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B18CD13 — W-LAN antenna 1, open circuit
W-LAN antenna 1, open circuit. 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 B18CD13
How to read and clear B18CD13
- 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 B18CD13 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 Telematics Communication Unit
| B18BF12 | LTE antenna 3 – short circuit to B+ |
| B18BF13 | LTE antenna 3 – open circuit |
| B18BFF0 | LTE antenna 3 – incorrect installation detected |
| B18CCF1 | Ethernet transceiver, Function restriction due to excess temperature protection |
| B18CD11 | W-LAN antenna 1, short circuit to ground |
| B18CD12 | W-LAN antenna 1, short circuit to B+ |
| B18CE11 | W-LAN antenna 2, short circuit to ground |
| B18CE12 | W-LAN antenna 2, short circuit to B+ |
| B18CE13 | W-LAN antenna 2, open circuit |
| B18DDF0 | Emergency call test mode, Microphone function restriction |
| B18DDF1 | Emergency call test mode, Loudspeaker function restriction |
| B18DDF2 | Emergency call test mode, Airbag function restriction |
All 157 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.