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B101211 — Center rear seat belt tensioner igniter, Short circuit to ground

Center rear seat belt tensioner igniter, 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 B101211

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B101211

  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 B101211 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 Airbag

B101112Ignition circuit for side airbag on rear driverʼs side - short circuit to B+
B10111AIgnition circuit for side airbag on rear driverʼs side - resistance too low
B10111BIgnition circuit for side airbag on rear driverʼs side - resistance too high
B101153Ignition circuit for side airbag on rear driverʼs side - deactivated
B101200Center rear seat belt tensioner igniter
B101201Center rear seat belt tensioner igniter, Electrical error
B101212Center rear seat belt tensioner igniter, Short circuit to B+
B10121ACenter rear seat belt tensioner igniter, Resistance too low
B10121BCenter rear seat belt tensioner igniter, Resistance too high
B101253Center rear seat belt tensioner igniter, Deactivated
B101300Ignition circuit for belt force limiter on front driver’s side - equipment fault
B101301Ignition circuit for belt force limiter on front driverʼs side - short circuit to other ignition circuit

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.