If the hi/lo beam doesn't work after installing the bi-xenon hid kit, it is a common problem associated with polarity from the relay harness connector. Each vehicle manufactures uses a different configuration for Ground/ Low / High beam. You can easily swap the pins on the relay harness connector.<br /><br />1. Find a small flat screwdriver.<br /><br />2. There are 3 pins on the connector. Remove the pins from the connector using the screwdriver, as shown in the video.<br /><br />3. Try swapping two pins. According to our experience, please try swapping the white and blue wire first. This can solve the problem on most cars.<br /><br />4. Insert the pins directly into your stock harness socket to test the new configuration. If it still doesn't work, pull the pins out and try a new configuration until you find out the correct configuration for your car to get both high and low beams.<br /><br />5. Insert the pins back into the relay harness connector according to the correct configuration that you find out in the last step.
