Anyone can recharge their air conditioning system in there. Car, truck, or passenger vehicle. But there are steps to take for the best results. In this video, I will show you how to achieve the results you're looking for. We will see how to test an AC relay. How to jump the relay in order to engage the AC cluch to the compressor. So you can properly install 134A freon into the compressor. In order to get cold air and get the AC unit working properly. Use this video as a guide for success. I will not accept any responsibility for injury or damage.