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U108500 — Passenger side multicontour seat control module, No Communication

Passenger side multicontour seat control module, 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 U108500

Porsche Taycan

Porsche 911 (992)

Porsche Panamera (971, 2017–2023)

Porsche Panamera (972, 2024–)

Porsche Cayenne (9YA)

How to read and clear U108500

  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 U108500 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

U101300Coding
U101400Coding
U103000LIN bus 1 – electrical fault
U107600LIN bus 2 - electrical fault
U108300Driver side multicontour seat control module, No Communication
U108400Driver side multicontour seat control module, Implausible signal
U108600Passenger side multicontour seat control module, Implausible signal
U109900Electric auxiliary heater (12V) - no communication
U10A300Windshield wiper motor – no communication
U10BA00LIN bus 1 – no communication
U10C700LIN bus 2 – no communication
U10C800LIN bus 3 - 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.