Mac Tools Et97 User Manual Best -

| Desired Test | Select Function | Lead Connection | Notes | |--------------|----------------|----------------|-------| | Battery voltage | | COM + VΩ | Expect ~12.6V engine off, ~14.2V running | | Injector pulse | Duty cycle % or ms | COM + VΩ (back probe connector) | Engine running | | Resistance | Ω (with relative mode) | COM + VΩ | Subtract lead resistance | | Temperature | °C or °F | K-type probe into COM + VΩ | Clip near heat source | | Continuity | Ω then Mode button for buzzer | COM + VΩ | Buzzer sounds below ~30Ω |

Jake slid the socket onto the drain plug. He started turning. He was used to waiting for a mechanical "click" that you can barely hear over an engine running. Mac tools et97 user Manual

Finally, he turned the key. The engine rumbled. The scanner screen dimmed to standby, but one line remained, glowing faintly in the dark cab: | Desired Test | Select Function | Lead

Select the appropriate vehicle system (typically Engine or Powertrain). Finally, he turned the key