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U11B600 — FlexRay data bus channel A branch 8 faulty

FlexRay data bus channel A branch 8 faulty. 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 U11B600

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear U11B600

  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 U11B600 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 Gateway

U11B000FlexRay data bus channel A branch 2 faulty
U11B100FlexRay data bus channel A branch 3 faulty
U11B200FlexRay data bus channel A branch 4 faulty
U11B300FlexRay data bus channel A branch 5 faulty
U11B400FlexRay data bus channel A branch 6 faulty
U11B500FlexRay data bus channel A branch 7 faulty
U11BB00Ethernet databus branch 1, Electrical error
U11BC00Ethernet databus branch 2, Electrical error
U11BD00Ethernet databus branch 3, Electrical error
U11BE00Ethernet databus branch 4, Electrical error
U11BF00Ethernet databus branch 5, Electrical error
U11C000Ethernet databus branch 6, Electrical error

All 374 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.