The Sensor Stimulator from Prologics can simulate various signals to test the ECM/ECU and the wiring harness on a vehicle. Suited for all vehicles with 12V/24V systems, the stimulator can simulate the Crankshaft Position, Camshaft Position, ABS, Wheel Speed, and Coolant Temperature sensors. The tool also features a hand grip for egonomics and an LED light for brighter access to wire and connector locations, and measures 9.8" by 3.1" by 7.8".