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B104211 — Belt buckle switch on rear driverʼs side - short circuit to ground

Belt buckle switch on rear driverʼs side - short circuit to ground. 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 B104211

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B104211

  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 B104211 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 Airbag

B103A11Ignition module lid lock on front driverʼs side - short circuit to ground
B103A12Ignition module lid lock on front driverʼs side - short circuit to B+
B103A1AIgnition module lid lock on front driverʼs side - resistance too low
B103A1BIgnition module lid lock on front driverʼs side - resistance too high
B104200Belt buckle switch on rear driverʼs side – equipment fault
B104201Driver side second row seat belt switch, Electrical error
B104212Driver side second row seat belt switch, Short circuit to B+
B104213Belt buckle switch on rear driverʼs side – open circuit
B104229Belt buckle switch on rear driverʼs side - signal implausible
B104300Rear center buckle switch – equipment fault
B104301Center second row seat belt switch, Electrical error
B104311Rear center belt buckle switch – short circuit to ground

All 723 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.