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B12DD92 — Tailgate lock motor – mechanical fault
Tailgate lock motor – mechanical fault. 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 B12DD92
How to read and clear B12DD92
- 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 B12DD92 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 Comfort System Module
| B12CF11 | Right direction indicator light in tailgate – short circuit to ground |
| B12CF12 | Right direction indicator light in tailgate – short circuit to B+ |
| B12CF13 | Right direction indicator light in tailgate – open circuit |
| B12CF15 | Right direction indicator light in tailgate – short circuit to B+ or open circuit |
| B12DD11 | Tailgate lock motor – short circuit to ground |
| B12DD15 | Tailgate lock motor – short circuit to B+ or open circuit |
| B12FD54 | Immobilizer – not taught |
| B12FEF0 | Engine/Motor Control Module 2/power electronics 3, not authorized |
| B12FFF0 | High-voltage power electronics for front axle – immobilizer active |
| B1300F0 | High-voltage power electronics for rear axle – immobilizer active |
| B1301F0 | Servo motor (electric gear actuator) – immobilizer active |
| B1302F0 | Steering column lock control unit – immobilizer active |
All 616 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.