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.
U0404Invalid Data Received From Gear Shift Control Module "A"U0404Invalid Data Received From Gear Shift Control Module "A"Manufacturer communications
9Original wording in English
LAND ROVER
Reported code forms U0404-64
A customer may be unable to select a transmission gear and/or start the engine. A 'Gearbox fault' message may also be displayed on the Instrument Cluster. Switching the ignition 'OFF' and then 'ON' clears the fault.…
LAND ROVER
Reported code forms U0404-64
A customer may be unable to select a transmission gear and/or start the engine. A 'Gearbox fault' message may also be displayed on the Instrument Cluster (IC). Switching the ignition 'OFF' and then 'ON' clears the…
DODGE, JEEP
Reported code forms U0404
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator…
DODGE, JEEP
Reported code forms U0404
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator…
DODGE, JEEP
Reported code forms U0404
Flash: Transmission Diagnostic And Shift Enhancements This bulletin involves reprogramming the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator…
JEEP
Reported code forms U0404
Flash: Transmission Enhancements This bulletin involves reprogramming of the Transmission Control Module (TCM) with the latest available software. Some customers may experience a Malfunction Indicator Lamp (MIL)…
Check vehicle applicability
9A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | A8 | 2013 |
| Audi | A8 | 2012 |
| Audi | A8 | 2011 |
| Audi | A8 | 2010 |
| Dodge | DURANGO | 2016 |
| Jaguar | F-TYPE | 2014 |
| Jeep | GRAND CHEROKEE | 2016 |
| Land Rover | RANGE ROVER SPORT | 2018 |
| Land Rover | RANGE ROVER SPORT | 2017 |
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.