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B156F93 — Seat belt tightener control module for 2nd row right, No function

Seat belt tightener control module for 2nd row right, No function. 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 B156F93

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B156F93

  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 B156F93 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

B156F51Seat belt tightener control module for 2nd row right, Not programmed
B156F53Seat belt tightener control module for 2nd row right, Deactivated
B156F54Seat belt tightener control module for 2nd row right, No basic setting
B156F55Seat belt tightener control module for 2nd row right, not configured
B156F74Seat belt tightener control module for 2nd row right, Actuator deviated
B156F87Seat belt tightener control module for 2nd row right, Missing message
B156F94Seat belt tightener control module for 2nd row right, No unauthorized function
B156FF0Seat belt tightener control module for 2nd row right, No tensioning due to undervoltage
B156FF1Seat belt tightener control module for 2nd row right, No tensioning due to excess voltage
B156FF2Seat belt tightener control module for 2nd row right, Maximum number of beltless cycles reached
B159B00Control unit not locked
B166764Crash sensors for pedestrian protection - signals implausible

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.