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B143913 — Right rear parking/fog light bulb, Open circuit

Right rear parking/fog light bulb, Open circuit. 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 B143913

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 B143913

  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 B143913 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

B143811Left rear parking/fog light bulb, Short circuit to ground
B143812Left rear parking/fog light bulb, Short circuit to B+
B143813Left rear parking/fog light bulb, Open circuit
B143815Left rear parking/fog light bulb, Open circuit/short circuit to B+
B143911Right rear parking/fog light bulb, Short circuit to ground
B143912Right rear parking/fog light bulb, Short circuit to B+
B143915Right rear parking/fog light bulb, Open circuit/short circuit to B+
B143C04Power button (ignition starter switch) – fault
B143C29Power button (ignition starter switch) – signal implausible
B143C4APower button (ignition starter switch – part number implausible
B145E11Transmission park selector switch, Short circuit to ground
B145E29Transmission park selector switch, Implausible signal

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.