Code Details
| Display code | ELD Data Transfer Malfunction |
|---|---|
| SPN | Not applicable or not verified |
| FMI | Not applicable or not verified |
| OEM code | None listed |
| Manufacturer | FMCSA |
| System | Electronic Logging Device |
| Component | Roadside data transfer |
| Source address | Unknown or not applicable |
| Severity | medium |
| Review status | ai source checked |
| Source confidence | high |
| Last reviewed | 2026-05-05 |
Plain-English Meaning
ELDs must be able to output records through approved transfer methods. If transfer checks fail repeatedly, the device can show a data transfer compliance malfunction.
FMCSA guidance describes data transfer diagnostic events and compliance malfunctions based on confirmation of transfer mechanisms and repeated monitoring checks.
Common Symptoms
- Data transfer diagnostic message
- Failed email, web service, USB, or Bluetooth transfer depending on product
- Inspection output cannot be confirmed
- ELD malfunction indicator
Possible Causes
Possible causes may include the items below. The list is not a parts diagnosis.
- Network or device communication may be unavailable
- Transfer method may not be configured
- ELD app or provider service may have an issue
- Device firmware may need provider support
First Checks
- Confirm whether the ELD is showing a malfunction indicator, a data diagnostic indicator, or both.
- Record the displayed category, event time, vehicle, driver, and any related messages before clearing anything.
- Follow the motor carrier's and ELD provider's instructions for data diagnostic events.
- For malfunctions, notify the carrier and verify recordkeeping steps against current FMCSA requirements.
Can I Keep Driving?
This is a compliance and inspection-readiness issue. The truck may drive normally, but the driver and carrier should address it promptly.
Related Codes
Related Lookup Pages
Sources
- ELD Malfunctions and Data Diagnostic Events Federal Motor Carrier Safety Administration · government · accessed 2026-05-05 · confidence high
Source: Federal Motor Carrier Safety Administration, ELD Malfunctions and Data Diagnostic Events. This page paraphrases factual fields only and is not a substitute for the original document.
Open source - 49 CFR Part 395 Appendix A to Subpart B - Functional Specifications for ELDs Electronic Code of Federal Regulations · government · accessed 2026-05-05 · confidence high
Source: Electronic Code of Federal Regulations, 49 CFR Part 395 Appendix A to Subpart B - Functional Specifications for ELDs. This page paraphrases factual fields only and is not a substitute for the original document.
Open source
FAQ
Is a data transfer malfunction the same as an engine fault code?
No. ELD malfunction and data diagnostic categories relate to electronic logging compliance and recorded hours-of-service data. They may involve vehicle data, but they are not the same thing as an engine ECM DTC.
Can this page replace the ELD provider's instructions?
No. ELD products vary, and the provider's instructions and the motor carrier's procedures should be used for the specific device.
Should a driver ignore an ELD data diagnostic event?
No. A data diagnostic event signals a data inconsistency. FMCSA guidance says the driver should follow the motor carrier's and ELD provider's recommendations to resolve it.