Do not jump the low pressure switch to operate the compressor non stop so you can add refrigerant. Disconnect the negative battery cable.
Help No Power To Ac Compressor Ford Truck Enthusiasts Forums
Diagram how to jump 3 wire ac pressure switch. If you jump the low pressure switch with the engine running do it only for a few seconds. One might wonder how to jump 3 wire ac pressure switch by own. Maybe they filled it and didnt check for leaks. Remove the switch electrical connector. You might have to do some repairs by yourself to make it run correctly again. Ive tested the voltage on the signal wire at the ecu and got 02v with engine running and ac on.
How to jump 3 wire ac pressure switch. Then set it aside. Low ac pressure will prevent the relay from sending power to the ac compressor clutch. It so happens that on some vehicles cadillacs the high pressure sensor is connected to the other sensor voltage reference line. Ac systems in vehicles run with a pressure switch. So a shorted sensor will render the crank sensor inoperable.
It does the process by monitoring fan operation high pressure and low pressure then sending the information back to the computer for it to analyze. Jump the low pressure switch only to test the circuit. The ac runs perfectly but you cannot control it with the button. I think the problem lies in the low voltage coming out the sensor. These are used with gm variable control compressors and displacement compressors. The pressure switch can be mounted to ac pressure line compressor or accumulatordrier.
Part 2 of 3. You can jump three wire ac pressure switch to control the ac system as well. The three wire switches is also called as pressure transducers. So ive sent him back to the place that regassed the ac to have it pressure checked. Disconnect the negative battery cable with a wrench of ratchet. Maybe they just told him.
Remove the ac pressure switch.
Gallery of Diagram How To Jump 3 Wire Ac Pressure Switch
