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