Learn about Noregon's 30-year history helping the industry maximize uptime and advance technician skillsets. OTHER Learn about Noregon's 30-year history helping the industry maximize uptime and advance technician skillsets. OTHER Tech Tips: Fault History Take this information with you to save for later. Aftertreatment Diagnostics Let’s begin by launching Aftertreatment Diagnostics from the JPRO toolbar and examining the checklist. Notice the top item in red, which states to review the vehicle history. Doing so can help you understand how the issue was previously solved, or let you avoid a similar misdiagnosis. Now let’s go back to JPRO’s home screen and launch Fault History. Select a fault from the list. If the Click to Launch Fault History button is active, select it. Now you can see all instances of this fault from previous connections. If your organization handled the repair, locate and examine the repair order. If the issue was fixed, you may need to follow a similar procedure. If the previous repair was only a temporary solution, you know not to repeat the mistake and can begin troubleshooting elsewhere. Remember, the next time an aftertreatment issue arises, check the fault history feature available with your JPRO subscription. Tying It All Together Subscribe for more insights Get the latest tech tips, training, and updates delivered to your inbox. A Modern Approach to CAN Bus Diagnostics Why traditional CAN bus diagnostics fail and how modern diagnostics identify faults faster. Guide to CARB’s Clean Truck Check Learn about California’s Clean Truck Check program and how to stay compliant with new requirements. A Technician’s Guide to DPF Regens Learn the importance of DPF regens and the costs and consequences of running them unnecessarily. Small Town Shop Offers Big-Time Services Learn how Van Cleef Auto Parts uses TaaS to provide leading service, versatility, and customer satisfaction. This whitepaper explores the 2026 economic outlook, industry trends, and customer research findings. 10 Steps Before Clearing Fault Codes Learn the 10 steps to take before clearing a fault code to avoid recurring issues. Streamline the Diagnostic Process As shops take inventory of their diagnostic tools, it's vital to consider the importance of tech-to-tool ratios. Differences Between OE and SAE Fault Codes Learn the differences between OE and SAE fault codes and how JPRO can simplify fault code analysis. Ways to Recruit & Retain Skilled Truck Drivers Explore the most effective ways to recruit and retain the backbone of the American economy: truck drivers. ©Noregon. JPRO, NextStep, and TripVision are registered trademarks of Noregon. All Rights Reserved.