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B154929 — Frt. pass. longitudinal adjust. from rear, Implausible signal

Frt. pass. longitudinal adjust. from rear, Implausible signal. The Taycan, 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 B154929

Porsche Taycan

Door Module, Rear Passenger

Porsche Panamera (971, 2017–2023)

Door Module, Rear Passenger

Porsche Panamera (972, 2024–)

Tuer_BFSh (Tuere hinten Beifahrerseite)

Porsche Cayenne (9YA)

Door Module, Rear Passenger

How to read and clear B154929

  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 B154929 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 Door Module, Rear Passenger

B14FF12Child safety lock motor, Short circuit to B+
B14FF13Motor for child safety lock, Open circuit
B14FF29Child safety lock motor, Implausible signal
B154601Belt feeder, Electrical error
B154607Belt feeder, mechanical malfunction
B154829Frt. pass. seat adjust. from rear, Implausible signal
B154A29Memory position button, Implausible signal
B154B01Motor for rear side window shade, Electrical error
B154B07Motor for rear side window shade, mechanical malfunction
B16FC01Door heating element 1, Electrical malfunction
B16FD01Door heating element 2, Electrical malfunction
B16FE01Sensor for door heating element 1, Electrical malfunction

All 70 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.