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B200045 — 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 B200045

Porsche Taycan

Rear View CameraCentral ElectricsComfort System ModuleLane Change Assist 2Deck Lid Control UnitGatewayInformation Control UnitLane Change AssistLaser ScannerRear Axle SteeringSound SystemSteering AssistTelematics Communication UnitTelematics Diagnostic UnitTyre Pressure MonitorTrailer Function

Porsche 911 (992)

RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)SWA2 (Spurwechselassistent 2)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)DSP (Audioverstaerker)Steering AssistTelematics Communication UnitRDK (Reifendruckkontrolle)

Porsche Panamera (971, 2017–2023)

RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)SWA2 (Spurwechselassistent 2)HDSG (Heckdeckel)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)LCM_L (Lichtsteuerung links)LCM_R (Lichtsteuerung rechts)DVD WechslerRear Axle SteeringSCR (Reduktionsmittel-Dosiersystem)DSP (Audioverstaerker)Steering AssistTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)TV Tuner

Porsche Panamera (972, 2024–)

RueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)MRR_HL (Radar HL)HDSG (Heckdeckel)GatewayMIB3 (Zentralrechner)MRR_HR (Radar HR)Rear Axle SteeringDSP (Audioverstaerker)Steering AssistTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)

Porsche Cayenne (9YA)

AEM – Active Engine MountsRueckfahrkameraBCM1 (Body Control Module 1)BCM2 (Body Control Module 2)SWA2 (Spurwechselassistent 2)HDSG (Heckdeckel)GatewayMIB2 (Zentralrechner)SWA (Spurwechselassistent)LCM_L (Lichtsteuerung links)LCM_R (Lichtsteuerung rechts)DVD WechslerRear Axle SteeringSCR (Reduktionsmittel-Dosiersystem)DSP (Audioverstaerker)Steering AssistTelematics Communication UnitTelematics Diagnostic UnitRDK (Reifendruckkontrolle)AAG (Anhaenger)

How to read and clear B200045

  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 B200045 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 →

Download STEUER14 — free fault reading

Other codes of the Rear View Camera

B186796Side camera (left) - internal fault
B186896Side camera (right) - internal fault
B1872F0Control unit, internal supply voltage
B187501Wire for additional camera, Electrical error
B200043Control unit – function restriction
B200044Control unit – function restriction
B200046Control unit – function restriction
B2000F1Control unit – function restriction
B200500Coding
B201000Calibration
B201200Coding
B201300Coding

All 74 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.