I'm almost finished with my '95 YJ A/C kit install. Everything's in and the system is charged. When the system calls for air and the voltage goes high to the compressor, it jumps to 12V for about three seconds and then drops to zero. I tried jumping the low/high pressure switch but I get the same result. If I run a hot wire directly from the battery to the compressor, it cools the system just fine. Does anyone have a clue what I should troubleshoot?