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B153B02 — Upper backrest adjustment motor, Signal error

Upper backrest adjustment motor, Signal error. 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 B153B02

Porsche Taycan

Seat Module, DriverSeat Module, Passenger

Porsche 911 (992)

Seat Module, DriverSeat Module, Passenger

Porsche Panamera (971, 2017–2023)

Seat Module, DriverSeat Module, PassengerSeat Control Module, Rear Driver SideSeat Control Module, Rear Passenger Side

Porsche Panamera (972, 2024–)

Seat Module, DriverSeat Module, PassengerSeat Control Module, Rear Driver SideSeat Control Module, Rear Passenger Side

Porsche Cayenne (9YA)

Seat Module, DriverSeat Module, Passenger

How to read and clear B153B02

  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 B153B02 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 Seat Module, Driver

B13BFF0valve block 3, Low temperature
B13BFF1valve block 3, Voltage on the coding pin implausible
B153907Upper backrest adjustment button, mechanical malfunction
B153929Upper backrest adjustment button, Implausible signal
B153A07Seat depth adjustment button, mechanical malfunction
B153A29Seat depth adjustment button, Implausible signal
B153B13Upper backrest adjustment motor, Open circuit
B153B4BHeadrest adjustment motor, temperature - above limit value
B153B54Upper backrest adjustment motor, No basic setting
B153C02Seat depth adjustment motor, Signal error
B153C13Seat depth adjustment motor, Open circuit
B153C4BSeat depth adjustment motor, temperature - above limit value

All 222 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.