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U014100 — Front-end electronics control unit (BCM1) - no communication

Front-end electronics control unit (BCM1) - 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 U014100

Porsche Taycan

Brake ElectronicsDrive Motor Control ModuleEngine Control Module 1GatewayThermal Management

Porsche 911 (992)

Battery Energy Control ModuleBrake ElectronicsDC/DC Converter Control Module HVDrive Motor Control ModuleEngine Control Module 1GatewayTME (Thermomanagement)

Porsche Panamera (971, 2017–2023)

48 V Battery Management SystemBattery Energy Control ModuleBrake ElectronicsEBKV (Bremskraftverstaerker)Drive Motor Control ModuleEngine Control Module 1GatewayTME (Thermomanagement)

Porsche Panamera (972, 2024–)

Battery Energy Control ModuleBrake ElectronicsDC/DC Converter Control Module HVDrive Motor Control ModuleEngine Control Module 1GatewayTME (Thermomanagement)

Porsche Cayenne (9YA)

48 V Battery Management SystemBattery Energy Control ModuleBrake ElectronicsEBKV (Bremskraftverstaerker)DC/DC Converter Control Module HVDrive Motor Control ModuleEngine Control Module 1GatewayTME (Thermomanagement)Torque Converter (Transmission)

How to read and clear U014100

  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 U014100 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 Brake Electronics

U010000Engine electronics (DME) control unit – no communication
U010100Lost Communication with TCM
U012600Steering-angle sensor - no communication
U012700Lost Communication With Tire Pressure Monitor Module
U012A00Control unit for chassis control (PASM) – no communication
U013400Lost Communication With Power Steering Control Module - Rear
U015100Airbag control unit - missing message
U01B400Brake booster control unit - no communication
U040100Engine electronics (DME) control unit – signal implausible
U040200Transmission control unit, signal implausible
U041900Power steering control unit – signal implausible
U042800Steering-angle sensor, signal implausible

All 317 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.