Freeze Frame data is a snapshot of the engines' live values when a fault occurs.  Typically when you hear freeze frame data you associate it with the automotive or heavy-duty truck market however it is also used in off-highway engines.  This is especially helpful if you are trying to diagnose...

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 problems. Some of the most common underlying problems that lead...

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, this may be due to a problem on the vehicle...

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 post, we will cover the details of proper air brake...

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 to teach students the ins and outs of Cojali Jaltest...