Never connect the ET97 to AC household current or circuits exceeding 30V DC.
The Mac Tools ET97 is a professional-grade, auto-ranging digital multimeter tailored for automotive diagnostics. It is designed to handle the rigors of a shop environment while providing precise readings for voltage, resistance, continuity, and specialized automotive functions.
He set it to . The screen flashed to confirm the target was locked in.
Connect the inductive pick-up clamp around a spark plug wire. Set dial to RPM and select the appropriate cylinder count. Duty Cycle ( Mac tools et97 user Manual
Regular maintenance is essential to extend the life of your Mac Tools ET97. Here are some tips:
Note: For some vehicles, you may need to plug the unit into a USB power source to turn it on before connecting to the car. 5. Navigating the Interface The ET97 uses a simple, menu-driven navigation system. Scroll through menu options. OK Button: Select an option or confirm a command. Back/Exit Button: Return to the previous screen. 6. Key Features and Functions
Disclaimer: This article is for informational purposes. Always refer to the official Mac Tools ET97 User Manual for safety warnings and device-specific instructions. Product designs and specifications may change over time. Never connect the ET97 to AC household current
Compatible with multiple OBD II protocols, though users may need to manually select the correct one if communication errors occur.
| Category | Available Functions on ET97 | | :--- | :--- | | | ✅ Read Diagnostic Trouble Codes (DTCs) | | | ✅ Clear/Erase Diagnostic Trouble Codes (DTCs) | | | ✅ View and graph Live Data (e.g., engine RPM, fuel trims, oxygen sensor readings) | | Diagnostic Limits | ❌ Cannot clear Transmission (TCM) trouble codes | | | ❌ Cannot clear Airbag (SRS) trouble codes | | | ❌ Primarily not a re-learn/programming tool for functions like crankshaft/camshaft correlation | | Software & Power | 🔌 Internet-updateable via computer | | | ⚡ Powered by 12V vehicle battery (via OBD2 port) |
This technical section is vital for professional use. You will find: He set it to
: Allows technicians to view real-time sensor, switch, and relay inputs while the engine is running to pinpoint intermittent issues. Vehicle Information
| Code | Meaning | |------|---------| | E-71 | Grief stored in right shoulder | | E-84 | Unspoken apology, pending | | F-01 | Key left in ignition of a person who is no longer there |