The J2534 standard was solidified with the implementation and adoption of the Right to Repair Memorandum of Understanding (MOU). In 2004, SAE International J2534 Standard was introduced to “Provide the framework to allow reprogramming software applications from all vehicle manufacturers the flexibility to work with multiple vehicle data link interface tools from multiple tool suppliers,” according to the SAE International website.Įssentially, this allows the automotive aftermarket access to any emission-related programming OEM information in a standardized format. “Tool and software developers had to communicate with all of these different formats” prior to the J2534 standard. “This made diagnostics and reprogramming different for every manufacturer, even individual car platforms within the same manufacturer,” says John McNelis, Manager, Sales and Marketing, DG Technologies. Prior to this standardization, many OEMs would use their own unique software language to communicate with a vehicle’s ECU for software updates.
Add all the negative aspects together of not owning a J2534 device, then the cost of owning one becomes a no-brainer," says Eaton. Imagine the extra time required to send the vehicle elsewhere, perhaps involving towing as well and holding the customers vehicle for a longer period of time, which greatly affects the customers satisfaction. "What better way to increase a shops capability and service opportunities than to have their own J2534 tool? Without one, the shop is sending the vehicle elsewhere for that service, or simply turning away that business. "Programming has been, and is now even more of, an important tool to add to the shop's toolbox," Eaton says. Tool manufacturers and OEs alike have made significant improvements in how the tools are made and how the software is written."īefore having access to the necessary information to complete reflashing, independent repair shops would send customers back to the dealership to have this service completed, or they might call a mobile diagnostic technician complete the service. "With later vehicle models having more and more modules and sensors, more manufacturers are providing more ECU programming capabilities and relearn procedures than ever before.
"The J2534 market has seen significant changes over the past (several) years," says Glen Eaton, Product Manager, J2534 Products, Drew Technologies. Reflashing, sometimes referred to as reprogramming, is the process of updating a vehicle’s ECU calibration software with an updated version of the software. This includes the OEM software information needed to complete vehicle reflashing. Beginning with model year 2018, automakers will be required to provide all OBD-II information necessary for diagnosis and repair of vehicles.
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