bus F
Passive/Sporadic

03 Brake Electronics
U112100
Databus Missing Message
Passive/Sporadic

03 Brake Electronics
U112100
Databus Missing Message
Passive/Sporadic

03 Brake Electronics
U112300
Databus Error Value Received
Passive/Sporadic

03 Brake Electronics
U012600
Lost Communication With Steering Angle Sensor Module
Passive/Sporadic

03 Brake Electronics
U040100
Invalid Data Received From ECM/PCM "A"
Passive/Sporadic

03 Brake Electronics
C1295F0
Tire Check Indicator / Wheel Loose Detection - Data Implausible
Passive/Sporadic

03 Brake Electronics
U121F00
Implausible All Wheel Drive Control Module
Passive/Sporadic

03 Brake Electronics
U112200
Databus Implausible Message
Passive/Sporadic

03 Brake Electronics
U112100
Databus Missing Message
Passive/Sporadic

03 Brake Electronics
U112100
Databus Missing Message
Passive/Sporadic

03 Brake Electronics
C1254F0
Comfort System Central Control Module - Implausible Brake Light Signal
Passive/Sporadic



03 Brake Electronics
U140000
Function Restriction - Function Restriction Due To Low Voltage
Passive/Sporadic

03 Brake Electronics
U122900
Front Camera For Driver Assistance Systems Implausible
Passive/Sporadic

03 Brake Electronics
U012A00
Lost Communication With Chassis Control Module "A"
Passive/Sporadic

03 Brake Electronics
U015100
Lost Communication With Restraints Control Module
Passive/Sporadic

03 Brake Electronics
U015100
Lost Communication With Restraints Control Module
Passive/Sporadic

03 Brake Electronics
C050000
Left Front Wheel Speed Sensor Circuit/Open
Passive/Sporadic

03 Brake Electronics
C050600
Right Front Wheel Speed Sensor Circuit/Open
Passive/Sporadic

03 Brake Electronics
C051200
Right Rear Wheel Speed Sensor Circuit/Open
Passive/Sporadic

08 Climate Control Module
U112100
Databus Missing Message
Passive/Sporadic

09 Electronic Central Electric
U112100
Databus Missing Message
Passive/Sporadic

09 Electronic Central Electric
U112100
Databus Missing Message
Passive/Sporadic

09 Electronic Central Electric
U116300
Automatic Dimming Interior Mirror - No Communication
Active/Static

09 Electronic Central Electric
U112300
Databus Error Value Received
Passive/Sporadic

09 Electronic Central Electric
U112300
Databus Error Value Received
Passive/Sporadic

09 Electronic Central Electric
U112300
Databus Error Value Received
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

15 Airbag
U112300
Databus Error Value Received
Passive/Sporadic

15 Airbag
U112100
Databus Missing Message
Passive/Sporadic



15 Airbag
U112100
Databus Missing Message
Passive/Sporadic

16 Steering Column Electronics Systems
U112200
Databus Implausible Message
Passive/Sporadic

16 Steering Column Electronics Systems
U112100
Databus Missing Message
Passive/Sporadic

16 Steering Column Electronics Systems
U112100
Databus Missing Message
Passive/Sporadic

17 Instrument Cluster
U112100
Databus Missing Message
Passive/Sporadic

17 Instrument Cluster
U112100
Databus Missing Message
Passive/Sporadic

19 Data Bus OBD Interface
U012100
Lost Communication With - Anti-Lock Brake System (ABS) Control Module
Passive/Sporadic

19 Data Bus OBD Interface
U103200
FlexRay Data Bus - Initialization Failed
Passive/Sporadic

29 Left Light Control
U112100
Databus Missing Message
Passive/Sporadic

2B Steering Column Lock
U112100
Databus Missing Message
Passive/Sporadic

2B Steering Column Lock
U112100
Databus Missing Message
Passive/Sporadic

2B Steering Column Lock
U112300
Databus Error Value Received
Passive/Sporadic

2B Steering Column Lock
U112200
Databus Implausible Message
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

32 Differential Lock Electronics
U112300
Databus Error Value Received
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

32 Differential Lock Electronics
U112300
Databus Error Value Received
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

32 Differential Lock Electronics
U112100
Databus Missing Message
Passive/Sporadic

39 Right Light Control
U112100
Databus Missing Message
Passive/Sporadic

3C Lane Change Assistance
U112300
Databus Error Value Received
Passive/Sporadic



3C Lane Change Assistance
U112300
Databus Error Value Received
Passive/Sporadic

3C Lane Change Assistance
U112300
Databus Error Value Received
Passive/Sporadic

3C Lane Change Assistance
U112300
Databus Error Value Received
Passive/Sporadic

3C Lane Change Assistance
U112100
Databus Missing Message
Passive/Sporadic

42 Driver's Door Electronics
B122B13
Central Locking Motors - Open Circuit
Passive/Sporadic

42 Driver's Door Electronics
U112100
Databus Missing Message
Passive/Sporadic

44 Power Steering
U112300
Databus Error Value Received
Passive/Sporadic

44 Power Steering
U112100
Databus Missing Message
Passive/Sporadic

44 Power Steering
U112100
Databus Missing Message
Passive/Sporadic

44 Power Steering
U112100
Databus Missing Message
Passive/Sporadic

46 Comfort System Central Control Module
U112100
Databus Missing Message
Passive/Sporadic

46 Comfort System Central Control Module
U112100
Databus Missing Message
Passive/Sporadic

46 Comfort System Central Control Module
U112300
Databus Error Value Received
Passive/Sporadic

52 Passenger's Door Electronics
U112100
Databus Missing Message
Passive/Sporadic

5F Information Electronics 1
U112100
Databus Missing Message
Passive/Sporadic

5F Information Electronics 1
U111100
Function Restriction Due To Missing Message
Passive/Sporadic

5F Information Electronics 1
U111100
Function Restriction Due To Missing Message
Passive/Sporadic

6D Rear Lid Electronics
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
B200FF3
Internal Malfunction
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic



74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic



74 Chassis Control
U112100
Databus Missing Message
Passive/Sporadic

81 Selector Lever
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112100
Databus Missing Message
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U112300
Databus Error Value Received
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

A5 Front Sensor For Drivers Assistant Systems
U041500
Invalid Data Received From - Anti-Lock Brake System Control Module
Passive/Sporadic

A9 Structure-Borne Sound Actuator
U112100
Databus Missing Message
Passive/Sporadic

CA Sunroof Control Module
U112100
Databus Missing Message
Passive/Sporadic

CF Lane Change Assistant 2
U112300
Databus Error Value Received
Passive/Sporadic

CF Lane Change Assistant 2
U112100
Databus Missing Message
Passive/Sporadic

[swalker]

there's a common ish issue i had with my 07 A6. Dash lights up like a Christmas tree and will sometimes not start. After a lot of keyboard mashing and reading of people spending thousands replace this module that unit and the complete can bus system, it turned out to be a £15 relay that supplies power to the control modules. From a quick flick through the above looks like things are not talking/ turned off. get the schematics out and see if all the faulty modules run from the same power relay.