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As a fleet manager, you want to keep vehicles on the road, in optimal operating condition, for as long as possible to maximize ROI. Preventative Maintenance plans play a significant role, but what about unexpected problems that arise between regularly scheduled maintenance? That’s where Diagnostic Trouble Codes (DTCs) can help.
DTCs are codes prescribed by the Society of Automotive Engineers (SAE) to track problems detected by a vehicle's on-board computer. DTC reporting and notifications, included with the Lytx Fleet Tracking Service1, give users a real-time view of vehicle diagnostics, fuel, odometer, tire pressure, vehicle speed, and more to quickly identify and resolve maintenance issues.
See how DTCs help you spot potential maintenance problems
Manual issue reporting relies on drivers to report issues. This assumes several things: 1) that the driver understands what the DTC means, 2) that the driver will remember to report a problem, and, 3) the driver is actually aware the issue exists. Not all mechanical issues, even severe ones, are obvious, and drivers are focused on a variety of matters -- safety procedures, schedules, customer addresses -- while they work. The Lytx DTC feature takes the responsibility for reporting mechanical issues off of drivers and relies on the onboard telematics system to automatically relay the DTC code to the fleet manager in real time.
There’s never been a mechanical or maintenance issue that fixed itself, and some relatively minor issues can become major if they’re not addressed quickly. Plus, a vehicle that’s not on the road can hurt a company’s bottom line. Lytx’s DTC dashboard gives users immediate insight into potential maintenance problems so the vehicle can be fixed and back in service as fast as possible.
Some DTC codes are relatively minor and can wait until the driver gets the vehicle back to the yard. Others, such as chronic overheating or low coolant levels, can indicate engine failure and need immediate attention. By providing real-time notifications, Lytx DTCs make it possible for fleet managers and drivers to address mechanical issues, at the closest available repair facility, before they become catastrophic.
Lytx account holders can set automatic email notifications for designated recipients. When a vehicle’s OBD system captures a DTC those individuals will receive an email providing them with immediate details about the issue. Once DTCs are resolved they’re automatically removed from the account’s DTC Insights dashboard.
DTCs, combined with a comprehensive preventative maintenance program, can keep your fleet running at optimal performance with minimal frustration. A comprehensive fleet management system like Lytx makes DTCs and preventative maintenance easier than ever by automating the process of reporting vehicle malfunctions (and reducing the risk of mistakes). Our fleet management system automatically relays DTCs in real time, allowing you to monitor and address mechanical issues, as well as perform preventive maintenance by tracking wear and tear, while vehicles are operating.
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When something goes wrong in a vehicle, it can be difficult to pinpoint what the problem is, where it’s coming from, and when it started. This can impede maintenance efforts and keep a fleet from running at optimal levels.
DTCs are an easy way for technicians, engineers, and drivers to pinpoint mechanical issues.
DTCs are codes prescribed by the Society of Automotive Engineers (SAE) to track problems detected by a vehicle's on-board computer.
Every DTC corresponds to a specific problem or issue. Technicians and engineers rely on DTCs, detected by an on-board diagnostics (OBD) system, to accurately diagnose and efficiently repair issues The OBD activates the appropriate warning light on the instrument panel or dashboard, notifying the driver, and generating and sending the DTC to the fleet management system dashboard.
Similar to indicator lights on a vehicle's dashboard, DTCs indicate that there’s a problem with a vehicle. DTCs go beyond indicating, though, and actually specify what the problem is and where it’s located. A DTC is composed of five characters, each providing a critical piece of information about a specific mechanical issue. Collectively, these characters provide comprehensive information about the problem.
The first character of the DTC represents the vehicle system affected using the following values:
The second character indicates whether the code is generic, as per SAE specifications (indicated by a 0), or specific to the car manufacturer (indicated by a 1).
The third character points to the subsystem where the fault is located so engineers can go right to the problem. This third character is a number with one of the following values:
The fourth and fifth characters, ranging from 00 to 99, indicate what the actual problem is. For example, a code of 82 for the last two digits denotes a shift malfunction in the vehicle’s transmission.
Access fleet status, manage driver efficiency, and keep your vehicles running in top condition.
Track critical measures to keep your vehicles running optimally
Learn how Lytx helps fleet managers set routine maintenance intervals to keep vehicles in top working order
1Available now for light duty vehicles and coming soon for heavy duty. Must have SF-series DriveCam event recorder with included ECM cable. Not all vehicle types are supported. Compatibility is dependent on year and make of vehicle. Check with your Lytx account representative for additional details.