What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer wording
Source wording can vary by vehicle and suffix. It is shown as written, not as a universal diagnosis.
U0401Implausible Data Received From ECM/PCM - Signal InvalidU0401Implausible Data Received From ECM/PCM - Signal InvalidU0401-00Implausible Data Received From ECM/PCMU0401-00Implausible Data Received From ECM/PCMView all · Manufacturer wording →
Manufacturer communications
79Original wording in English
MAZDA
Reported code forms U0401
Some vehicles may display some (or all) of the following symptoms: • Check engine light on with DTC P061B • Light increase in engine rpms during acceleration • Transmission will not shift past 4th gear • Various U codes…
CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
CHEVROLET, GMC
Reported code forms U0401
This technical bulletin provides a procedure to correct the condition of Intermittent No Power or Vehicle will Hesitate DTC P0700, P0EFF, U1611, U0401.
CHEVROLET
Reported code forms U0401
This service bulletin provides information to correct a customer concern of Check Engine Light or Malfunction Indicator Lamp Illuminated with DTCs U0401 and/or U1611 Set.
Check vehicle applicability
163A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Bentley | CONTINENTAL GT | 2023 |
| Bentley | CONTINENTAL GT | 2022 |
| Bentley | CONTINENTAL GT | 2021 |
| Bentley | CONTINENTAL GT | 2020 |
| Bentley | CONTINENTAL GT | 2019 |
| Bentley | CONTINENTAL GT | 2018 |
| Bentley | CONTINENTAL GT CABRIO | 2023 |
| Bentley | CONTINENTAL GT CABRIO | 2022 |
| Bentley | CONTINENTAL GT CABRIO | 2021 |
| Bentley | CONTINENTAL GT CABRIO | 2020 |
| Bentley | CONTINENTAL GT CABRIO | 2019 |
| Bentley | CONTINENTAL GT CABRIO | 2018 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.