An automotive oscilloscope is a test instrument that displays voltage as it changes over time, drawing the signal as a live graph called a waveform. Where a multimeter gives you a single number, an oscilloscope shows you the shape, speed,…
1. Introduction When you press the gas pedal, the engine generates power. However, that power must travel a long path before it reaches the ground and moves your vehicle. The drivetrain axles are the final link in this chain. They…
1. Introduction Understanding how a vehicle moves can seem complex. When you press the gas pedal, the engine creates power. However, that power must travel through a system to reach the wheels. A key part of this system involves the…
1. Introduction Understanding how your vehicle moves can seem difficult. However, the concept becomes clear when you look at the connecting parts. The engine generates power, but that power must travel to the wheels. Automotive driveshafts play a major role…
1. Introduction Understanding how your vehicle moves can seem difficult, but it becomes simple when you look at the drivetrain. At the end of this system, near the wheels, you will find CV joints. These parts are very important. They…
When the check engine light comes on, your vehicle is trying to tell you something specific — not just “something is wrong.” OBD2 diagnostics is the built-in system that makes this communication possible, and diagnostic trouble codes (DTCs) are the…
Every modern car and light truck carries a quiet passenger: a built-in system that continuously checks the engine, the fuel system, and the emissions equipment while you drive. That system is called OBD2, which stands for On-Board Diagnostics, second generation.…
A check engine light tells you that something happened. OBD2 live data monitoring tells you what is happening right now. Instead of only reading a stored trouble code, a scan tool connected to your vehicle can display sensor values and…
When a warning light appears on the dashboard, the fastest way to learn what happened is to connect a scan tool. OBD2 scanners are the most widely used piece of automotive diagnostic equipment, and for good reason: they plug into…
When the check engine light turns on, your vehicle has already written down a message about what it noticed. Automotive code readers are the tools that let you read that message. For many car and light-truck owners, a code reader…