Volkswagen ID.3

U14FE

Warning

Lost Communication with High Voltage Battery Control Module

Severity
Warning
Category
Network
Code Type
Manufacturer Specific
Applicable Regions
EU, US

What does U14FE mean?

Fault code U14FE means "Lost Communication with High Voltage Battery Control Module". This is a Volkswagen-specific EV diagnostic trouble code for the VW MEB platform. It is classified as "network" with a severity level of "warning". Applicable models: ID.3, ID.4, ID.5, ID.7, ID.Buzz. [Volkswagen Group (MEB) EV-specific: Lost Communication with High Voltage Battery Control Module. Applies to: VW ID.3, VW ID.4, VW ID.5, VW ID.7, VW ID.Buzz, Skoda Enyaq, Skoda Elroq] [Audi EV-specific: Lost Communication with HV Battery Control Module. Applies to: Audi Q6 e-tron (2024+), Audi SQ6 e-tron (2024+), Porsche Macan EV (2024+), Audi Q4 e-tron (2021+), Audi Q4 Sportback e-tron (2021+)]

Possible Causes

  • CAN bus communication timeout
  • Control module offline or not responding
  • Wiring harness damage or short circuit
  • Software version mismatch between modules

Recommended Actions

  1. 1 Schedule service as soon as possible
  2. 2 Reduce driving speed and avoid long trips
  3. 3 Monitor for additional warning messages
  4. 4 Have the vehicle diagnosed by a certified technician

This code applies to all vehicles. View generic U14FE information →