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B186A00 — Function restriction due to safety system switch-off
Function restriction due to safety system switch-off. 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 B186A00
How to read and clear B186A00
- 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 B186A00 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 Antenna Control Module
| B10CD00 | Function restriction due to energy management |
| B17FBF0 | Roof antenna control units, Micro controller play protection active |
| B17FBF1 | Roof antenna control units, CAN play protection active |
| B184C00 | Release active |
| B186B00 | Function limitation because of Bluetooth shutdown |
| B186C00 | Function restriction due to internal error |
| B190C11 | Bluetooth antenna 1 - short circuit to ground |
| B190C12 | Bluetooth antenna 1 - short circuit to B+ |
| B190C13 | Bluetooth antenna 1 - interference |
| B1AA911 | Bluetooth antenna 2 - short circuit to ground |
All 31 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.