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C11BD01 — LED daytime running/park. light, Electrical error

LED daytime running/park. light, Electrical error. 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 C11BD01

Porsche Taycan

Light Control LeftLight Control Right

Porsche 911 (992)

Light Control LeftLight Control Right

Porsche Panamera (971, 2017–2023)

Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)

Porsche Panamera (972, 2024–)

Light Control LeftLight Control Right

Porsche Cayenne (9YA)

Light Control LeftLCM_L (Lichtsteuerung links)Light Control RightLCM_R (Lichtsteuerung rechts)

How to read and clear C11BD01

  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 C11BD01 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 Light Control Left

C11B2F3Daytime driving lights – voltage too low
C11B2F6Daytime driving light bulbs, Overtemperature protection active
C11B2FADaytime driving lights – short circuit
C11B2FBDaytime running lights, above normal temperature
C11B2FCDaytime running lights, below normal temperature
C11B413Daytime driving light supply, Open circuit
C11BDF1LED daytime running/park. light, Current coding implausible
C11BDF6LED daytime running/park. light, Output voltage/output power implausible
C11BE01LED park. light, Electrical error
C11BEF0LED park. light, Current coding electrical error
C11BEF6LED park. light, Output voltage/output power implausible
C11BF01LED turn sig., Electrical error

All 223 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.