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B200047 — 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 B200047

Porsche Taycan

Comfort System ModuleDigital Matrix Light UnitLane Change Assist 2Front Corner Radar 1Front Corner Radar 2GatewayLane Change AssistLaser ScannerNight Vision AssistSteering AssistSteering Column ElectronicsTelematics Communication UnitTelematics Diagnostic UnitTyre Pressure MonitorTrailer Function

Porsche 911 (992)

BCM2 (Body Control Module 2)Control Unit Digital Matrix Light (ZDML)SWA2 (Spurwechselassistent 2)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)NightVision (Waermebildkamera)Steering AssistSteering Column ElectronicsTelematics Communication UnitRDK (Reifendruckkontrolle)

Porsche Panamera (971, 2017–2023)

BCM2 (Body Control Module 2)SWA2 (Spurwechselassistent 2)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)LCM_L (Lichtsteuerung links)LCM_R (Lichtsteuerung rechts)Night Vision AssistSCR (Reduktionsmittel-Dosiersystem)Steering AssistSteering Column ElectronicsTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)

Porsche Panamera (972, 2024–)

BCM2 (Body Control Module 2)Control Unit Digital Matrix Light (ZDML)MRR_HL (Radar HL)MRR_VR (Radar VR)MRR_VL (Radar VL)GatewayMRR_HR (Radar HR)NightVision (Waermebildkamera)Steering AssistSteering Column ElectronicsTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)

Porsche Cayenne (9YA)

AEM – Active Engine MountsBCM2 (Body Control Module 2)Control Unit Digital Matrix Light (ZDML)SWA2 (Spurwechselassistent 2)MRR_VR (Radar VR)MRR_VL (Radar VL)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)LCM_L (Lichtsteuerung links)LCM_R (Lichtsteuerung rechts)Night Vision AssistSCR (Reduktionsmittel-Dosiersystem)Steering AssistSteering Column ElectronicsTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)

How to read and clear B200047

  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 B200047 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 Comfort System Module

B200000Control unit – function restriction
B200004Control unit – function restriction
B200043Control unit – function restriction
B200044Control unit – function restriction
B200045Control unit – function restriction
B200046Control unit – function restriction
B200094Control unit – function restriction
B200096Control unit – function restriction
B200500Coding
B201200Coding
B202500Coding
C103404Vehicle level sensor, front left – fault

All 616 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.