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B12CF11 — Right direction indicator light in tailgate – short circuit to ground

Right direction indicator light in tailgate – short circuit to ground. 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 B12CF11

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B12CF11

  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 B12CF11 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 →

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Other codes of the Comfort System Module

B12CC13Right reversing light – open circuit
B12CC15Right reversing light – short circuit to B+ or open circuit
B12CE11Left direction indicator light in tailgate – short circuit to ground
B12CE12Left direction indicator light in tailgate – short circuit to B+
B12CE13Left direction indicator light in tailgate – open circuit
B12CE15Left direction indicator light in tailgate – short circuit to B+ or open circuit
B12CF12Right direction indicator light in tailgate – short circuit to B+
B12CF13Right direction indicator light in tailgate – open circuit
B12CF15Right direction indicator light in tailgate – short circuit to B+ or open circuit
B12DD11Tailgate lock motor – short circuit to ground
B12DD15Tailgate lock motor – short circuit to B+ or open circuit
B12DD92Tailgate lock motor – mechanical fault

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.