Code Details
| Display code | ELD Missing Required Data Elements |
|---|---|
| SPN | Not applicable or not verified |
| FMI | Not applicable or not verified |
| OEM code | None listed |
| Manufacturer | FMCSA |
| System | Electronic Logging Device |
| Component | Required log data fields |
| Source address | Unknown or not applicable |
| Severity | low |
| Review status | ai source checked |
| Source confidence | high |
| Last reviewed | 2026-05-05 |
Plain-English Meaning
The ELD detected that an event record did not include all required information. The missing field could involve vehicle, driver, carrier, location, or other required ELD record data depending on the product and event.
FMCSA guidance describes this diagnostic event as occurring when any required data field is missing at the time of recording.
Common Symptoms
- Data diagnostic indicator
- Prompt to add or review missing information
- Incomplete log event
- Uncertified or edited record warnings may appear
Possible Causes
Possible causes may include the items below. The list is not a parts diagnosis.
- Driver, vehicle, trailer, or shipping data may be incomplete
- ELD could not read vehicle data
- Location or time data may have been unavailable
- Account setup or provider sync may be incomplete
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 generally a record accuracy issue. Resolve the missing information through approved ELD workflows and carrier policy.
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 missing data diagnostic event 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.