These are used with gm variable control compressors and displacement compressors. If the air conditioning pressure sensor or switch is faulty then the obd ii code will relay that information to you through the scanner.
Ac Pressure Switch Yotatech Forums
How to jump 4 wire ac pressure switch. Touch the probes of the multimeter to the electrical harness end of. If you jump the low pressure switch with the engine running do it only for a few seconds. 2 blue and 2 green. Im trying to help diagnose my friends 1996 4cyl camry air conditioning problem. The ac runs perfectly but you cannot control it with the button. The three wire switches is also called as pressure transducers.
How to jump 3 wire ac pressure switch. One might wonder how to jump 3 wire ac pressure switch by own. I want to jump the lowhigh pressure switch at the receiver but it has 4 wires not the standard 2 i have seen. Low ac pressure will prevent the relay from sending power to the ac compressor clutch. Remove the air conditioning pressure sensor and test the electrical connection leading to the sensor from your vehicles electrical harness. You can jump three wire ac pressure switch to control the ac system as well.
You might have to do some repairs by yourself to make it run correctly again. Do not jump the low pressure switch to operate the compressor non stop so you can add refrigerant. Jump the low pressure switch only to test the circuit. 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. Ac systems in vehicles run with a pressure switch. Does anyone know which wires i should be jumping to see if the compressor is good.
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