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C115F29 — Longitudinal acceleration high channel, Implausible signal

Longitudinal acceleration high channel, Implausible signal. 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 C115F29

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear C115F29

  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 C115F29 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

C102229Lateral acceleration combination sensor - signal implausible
C102329Lateral acceleration combination sensor - signal implausible
C10A700Rolling test mode active
C10B129Combination sensor for longitudinal acceleration - signal implausible
C10EE00Rolling test mode - fault
C115E54Combination sensor, calibration
C116029Lateral acceleration combination sensor - signal implausible
C116129Combination sensor for acceleration - signal implausible
C116229Combination sensor for acceleration - signal implausible
U008100Vehicle Communication Bus F Performance
U008A00Vehicle Communication Bus G Performance
U017E00Reversible belt tensioner, front left - no communication

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.