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B100000 — Ignition circuit for driver’s airbag stage 1 - equipment fault

Ignition circuit for driver’s airbag stage 1 - equipment fault. 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 B100000

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B100000

  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 B100000 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

B100001Driver airbag ignition circuit stage 1 - short circuit to other ignition circuit
B100011Driver airbag ignition circuit stage 1 - short circuit to ground
B100012Driver airbag ignition circuit stage 1 - short circuit to B+
B10001ADriver airbag ignition circuit stage 1 - resistance too low
B10001BDriver airbag ignition circuit stage 1 - resistance too high
B100053Driver airbag ignition circuit stage 1 - deactivated

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.