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B15CF04 — Bulb 4 for roof contour lighting, Faulty

Bulb 4 for roof contour lighting, Faulty. 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 B15CF04

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B15CF04

  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 B15CF04 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 →

Download STEUER14 — free fault reading

Other codes of the Central Electrics

B15C904Front center console ambient lighting bulb 3, Faulty
B15CA04Front center console ambient lighting bulb 4, Faulty
B15CB04Front center console ambient lighting bulb 5, Faulty
B15CC04Bulb 1 for roof contour lighting, Faulty
B15CD04Bulb 2 for roof contour lighting, Faulty
B15CE04Bulb 3 for roof contour lighting, Faulty
B15D004Bulb 5 for roof contour lighting, Faulty
B15D104Bulb 6 for roof contour lighting, Faulty
B15D204Bulb 7 for roof contour lighting, Faulty
B15D304Bulb 8 for roof contour lighting, Faulty
B15D404Ambient light in front left footwell (AL6) – defective
B15D504Ambient light, front right footwell (AL7) – defective

All 1472 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.