What is the P0533 fault number? A/C Refrigerant Pressure Sensor “A” Circuit High Input failure description? How do I fix P0533 error code? What are the symptoms and causes for the P0533 fault code
What is the P0533 fault code? What does it all mean?
The P0533 code is an indication that the voltage signal coming from the A/C pressure sensor “A”, circuit is too high. This problem is detected by the powertrain control module (PCM), which sets fault code P0533, and activates the check engine lamp.
Your windows are protected from frosting and the air conditioning system keeps you cool during summer. The air conditioning system is simply a heatpump that transfers heat within the vehicle via a fan and radiator. R-134a refrigerant is the key to heat pumping. It circulates through the system via a series of pipes, hoses and hoses. The air conditioning system can be divided into two parts: the high pressure side and the low pressure side. The compressor is where the high pressure side begins and ends. The compressor is the low pressure side. It starts at the expansion valve. The high pressure side is responsible for absorbing heat from the passenger area and sending it to the condenser, which then releases it to the atmosphere. The compressor then returns the refrigerant to it, continuing the cycle.
Refrigerant pressure is generally between 190 psi and 240 psi at the high side. It can also range from 20 psi and 35 psi at the low end depending on system design and atmospheric conditions. Driver demand may also affect the refrigerant pressure. The PCM monitors one to three refrigerant pressure sensors in order to operate the belt-driven A/C compressor. It also measures system performance.
The PCM will stop the compressor from running if it detects that the refrigerant level is too high or low. Fault code P0533 is triggered if the voltage signal from circuit “A”, or the refrigerant pressure sensor, is higher than what the PCM expects. This code can also be used to set other air conditioner fault codes, such as P0530, P0531, and P0532.
P0533 fault codes can be found on vehicles made by Dodge, Ford and Jaguar as well as Suzuki, Jeep, Honda.
What is the P0533 Fault Code?
Here are some reasons why P0533 should be set.
- – To much or too little refrigerant
- – The refrigerant pressure sensors can be either open or closed.
- – A defective or leaking refrigerant sensor (there might be 1 to 4 sensors within the system).
- Air conditioner fans that are defective
- – Broken, damaged or broken cables
- – Loose, corroded connectors
- – Moisture in the system can freeze and block the expansion valve. An air conditioner system can operate for a short time, but then suddenly raise the pressure on its high side. This could cause an overpressure condition.
What are the symptoms for P0533 fault code?
When this code is displayed, the most serious problem is that your air conditioning system will not function properly. You will also notice that the check engine lamp will be constantly on. The check engine light is not something you should be concerned about. However, extreme heat can make it difficult to move around in the heat without air conditioner.
You may experience the following symptoms if your vehicle has the code P0533:
- Illumination of the check engine light
- – Your air conditioner system might not cool down properly or may be operating in an abnormal manner
- Air conditioners may not be working properly
The check engine light might not turn on depending on your vehicle. P0533 is an emissions-related fault code. However, the air conditioner will stop working until the problem has been resolved. Depending on your vehicle, you might see a warning message or flashing A/C light at the HVAC control panel. Some vehicles will reset the system after the engine has been turned off. In these cases, the fault code can be cleared. The system typically tests itself after the vehicle is restarted, and the air conditioning is switched on by the driver. If there is an overpressure voltage condition, the PCM will lock the A/C compressor and display a fault code.
How do I fix the P0533 fault code?
When dealing with P0533 or other codes relating to air conditioners, one of the biggest mistakes is thinking that the problem is due to a lack refrigerant. It is not a good idea for refrigerant to be added without first thoroughly testing the system and determining the root cause. A high level of refrigerant can lead to system collapse.
Here are some of the possible repairs that could resolve the P0533 fault code:
- – Checking the refrigerant and, if necessary topping it up
- – Air conditioning fan repair or replacement.
- – Replacing the refrigerant pressure sensors
- Repairing damaged, broken or short-circuited cables
- – Repairing and replacing damaged, corroded or burnt connectors
- Detection of and repair of gas leaks in air conditioners
How serious is the P0533 Fault code?
Although an air conditioning problem is not usually considered an emergency, it is worth having the problem looked at by a professional. This will prevent any further damage to your cooling system and get your conditioner running again. If your air conditioner doesn’t work, you might find it difficult to drive in hot temperatures. It is not a good idea to spend too much time in an unconditioned environment.
