Diesel Laptops Blog


How To Clear a FPT Derate

What Does a Derate Code Mean? If your Fiat PowerTrain or other off-highway engine is giving you a derate code, it probably isn’t the only code you’re seeing. When you get a derate code it is a sign of underlying...

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Troubleshooting Cojali Jaltest Connection Issues

Connection problems with your Cojali or other scan tool don’t have to get in the way of your equipment diagnostics and repairs. Many of today’s machines communicate through using the CAN protocol.  If you cannot communicate with your scan tool,...

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Truck Air Brake System Maintenance

The following is a guest post by one of our resident Diesel Experts, Jeff Celentano! Air brake maintenance is a critical part of a truck, especially during the northern winter months when air lines are prone to freezing. In this...

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TEXA Updates: Truck V48.1 and Off-Highway V20

Still on the old TEXA software? Its time to update! TEXA has been keeping busy this month with several update releases. First was, IDC5 Truck Software Update 48.0.0 which was released earlier in the month, then a week later they...

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Learn Jaltest in Less Than a Day!

Diesel Laptops is continuing its commitment to customer education with an exciting new in-classroom training opportunity! For the first time, Diesel Laptops customers will have access to hands-on Cojali Jaltest Training designed by Master Certified Diesel Technicians. This class is designed...

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Commercial Truck Data Links and Protocols Explained

Today’s commercial trucks use data links, and the networks on them are called J1939 and J1708. The three diagnostic ports you find on commercial trucks are the 6-pin, 9-pin, and OBDII (Either wired normally or the Volvo/Mack HD OBDII). While it is true that vehicles have gotten more complex through time, they also have gotten easier to diagnose once you have the right tools and knowledge. Diesel Laptops offers a variety of online and hands-on training classes to help guide and train you on the information you need.
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