1. This is a testing platform for OBDII protocol detection and communication diagnostics. 2. Converts the vehicle's OBD2 interface to 6-pin configuration for signal detection and voltage level conversion. 3. Compatible with most diagnostic tools to assess vehicle communication status. 4. Provides power supply during battery replacement to help prevent loss of control module data, system lockouts, remote key malfunctions, or warning light activation. Special Features: 1. Helps diagnose faults in the OBDII interface. 2. Battery replacement support tool. 3. Voltage transfer functionality. OBDII Protocol Detector & Communication Detection: 1. Connect the OBDII Break Out Box to the vehicles OBDII diagnostic port. 2. Device displays system voltage. 3. Connect diagnostic tool; when communication occurs, corresponding protocol LED indicators illuminate or flash. (CAN protocol illumination will be brightest during communication.) Functions: - Displays testing voltage on car or truck - Shows communicating pin number - Acts as an extension for OBD Diagnostic Link Connector - Enables pin short-circuit testing - Detects isolated circuit issues - Serves as a power extension cord for small DC testers requiring external power (up to 1.2 amps) - Allows circuit testing using a multimeter or oscilloscope - Checks Power (Pin 16), Chassis Ground (Pin 4), and Signal Ground (Pin 5) - Helps preserve ECU data when replacing the vehicle battery Note: Product design may vary slightly between batches. Actual product may differ in appearance or color, which does not affect performance. Color: As shown in photos Material: ABS Package Contents: 1 x Car OBD Break Out Box Tool Note: Light reflection and display settings may cause slight color differences between image and actual item. Measurement error allowance: +/- 1-3 cm.