Most advanced automotive scan tools come equipped with bi-directional control capabilities. However, many technicians and DIY enthusiasts primarily utilize these tools for basic functions like reading diagnostic trouble codes and examining parameter data. Bi-directional control, in essence, is the ability of a device to both send and receive information between two communication points. In modern vehicles with sophisticated computer control systems, an Obd Scanner Bi Directional is designed to interact dynamically, requesting information and relaying commands to perform specific tests and functions. You might also hear bi-directional controls referred to as actuator tests, functional tests, system tests, or active tests, all describing similar functionalities. Furthermore, reprogramming modules is also considered a form of bi-directional control.
The key difference between an obd scanner bi directional and a standard OBD2 scanner lies in this interactive capability. Regular OBD2 scanners are limited to retrieving data from the vehicle’s computer systems. In contrast, a bi-directional scan tool allows for sending commands to the vehicle, enabling active testing. This bi-directional control is crucial for mechanics to pinpoint issues effectively. By initiating active tests, they can directly command components to operate and observe their responses, quickly identifying malfunctions. For instance, bi-directional controls make it possible to toggle relay fans on and off or activate the fuel pump independently of the engine’s normal operation. This direct control helps isolate problems related to specific components or circuits.
Consider these examples of bi-directional tests available for a 2016 Chevy Silverado V8 5.3L engine, as verified by our coverage checker. It’s important to note that bi-directional testing is typically found in more advanced scan tools, such as our 5610, 5160RS, and tablet models.
Note: https://www.innova.com/pages/coverage
To illustrate the practical application of obd scanner bi directional capabilities, the Innova 5610 offers a purge valve diagnosis function. This active test allows a technician to command the purge valve to open and close, verifying its functionality and the integrity of the evaporative emissions system.
Another demonstration of the active testing prowess of the Innova 5610 bi-directional scanner is showcased here. These examples highlight how bi-directional control expands diagnostic possibilities, moving beyond simple code reading to active component testing and system verification, making the obd scanner bi directional an indispensable tool for comprehensive vehicle diagnostics.
