Home › Fault codes › B100953

B100953 — Ignition circuit for belt tensioner on rear driverʼs side - deactivated

Ignition circuit for belt tensioner on rear driverʼs side - deactivated. 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 B100953

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B100953

  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 B100953 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

B100900Ignition circuit for belt tensioner on rear driver’s side - equipment fault
B100901Ignition circuit for belt tensioner on rear driverʼs side - short circuit to other ignition circuit
B100911Ignition circuit for belt tensioner on rear driverʼs side - short circuit to ground
B100912Ignition circuit for belt tensioner on rear driverʼs side - short circuit to B+
B10091AIgnition circuit for belt tensioner on rear driverʼs side - resistance too low
B10091BIgnition circuit for belt tensioner on rear driverʼs side - resistance too high
B100A00Ignition circuit for side airbag on front passenger’s side - equipment fault
B100A01Ignition circuit for side airbag on front passengerʼs side - short circuit to other ignition circuit
B100A11Ignition circuit for side airbag on front passengerʼs side - short circuit to ground
B100A12Ignition circuit for side airbag on front passengerʼs side - short circuit to B+
B100A1AIgnition circuit for side airbag on front passengerʼs side - resistance too low
B100A1BIgnition circuit for side airbag on front passengerʼs side - resistance too high

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.