Turn the ignition to the "ON" or "RUN" position without starting the engine (unless performing a live data test).
Generally supports most petrol vehicles from 1996 and newer; diesel support typically began between 2004 and 2006. How to Use the ET97 Scan Tool Mac tools et97 user Manual
The Mac Tools ET-97 set includes:
Ensure the alligator clip has a clean, metal-to-metal connection. Rust, paint, and grease block the electrical path. Turn the ignition to the "ON" or "RUN"
The is more than a booklet of specifications—it is your roadmap to safety, accuracy, and tool longevity. Whether you download the PDF to your phone for quick reference at the job site or keep a printed copy in your toolbox, taking the time to read and understand its contents will transform you from a casual user into a confident diagnostician. Rust, paint, and grease block the electrical path
Use the device's on-screen menu to select the function you need:
The core purpose of the ET97 is to interface with a vehicle's onboard computer system to retrieve , which are a primary step in identifying issues with engine performance, emissions systems, and other electronic components.