How do you bypass a high-pressure switch?
How do you bypass a high-pressure switch? To see if the switch is working right, you can check it for voltage with a power meter or multi-meter. You can also temporarily bypass the pressure switch by using a jumper wire to make good contact with both terminals on the switch. If the switch is the problem, bypassing it should allow your heater to start running. Where is the high-pressure switch located? The high-side switch is located on the smaller of the two air conditioning lines close to the radiator on the passenger side of the vehicle. The low-side switch will...