16pin OBD2 Breakout Box OBDII Protocol Detector Diagnostic Signal Connector Rapid Detection Tool for Vehicles Item Type: OBDII Protocol DetectorMaterial: PlasticFunction Introduction:This OBDII Protocol Detector Break Out Box has wide range of applications in diagnostics, key programming and chip tuning:  1. To monitor data steam while performing test on vehicle using a Scantool. This makes it possible for you to both execute a test and simultaneously monitor the testing process; 2. Display testing voltage on the car or truck; 3. Display communicating pin number; 4. An extension of OBD Diagnostic Link Connector (DLC); 5. For short circuiting of pins;  6.To detect isolated circuits problems;  7. Is a power extension cord for small DC testers that need an external power source (maximum 1.2 amps.);  8. To test circuits with a meter or scope; 9. To check Power (Pin 16), Chassis Ground (Pin 4) and Signal Ground (Pin 5);10. Save ECU data when replacing vehicle battery.