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U111100 — Operating and display log - missing message

Operating and display log - missing 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 U111100

Porsche Taycan

Aerodynamics Control UnitOn-Board Charger 2On-Board ChargerRear Operating UnitCentral ElectricsInstrument ClusterDoor Module, DriverDoor Module, PassengerGatewayHead-Up Display

Porsche 911 (992)

Aerodynamics Control UnitBedienSG_vo (Bedieneinheit vorne)BCM1 (Body Control Module 1)Kombi LGTuer_FS (Tuere vorne Fahrerseite)Tuer_BFS (Tuere vorne Beifahrerseite)Drive Motor Control ModuleConvertible Top Control UnitGatewayMIB2 (Zentralrechner)VTS (Diebstahlverfolgungssystem)

Porsche Panamera (971, 2017–2023)

Aerodynamics Control UnitOn-Board ChargerBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)BCM1 (Body Control Module 1)KombiDoor Module, DriverDoor Module, PassengerDrive Motor Control ModuleGatewayMIB2 (Zentralrechner)VTS (Diebstahlverfolgungssystem)

Porsche Panamera (972, 2024–)

Aerodynamics Control UnitOn-Board ChargerBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)BCM1 (Body Control Module 1)Kombi LGTuer_FS (Tuere vorne Fahrerseite)Tuer_BFS (Tuere vorne Beifahrerseite)Drive Motor Control ModuleGateway

Porsche Cayenne (9YA)

Aerodynamics Control UnitAEM – Active Engine MountsOn-Board ChargerBedienSG_hi (Bedieneinheit hinten)BedienSG_vo (Bedieneinheit vorne)BCM1 (Body Control Module 1)KombiDoor Module, DriverDoor Module, PassengerDrive Motor Control ModuleGatewayMIB2 (Zentralrechner)VTS (Diebstahlverfolgungssystem)

How to read and clear U111100

  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 U111100 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 Aerodynamics Control Unit

U001100Comfort CAN bus - no communication
U10BA00LIN bus 1 – no communication
U110000Component protection – not taught
U110100Component protection active
U110300Production mode active
U110500Transport mode active
U112100Data bus - missing message
U112200Data bus - implausible message
U112300Data bus – fault value received
U140000Function restriction – supply voltage too low
U140100Function restriction – supply voltage too high
U141300Terminal 30-3 supply voltage – open circuit

All 305 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.