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U112200 — Data bus - implausible message

Data bus - implausible message. The Taycan, 911 (992), Panamera (971), Panamera (972) and Cayenne report this code; below is which control unit sets it on each model and how to read and clear it.

Which models and control units set U112200

Porsche Taycan

Exterior Sound ActuatorSound ActuatorAdaptive Cruise ControlAerodynamics Control UnitAirbagAir ConditioningOn-Board Charger 2On-Board ChargerBattery Energy Control ModuleBrake ElectronicsBrake BoosterRear View CameraCentral ElectricsComfort System ModuleChassis ControlSunroof Control ModuleLane Change Assist 2Instrument ClusterDC/DC Converter 2DC/DC ConverterDoor Module, DriverDoor Module, PassengerEngine Control Module 1Front Corner Radar 1Front Corner Radar 2GatewayGear Shift Control ModuleLane Change AssistLaser ScannerLight Control LeftLight Control RightLock ElectronicsOTA Function Control UnitRear Axle SteeringRoll Control SystemSeat Module, DriverSeat Module, PassengerSound SystemSteering AssistSteering Column ElectronicsTyre Pressure MonitorTrailer Function

Porsche 911 (992)

SoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)All-Wheel Drive ControlBedienSG_vo (Bedieneinheit vorne)Brake ElectronicsEBKV (Bremskraftverstaerker)RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Chassis ControlSAD (Schiebedach)SWA2 (Spurwechselassistent 2)Kombi LGTuer_FS (Tuere vorne Fahrerseite)Tuer_BFS (Tuere vorne Beifahrerseite)PADM (Dynamische Aggregatelagerung)Convertible Top Control UnitEngine Control Module 1Lift VA (Lift Vorderachse)GatewayWH (Waehlhebel)MIB2 (Zentralrechner)SWA (Spurwechselassistent)Light Control LeftLight Control RightRear Axle SteeringRoll Control System 2Seat Module, DriverSeat Module, PassengerDSP (Audioverstaerker)Steering AssistSteering Column ElectronicsELV – Electric Steering LockRDK (Reifendruckkontrolle)

Porsche Panamera (971, 2017–2023)

Exterior Sound ActuatorSoundaktuatorACC2 (Abstandsregelung 2)ACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Air ConditioningOn-Board ChargerBedienSG_vo (Bedieneinheit vorne)Brake ElectronicsEBKV (Bremskraftverstaerker)RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Chassis ControlSAD (Schiebedach)SWA2 (Spurwechselassistent 2)KombiDCDC 48V (Spannungswandler 48V)Door Module, DriverDoor Module, PassengerEngine Control Module 1BVS (Bildverarbeitungssystem)GatewayWH (Waehlhebel)MIB2 (Zentralrechner)SWA (Spurwechselassistent)Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)GQS (Quersperre)DVD WechslerRear Axle SteeringSCR (Reduktionsmittel-Dosiersystem)eAWS1 (elektrische Aktive Wank Stabilisierung 1)Seat Module, DriverSeat Module, PassengerSeat Control Module, Rear Driver SideSeat Control Module, Rear Passenger SideDSP (Audioverstaerker)Steering AssistSteering Column ElectronicsELV – Electric Steering LockRDK (Reifendruckkontrolle)AAG (Anhaenger)

Porsche Panamera (972, 2024–)

Exterior Sound ActuatorSoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Air ConditioningOn-Board ChargerBedienSG_vo (Bedieneinheit vorne)Brake ElectronicsEBKV (Bremskraftverstaerker)RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Chassis ControlSAD (Schiebedach)MRR_HL (Radar HL)Kombi LGTuer_FS (Tuere vorne Fahrerseite)Tuer_BFS (Tuere vorne Beifahrerseite)Engine Control Module 1MRR_VR (Radar VR)MRR_VL (Radar VL)GatewayWH (Waehlhebel)Image Processing ElectronicsMRR_HR (Radar HR)Light Control LeftLight Control RightGQS (Quersperre)Rear Axle SteeringSeat Module, DriverSeat Module, PassengerSeat Control Module, Rear Driver SideSeat Control Module, Rear Passenger SideDSP (Audioverstaerker)Steering AssistSteering Column ElectronicsELV – Electric Steering LockRDK (Reifendruckkontrolle)AAG (Anhaenger)

Porsche Cayenne (9YA)

Exterior Sound ActuatorSoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Air ConditioningAll-Wheel Drive ControlOn-Board ChargerBedienSG_vo (Bedieneinheit vorne)Brake ElectronicsEBKV (Bremskraftverstaerker)RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Chassis ControlSAD (Schiebedach)SWA2 (Spurwechselassistent 2)KombiDCDC 48V (Spannungswandler 48V)Door Module, DriverDoor Module, PassengerEngine Control Module 1MRR_VR (Radar VR)MRR_VL (Radar VL)GatewayWH (Waehlhebel)MIB2 (Zentralrechner)SWA (Spurwechselassistent)Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)GQS (Quersperre)DVD WechslerRear Axle SteeringSCR (Reduktionsmittel-Dosiersystem)eAWS1 (elektrische Aktive Wank Stabilisierung 1)Seat Module, DriverSeat Module, PassengerDSP (Audioverstaerker)Steering AssistSteering Column ElectronicsELV – Electric Steering LockRDK (Reifendruckkontrolle)AAG (Anhaenger)

How to read and clear U112200

  1. Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
  2. Open STEUER14, pick your car and run a fault scan: every control unit is read, and U112200 shows with its status, its full description and the freeze frame when the unit stores one.
  3. Fix the cause first, then clear the fault memory and scan again to check it stays away. Reading and clearing fault codes is free on every control unit.

More about fault memory in the manual →

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Other codes of the Exterior Sound Actuator

P1EEC00Loudspeaker test active
U101100Supply voltage – too low
U101200Supply voltage – too high
U10D900Control unit not installed correctly
U110300Production mode active
U112100Data bus - missing message
U112300Data bus – fault value received
U120000Data bus, Faulty
U120100Data bus, No communication
U140000Function restriction – supply voltage too low
U140100Function restriction – supply voltage too high
U18C800Data bus, Faulty

All 50 codes of this control unit →

Fault names come from the manufacturer's diagnostic data. STEUER14 is independent and not affiliated with Porsche AG. A code tells you what a control unit detected, not always which part failed — check wiring, supply voltage and related codes before replacing parts. STEUER14 shows each fault's full description, status and freeze frame on the car.