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B179CF0 — Left rear midrange speaker 2, Short circuit to each other

Left rear midrange speaker 2, Short circuit to each other. 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 B179CF0

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B179CF0

  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 B179CF0 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 Information Control Unit

B174211Connection for external media source - USB 4 - short circuit
B174213Connection for external media source - USB 4 - open circuit
B1765F1Active Noise Cancellation – no default setting
B179C11Left rear midrange speaker 2, Short circuit to Ground (GND)
B179C12Left rear midrange speaker 2, Short circuit to B+
B179C13Left rear midrange speaker 2, Open circuit
B179D11Right rear midrange speaker 2, Short circuit to Ground (GND)
B179D12Right rear midrange speaker 2, Short circuit to B+
B179D13Right rear midrange speaker 2, Open circuit
B179DF0Right rear midrange speaker 2, Short circuit to each other
B17B707Operator control unit in front center console - source selection button, mechanical fault
B17EF11Center mid-treble speaker 1, Short circuit to Ground (GND)

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.