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B200000 — Control unit – function restriction

Control unit – function restriction. 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 B200000

Porsche Taycan

Exterior Sound ActuatorSound ActuatorAdaptive Cruise ControlAerodynamics Control UnitAirbagOn-Board Charger 2On-Board ChargerMatrix Headlamp LeftMatrix Headlamp RightRear Operating UnitBrake ElectronicsCentral ElectricsComfort System ModuleMobile Device ChargerChassis ControlSunroof Control ModuleDigital Matrix Light UnitLane Change Assist 2Instrument ClusterDC/DC Converter 2DC/DC ConverterDriver Monitoring SystemFront Assist CameraInfotainment InterfaceLane Change AssistLight Control LeftLight Control RightOTA Function Control UnitRoll Control SystemSteering AssistTelematics Communication UnitTyre Pressure Monitor

Porsche 911 (992)

SoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Beamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightBedienSG_vo (Bedieneinheit vorne)Brake ElectronicsBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Ladegeraet 1 fuer mobile EndgeraeteChassis ControlSAD (Schiebedach)Control Unit Digital Matrix Light (ZDML)SWA2 (Spurwechselassistent 2)Kombi LGDriver Monitoring System 2PADM (Dynamische Aggregatelagerung)Convertible Top Control UnitLift VA (Lift Vorderachse)ZFAS (Zentrales Fahrer Assistenz System)Infotainment InterfaceSWA (Spurwechselassistent)Light Control LeftLight Control RightRear Axle SteeringRoll Control System 2Steering AssistELV – Electric Steering LockTelematics Communication UnitRDK (Reifendruckkontrolle)VTS (Diebstahlverfolgungssystem)

Porsche Panamera (971, 2017–2023)

Exterior Sound ActuatorSoundaktuatorACC2 (Abstandsregelung 2)ACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Auxiliary HeaterOn-Board ChargerBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)Brake ElectronicsBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Mobile Device ChargerChassis ControlSAD2 (Schiebedach2)SAD (Schiebedach)SWA2 (Spurwechselassistent 2)KombiGatewayInfotainment InterfaceSWA (Spurwechselassistent)Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)SCR (Reduktionsmittel-Dosiersystem)eAWS1 (elektrische Aktive Wank Stabilisierung 1)Steering AssistELV – Electric Steering LockTelematics Communication UnitRDK (Reifendruckkontrolle)VTS (Diebstahlverfolgungssystem)

Porsche Panamera (972, 2024–)

Exterior Sound ActuatorSoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)Auxiliary HeaterOn-Board ChargerBeamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)Brake ElectronicsBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Mobile Device ChargerMobile Device Charger 2Chassis ControlSAD2 (Schiebedach)SAD (Schiebedach)Control Unit Digital Matrix Light (ZDML)MRR_HL (Radar HL)Kombi LGDriver Monitoring System 2ZFAS (Zentrales Fahrer Assistenz System)Image Processing ElectronicsInfotainment InterfaceMRR_HR (Radar HR)Light Control LeftLight Control RightSteering AssistELV – Electric Steering LockTelematics Communication UnitRDK (Reifendruckkontrolle)

Porsche Cayenne (9YA)

Exterior Sound ActuatorSoundaktuatorACC (Abstandsregelung)Aerodynamics Control UnitSC (Airbag)AEM – Active Engine MountsAuxiliary HeaterOn-Board ChargerBeamer Module Matrix Headlamp LeftBeamer Module Matrix Headlamp RightBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)Brake ElectronicsBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)Mobile Device ChargerChassis ControlSAD (Schiebedach)Control Unit Digital Matrix Light (ZDML)SWA2 (Spurwechselassistent 2)KombiDriver Monitoring System 2ZFAS (Zentrales Fahrer Assistenz System)GatewayInfotainment InterfaceSWA (Spurwechselassistent)Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)SCR (Reduktionsmittel-Dosiersystem)eAWS1 (elektrische Aktive Wank Stabilisierung 1)Steering AssistELV – Electric Steering LockTelematics Communication UnitRDK (Reifendruckkontrolle)VTS (Diebstahlverfolgungssystem)

How to read and clear B200000

  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 B200000 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

B1773F0LED, Short circuit to each other
B177411Lineout, Short circuit to ground
B177412Lineout, Short circuit to B+
B177413Lineout, Open circuit
B1774F0Lineout, Short circuit to each other
B184C00Release active
B200500Coding
B2008F0Function restriction, temperature – above limit value
B201200Coding
B203400Warning – overtemperature
B203500Control unit, part number implausible
C104A4BTemperature - above limit value

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.