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B171B07 — Operator control unit in front center console - smartphone "App" button, mechanical fault
Operator control unit in front center console - smartphone "App" button, mechanical fault. 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 B171B07
How to read and clear B171B07
- 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 B171B07 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 Information Control Unit
| B170311 | Right front mid-bass speaker, Short circuit to ground |
| B170312 | Right front mid-bass speaker, Short circuit to B+ |
| B170313 | Right front mid-bass speaker, Open circuit |
| B1703F0 | Right front mid-bass speaker, Short circuit to each other |
| B171A06 | Volume control for multimedia system, Software malfunction |
| B171AF0 | Volume control for multimedia system, Sticky button |
| B171C07 | Operator control unit in front center console - "Home" start screen button, mechanical fault |
| B172D07 | Operator control unit in front center console - online service button, mechanical fault |
| B172E11 | WLAN antenna - short circuit to ground |
| B172E12 | WLAN antenna - short circuit to B+ |
| B172E13 | WLAN antenna - open circuit |
| B1731F0 | Speaker channel 17, Polarity reversed |
All 614 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.