The Actron Model 2994 is a professional sensor tester and simulator designed for diagnosing electronic engine control systems. It features numeric and bar graph displays to measure input signals from sensors or generate output simulation signals for testing vehicle control modules.
The manual covers safety precautions, basic operation of the tester's controls including range selection and signal type switching, and detailed procedures for connecting the device to various vehicle sensors such as Mass Air Flow (MAF), Manifold Absolute Pressure (MAP), Throttle Position (TP), Oxygen, and Knock sensors.
The tool can check vehicle sensors as well as simulate sensor signals to test vehicle control systems.
The display will blink when signals are too large to be measured, indicating an overrange condition.
The LOW setting measures a range of 0 to 1 volt or 0 to 200 Hz.