System leaked to the point where the high pressure side is less than 29 psi. This opens the pressure switch and disconnects the clutch. To get the compressor going again, we have to energize the clutch by bypassing the pressure switch. Have done this before on other makes, but usually the pressure switch is a simple two lead situation. On the Elantra the Koreans have made it a four lead situation, and we are not sure which contacts to jumper.
Friday, April 1st, 2011 AT 1:21 AM