Home › Fault codes › U041600

U041600 — Data bus - fault value received

Data bus - fault value received. 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 U041600

Porsche Taycan

Air ConditioningEngine Control Module 1Lock Electronics

Porsche 911 (992)

Battery Energy Control ModuleEngine Control Module 1PDK Transmission

Porsche Panamera (971, 2017–2023)

Air ConditioningBattery Energy Control ModuleEngine Control Module 1GQS (Quersperre)PDK Transmission

Porsche Panamera (972, 2024–)

Air ConditioningBattery Energy Control ModuleEngine Control Module 1GQS (Quersperre)PDK Transmission

Porsche Cayenne (9YA)

Air ConditioningBattery Energy Control ModuleEngine Control Module 1GQS (Quersperre)Torque Converter (Transmission)

How to read and clear U041600

  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 U041600 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 Air Conditioning

U020700Control unit for front panoramic roof - no communication
U020A00Control unit for rear panoramic roof - no communication
U021200Steering wheel electronics control unit – missing messages
U040100Engine electronics (DME) control unit – signal implausible
U040200Transmission control unit, signal implausible
U041300High-voltage battery control unit, signal implausible
U042200Front-end electronics control unit (BCM1) - signal implausible
U042300Instrument cluster control unit – signal implausible
U042500Auxiliary heater control unit – signal implausible
U045200Airbag control unit - signal implausible
U045600Thermal management control unit - signal implausible
U101100Supply voltage – too low

All 418 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.