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U134C00 — Servo motor for center rear left vertical air vent – no communication

Servo motor for center rear left vertical air 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 U134C00

Porsche Taycan

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear U134C00

  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 U134C00 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

U134600Servo motor for center front left vertical air vent – no communication
U134700Servo motor for center front right vertical vent – message implausible
U134800Servo motor for center front right vertical air vent – no communication
U134900Servo motor for center rear left horizontal vent – message implausible
U134A00Servo motor for center rear left horizontal air vent – no communication
U134B00Servo motor for center rear left vertical vent – message implausible
U134D00Servo motor for center rear right vertical vent – message implausible
U134E00Servo motor for center rear right vertical air vent – no communication
U13A600Servo motor for left door window horizontal air vent – no communication
U13A700Servo motor for left door window horizontal vent – message implausible
U140000Function restriction – supply voltage too low
U140100Function restriction – supply voltage too high

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.