: Connect this to the ECM to measure signals without piercing wires.
: You can interact with parts such as the Battery, Spark Plugs, Injectors, MAF sensors, and the Engine Control Module (ECM). Standard Troubleshooting Workflow
This scoring model mirrors real-world shop expectations—customers pay for solutions, not guesswork.
Each component has a pop-up info tab. Hover over parts like the relay or fuse box—it often tells you the pinout or expected values.