ELD Failures and DOT Inspection: Common Problems and Fixes

ELD failures can ruin an otherwise perfect DOT inspection, so our mechanics want to make sure you’ve got a few quick fixes under your belt.

ELD stands for Electronic Logging Devices, which synchronize with your commercial vehicle engine to automatically record data. ELDs keep drivers, dispatchers, and owners updated on the real-time status of a vehicle, assisting in fleet management, inspections, repairs, and planning. They are required by most motor carriers and drivers who are required to maintain records of duty status (RODS). Below, we’ve outlined the most common issues with Electronic Logging Devices and how to fix them.

#1. ELD Power Supply Issues

If your ELD display does not turn on after one minute of powering up the vehicle, you may have a power supply issue. Check all connections and inspect the cables and fuses to make sure it isn’t a physical issue with the device. If that doesn’t resolve anything, try restarting the device; a simple reboot may solve your power issue. Otherwise, you will have to switch to manual logs for the duration of the outage. Be sure to report the malfunction within 24 hours to stay compliant with Federal Motor Carrier Safety Administration (FMCSA) regulations.

#2. Synchronization Between the ELD and ECM

The ELD should be synchronizing with your truck’s Electronic Control Module (ECM), which ensures the smooth operation of the engine by collecting data from vehicle sensors. If these 2 components are not communicating, you have a synchronization issue. Be sure the ELD is properly plugged in and that there are no loose connections. Update firmware and software. If neither of those work, try reinstalling the app for the ELD or reset your device.

Again, if you still cannot get your ELD to function, you must report it within 24 hours and switch to paper logs until repairs are done. Repairs must be completed within 8 days.

#3. Clock Malfunctions

Most ELD models run off of Coordinated Universal Time (UTC). If the clock on your device is more than 10 minutes away from UTC at any given time, you have a timing issue. Restarting the ELD often resolves the problem, but if not, you can try a manual factory reset.

#4. GPS Accuracy Issues

Your Global Positioning System, or GPS, allows the ELD to capture location-based data. As with other common ELD malfunctions, GPS problems may be resolved by a simple reboot. If not, make sure the antenna is in good shape and test the signal strength. Try moving to an open area if you cannot get a signal.

#5. Data Recording Failures

What good is data if it’s not recorded? Sometimes, ELD failures come in the form of data recording malfunctions. They could be caused by a lack of storage or corrupted files. Check if you need to clear out storage space, or if your software needs to be reinstalled. If not, contact the ELD manufacturer’s support line, as you may need more advanced technical support specific to the device model.

#6. Data Transfer Issues

If your data is all there but it simply fails to send the logs to enforcement officials, it’s a data transfer malfunction. Poor cell phone service or weak Wi-Fi could be the root cause. If improved signal doesn’t help, try a thumb drive or email as a quick fix. If nothing else is working, you may have to print it out or show your screen to an enforcement official.

Having ELD failures you don’t think you can solve yourself? No worries! M&L Truck Service is happy to assist you with repairing or replacing your ELD system. Let us know what we can do for you!

Meet M&L Technician Andrew Dhue

Andrew is a medium- and heavy-duty truck mechanic at our Federalsburg location. His first car was a 2002 Chevy Silverado and his favorite tool is a pocket knife.