The system works like this:
* Power Source: A fused 12V source provides power to the A/C compressor clutch relay.
* Relay Activation: The relay is activated by a signal wire from the A/C control system (often a low-current signal). This signal is what tells the relay to close, completing the circuit and supplying power to the clutch.
* Clutch Coil: The clutch coil (which engages the compressor) receives power through the relay. The green and brown wires are likely part of this circuit. One carries power, and the other is likely a ground.
You should NOT attempt to directly jump the wires. Doing so could damage the compressor clutch, the relay, or other components in the system. Improperly jumping the wires could also lead to a short circuit, potentially causing a fire.
To properly recharge your AC system:
1. Identify the Low-Side Port: This is typically the smaller of the two ports on your AC compressor. It's usually marked with a smaller cap and sometimes a label specifying "Low" or using a different color.
2. Use an AC Charging Kit: You'll need a refrigerant charging kit with gauges to monitor the pressure.
3. Follow the Instructions: The kit will have instructions on how to properly evacuate the old refrigerant, and then add the correct amount of new refrigerant and oil (if needed). Attempting to recharge without proper equipment and knowledge will likely result in further damage or injury.
If you're unsure about any part of this process, it's best to take your vehicle to a qualified mechanic for AC service. They have the proper equipment and expertise to diagnose and fix the problem safely and correctly.
