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B108701 — Temperature sensor for left door window vent – electrical fault

Temperature sensor for left door window vent – electrical fault. 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 B108701

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear B108701

  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 B108701 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

B108301Temperature sensor for front left footwell outlet vent - electrical fault
B108401Temperature sensor for front right footwell outlet vent - electrical fault
B108801Temperature sensor for right door window vent – electrical fault
B108A11Evaporator temperature sensor - short circuit to ground
B108A15Evaporator temperature sensor - short circuit to B+ or open circuit
B108C04Servo motor for front left temperature mixing flap, faulty
B108C09Servo motor for front left temperature mixing flap - component fault
B108C29Servo motor for front left temperature mixing flap - message implausible

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.