Home › Fault codes › B17F129
B17F129 — Engine noise selection button, Implausible signal
Engine noise selection button, 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 B17F129
How to read and clear B17F129
- Plug a standard ENET (Ethernet-to-OBD) cable into your Porsche's OBD port and your Mac or Windows PC.
- Open STEUER14, pick your car and run a fault scan: every control unit is read, and B17F129 shows with its status, its full description and the freeze frame when the unit stores one.
- 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 readingOther codes of the Central Electrics
| B17B504 | Roof electronics control module (ambient lighting), faulty |
| B17B604 | Roof electronics control module 2 (ambient lighting), faulty |
| B17DD11 | Ionizer electrode needle 2, Short circuit to Ground (GND) |
| B17DD13 | Ionizer electrode needle 2, Open circuit |
| B17E704 | Left rear door ambient lighting bulb 2, faulty |
| B17E804 | Right rear door ambient lighting bulb 2, faulty |
| B17F311 | Rear window shade button 2, Short circuit to Ground (GND) |
| B17F329 | Rear window shade button 2, Implausible signal |
| B17F7F0 | Front seat heating – function restriction due to overtemperature |
| B17F7F1 | Front seat heating – shutdown due to overtemperature |
| B180DF0 | ParkAssist sensors on left – icy/dirty |
| B180EF0 | ParkAssist sensors on right – icy/dirty |
All 1472 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.