Home › Fault codes › U126900

U126900 — Rear temperature door motor, No communication

Rear temperature door motor, No communication. 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 U126900

Porsche Taycan

Central Electrics

Porsche 911 (992)

BCM1 (Body Control Module 1)

Porsche Panamera (971, 2017–2023)

BCM1 (Body Control Module 1)

Porsche Panamera (972, 2024–)

BCM1 (Body Control Module 1)

Porsche Cayenne (9YA)

BCM1 (Body Control Module 1)

How to read and clear U126900

  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 U126900 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 Central Electrics

U126300Ctrl. motor for instrument panel vents, No communication
U126400Ctrl. motor for instrument panel vents, implausible message
U126500Left temperature flap positioning motor, No communication
U126600Left temperature flap positioning motor, implausible message
U126700Right temperature flap positioning motor, No communication
U126800Right temperature flap positioning motor, implausible message
U126A00Rear temperature door motor, implausible message
U126B00Left footwell temperature door motor, No communication
U126C00Left footwell temperature door motor, implausible message
U126D00Right footwell temperature door motor, No communication
U126E00Right footwell temperature door motor, implausible message
U126F00Left rear temperature door motor, No communication

All 1472 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.