Most advanced automotive scan tools are equipped with bidirectional control capabilities, yet many technicians and DIY enthusiasts primarily utilize them for reading diagnostic trouble codes and examining parameter data. Bidirectional control refers to the two-way communication between a diagnostic tool and a vehicle’s computer system. Modern vehicles are designed to allow OBD2 scan tools to not only receive information but also to send commands to perform specific tests and functions. You might also hear bidirectional controls referred to as actuator tests, functional tests, or system tests. Reprogramming functionalities also fall under the umbrella of bidirectional control.
Unlike basic OBD2 scanners that only retrieve data, a bidirectional scan tool enables users to send commands to the vehicle. This capability, known as bidirectional control, is invaluable for mechanics to pinpoint issues effectively through active tests. For instance, bidirectional controls can be used to toggle relay fans or cycle the fuel pump on and off, facilitating the diagnosis of operational anomalies.
Below are examples of bidirectional tests supported on a 2016 Chevy Silverado V8 5.3L engine, as verified by our coverage checker. It’s important to note that bidirectional testing is supported by our 5610, 5160RS, and tablet models.
Note: https://www.innova.com/pages/coverage
The video below demonstrates the bidirectional capabilities of the Innova 5610, showcasing a purge valve diagnosis in action.
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Another practical example of a bidirectional active test achievable with the Innova 5610.
