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U11AC00 — Control module for instrument panel via local databus, No communication
Control module for instrument panel via local databus, No communication. The 911 (992), Panamera (971) 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 U11AC00
How to read and clear U11AC00
- 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 U11AC00 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 MIB2 (Zentralrechner)
| U111100 | Operating and display log - missing message |
| U111400 | Component protection – authentication failed (GFA) |
| U111500 | Component protection – not taught (SHE) |
| U112100 | Data bus - missing message |
| U112200 | Data bus - implausible message |
| U112300 | Data bus – fault value received |
| U11B800 | Connection for external media source - USB, faulty communication |
| U11B900 | Volume control, No communication |
| U11BA00 | Control head for driving and comfort functions, No communication |
| U11BB00 | Ethernet databus branch 1, Electrical error |
| U11BC00 | Ethernet databus branch 2, Electrical error |
| U11BD00 | Ethernet databus branch 3, Electrical error |
All 668 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.