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C12AD12 — Driver activity sensor, video wiring, Short circuit to B+

Driver activity sensor, video wiring, Short circuit to B+. The Taycan, 911 (992), 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 C12AD12

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear C12AD12

  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 C12AD12 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 Driver Monitoring System

B200FF5Internal malfunction
B200FF6Internal malfunction
B200FF7Internal malfunction
B201200Coding
C110A76Camera control module, Incorrect installation location
C12AD11Driver activity sensor, video wiring, Short circuit to Ground (GND)
C12AD13Driver activity sensor, video wiring, Open circuit
C12B204Driver activity sensor, faulty
C12B231Driver activity sensor, No signal
C12B298Driver activity sensor, Temperature too high
C12B2F0Driver activity sensor, Restricted view
C12B2F1Driver activity sensor, incorrect serial number

All 35 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.