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B18D3F2 — Functions which can be activated, Invalid control module configuration

Functions which can be activated, Invalid control module configuration. 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 B18D3F2

Porsche Taycan

Front Assist CameraGatewayInformation Control Unit

Porsche 911 (992)

ZFAS (Zentrales Fahrer Assistenz System)GatewayMIB2 (Zentralrechner)

Porsche Panamera (971, 2017–2023)

GatewayMIB2 (Zentralrechner)

Porsche Panamera (972, 2024–)

ZFAS (Zentrales Fahrer Assistenz System)GatewayMIB3 (Zentralrechner)

Porsche Cayenne (9YA)

ZFAS (Zentrales Fahrer Assistenz System)GatewayMIB2 (Zentralrechner)

How to read and clear B18D3F2

  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 B18D3F2 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 Front Assist Camera

B187501Wire for additional camera, Electrical error
B187A00Park steer assist cancelation
B187BF0Transmission Control Module (TCM), Parking assistant, drive position implausible
B187BF1Transmission Control Module (TCM), Parking assistant status implausible
B188FF0Signal not initialized
B18C700Trailer shunting assistant canceled
B18D3F4Function activation – authentication failed
B18D3F6Functions which can be activated, Signal not initialized
B200000Control unit – function restriction
B200004Control unit – function restriction
B200009Ctrl. module faulty
B200043Control unit – function restriction

All 336 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.