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B100D00 — Driver seat belt tensioner igniter 2

Driver seat belt tensioner igniter 2. 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 B100D00

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B100D00

  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 B100D00 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

B100C01Ignition circuit for knee airbag on driverʼs side - short circuit to other ignition circuit
B100C11Ignition circuit for knee airbag on driverʼs side - short circuit to ground
B100C12Ignition circuit for knee airbag on driverʼs side - short circuit to B+
B100C1AIgnition circuit for knee airbag on driverʼs side - resistance too low
B100C1BIgnition circuit for knee airbag on driverʼs side - resistance too high
B100C53Ignition circuit for knee airbag on driverʼs side - deactivated
B100D01Driver seat belt tensioner igniter 2, Electrical error
B100D11Driver seat belt tensioner igniter 2, Short circuit to ground
B100D12Driver seat belt tensioner igniter 2, Short circuit to B+
B100D1ADriver seat belt tensioner igniter 2, Resistance too low
B100D1BDriver seat belt tensioner igniter 2, Resistance too high
B100E00Ignition circuit for knee airbag on passenger’s side - equipment fault

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.