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B198412 — Center back-up light bulb, Short circuit to B+

Center back-up light bulb, Short circuit to B+. 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 B198412

Porsche Taycan

Comfort System Module

Porsche 911 (992)

BCM2 (Body Control Module 2)

Porsche Panamera (971, 2017–2023)

BCM2 (Body Control Module 2)

Porsche Panamera (972, 2024–)

BCM2 (Body Control Module 2)

Porsche Cayenne (9YA)

BCM2 (Body Control Module 2)

How to read and clear B198412

  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 B198412 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

B193329Button for unlocking front lid – signal implausible
B198311Center rear fog light bulb, Short circuit to ground
B198312Center rear fog light bulb, Short circuit to B+
B198313Center rear fog light bulb, Open circuit
B198315Center rear fog light bulb, Open circuit/short circuit to B+
B198411Center back-up light bulb, Short circuit to ground
B198413Center back-up light bulb, Open circuit
B198415Center back-up light bulb, Open circuit/short circuit to B+
B198502Proximity sensor in front lid – signal error
B198511Front lid proximity sensor – short circuit to ground
B198512Front lid proximity sensor – short circuit to B+
B198513Front lid proximity sensor – open circuit

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.