The analyzer will need to be connected to the vehicle’s DLC to perform the OBD-II test. Remember to ensure that the Diagnostic Link Connector must be available, unobstructed, unmodified, and undamaged to proceed. If aftermarket wiring or non-pass-through accessories are present, do not connect the analyzer. To connect the analyzer, simply connect the analyzer OBD-II plug to the vehicle OBD-II connector. Follow the remaining analyzer prompts until the test is complete.