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U010300 — Selector support - no communication

Selector support - 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 U010300

Porsche Taycan

Engine Control Module 1Gateway

Porsche 911 (992)

GatewayPDK Transmission

Porsche Panamera (971, 2017–2023)

GatewayPDK Transmission

Porsche Panamera (972, 2024–)

GatewayPDK Transmission

Porsche Cayenne (9YA)

GatewayTorque Converter (Transmission)

How to read and clear U010300

  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 U010300 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 Engine Control Module 1

P305300Terminal 50, feedback line - short circuit to ground/open circuit
P32F200Electric driving performance too low due to high-voltage battery current discharge limit
U002800Hybrid CAN bus – faulty
U002900Hybrid CAN bus - no communication
U008000FlexRay data bus - synchronization
U010100Lost Communication with TCM
U011000High-voltage power electronics control unit - no communication
U011200High-voltage battery control unit – no communication
U011600Thermal management control unit - missing message
U012900Brake electronics (PSM) control unit - no communication
U013000Power steering control unit - no communication
U013200Control unit for chassis control (PASM) – no communication

All 274 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.