Home › Fault codes › B15C204

B15C204 — Rear ambient light, front right door storage box (AL17) – defective

Rear ambient light, front right door storage box (AL17) – 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 B15C204

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B15C204

  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 B15C204 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

B15BC04Front ambient light, rear left door panel (AL18) – defective
B15BD04Front ambient light, rear right door panel (AL21) – defective
B15BE04Bulb 1 for contour lighting of instrument panel, Faulty
B15BF04Bulb 2 for contour lighting of instrument panel, Faulty
B15C004Bulb 3 for contour lighting of instrument panel, Faulty
B15C104Rear ambient light, front left door storage box (AL13) – defective
B15C304Ambient light, rear left door storage box (AL20) – defective
B15C404Ambient light, rear right door storage box (AL23) – defective
B15C504Bulb 1 contour lighting of operating unit for multimedia system, Faulty
B15C604Bulb 2 contour lighting of operating unit for multimedia system, Faulty
B15C704Ambient light, front center console (AL1) – defective
B15C804Front center console ambient lighting bulb 2, Faulty

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.