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B16D4F7 — Outer left tail light – reversing light defective

Outer left tail light – reversing light defective. 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 B16D4F7

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 B16D4F7

  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 B16D4F7 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

B16D4F1Outer left tail light – LED module defective
B16D4F2Outer left tail light – marker light defective
B16D4F3Outer left tail light – brake light defective
B16D4F4Outer left tail light – direction indicator defective
B16D4F5Outer left tail light – rear fog light defective
B16D4F6Outer left tail light – license plate light defective
B16D504Center left tail light – defective
B16D511Center left tail light – short circuit to ground
B16D512Center left tail light – short circuit to B+
B16D513Center left tail light – open circuit
B16D515Center left tail light – short circuit to B+ or open circuit
B16D516Center left tail light, voltage too low

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.