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B10CA31 — Servomotor for right door window vent – no communication

Servomotor for right door window vent – no communication. 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 B10CA31

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B10CA31

  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 B10CA31 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 Air Conditioning

B10C909Servomotor for door window left air vent – component fault
B10C929Servomotor for left door window vent – message implausible
B10C931Servomotor for left door window vent – no communication
B10CA04Servomotor for right door window vent – defective
B10CA09Servomotor for door window right air vent – component fault
B10CA29Servomotor for right door window vent – message implausible
B10CB04Servo motor for front left center vent – defective
B10CB09Servo motor for front left center vent – component fault
B10CB29Servo motor for front left center air vent – message implausible
B10CB31Servo motor for front left center vent – no communication
B10CC04Servo motor for front right center air vent – defective
B10CC09Servo motor for front right center air vent – component fault

All 418 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.