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C12B216 — Driver activity sensor, Voltage too low
Driver activity sensor, Voltage too low. 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 C12B216
How to read and clear C12B216
- 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 C12B216 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 Front Assist Camera
| C12AF02 | Rear peripheral camera, video wiring, Signal error |
| C12B001 | Left peripheral camera, video wiring, Electrical malfunction |
| C12B002 | Left peripheral camera, video wiring, Signal error |
| C12B101 | Right peripheral camera, video wiring, Electrical malfunction |
| C12B102 | Right peripheral camera, video wiring, Signal error |
| C12B204 | Driver activity sensor, faulty |
| C12B217 | Driver activity sensor, voltage too high |
| C12B231 | Driver activity sensor, No signal |
| C12B298 | Driver activity sensor, Temperature too high |
| C12B2F0 | Driver activity sensor, Restricted view |
| C12B2F1 | Driver activity sensor, incorrect serial number |
| C12B2F2 | Driver activity sensor, Firmware obsolete |
All 336 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.