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B1A8AF3 — LIN actuator for charge port door – communication error

LIN actuator for charge port door – communication error. The Taycan, 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 B1A8AF3

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B1A8AF3

  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 B1A8AF3 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 On-Board Charger

B1A89F3LED module for right charge port door – undervoltage
B1A8A4BActuator for left charging port door - overtemperature
B1A8A96Actuator for left charge port door - internal error
B1A8AF0Actuator for left charge port door – travel error
B1A8AF1Actuator for left charge port door - supply voltage error
B1A8AF2Actuator for left charge port door - referencing error
B1A8F04LED module for left charge port door – defective
B1A8F96LED module on left charge port door, internal error
B1A8FF0LED module for left charge port door, communication error
B1A8FF1Left charge port door LED module – anti-play prevention active
B1A8FF2LED module for left charge port door – overvoltage
B1A8FF3LED module for left charge port door – undervoltage

All 221 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.