Guide To P06A2 OBD Error Code Solutions

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There is a purpose of the variable air conditioner compressor control circuit in every vehicle and that is to engage and disengage the compressor at the optimum time in-order to maintain the desired temperature in the cabin. Electronic Control Unit is the one that receives voltage signals from a number of components, it then detects possible faults within the system.

The variable air conditioner compressor control circuit contains various components, so that it can accomplish this process correctly. At the time the Engine Control Unit (ECU) detects any abnormality in the electrical signals within the A/C compressor control circuit, it proceeds to setting error code P06A2. The check engine light will also turn on as a result. A lot of the newer automobile models have a climate control component, which also helps in the circuit to perform smoothly.

The Powertrain control module aka PCM in the vehicle controls the air conditioner compressor, and when it is unable to do so, the P06A2 error code will be set by it.

What causes this problem with the Variable A/C Compressor Control Circuit High?

• Defectiveness found in the air conditioner compressor
• Defectiveness present in the air conditioner solenoid
• A considerably low or overcharged system
• Orifice tube or dryer found to be clogged
• Malfunction in the climate control system
• Defect in the air conditioner relay, blown fuse or fusible link
• Corrosion of the connector or even damage
• Fault in the wiring, or even damage of wiring
• Defect in the Electronic Control Unit or ECU

1. A/C Compressor - A very important component, replace it with the best fro Parts Avatar, find one that’s perfect for your vehicle and order easily.
2. A/C Solenoid - Depending on the extent of damage repair or replace the solenoid.
3. Orifice Tube/Dryer - Any damages to the tube/dryer have to be fixed, or simply replace it.
4. A/C Relay - Repair it as soon as possible, if that doesn’t help, you will have to go for replacement.
5. Engine Control Unit - Replace it with Parts Avatar, we ship across Canada with free shipping over order valuing CAD $99.
6. A/C Diagnostic Machine - The professional mechanic will know about the true condition of it, repair or replace as per advice.
7. Multimeter - Try it fix it, if that’s not helping then replace.

Willing to know some common symptoms of OBD Code P06A2? Your wish is our demand. Have a look at them below:

Common Symptoms

• The Air conditioner no longer operates as usual
• The Check engine light is on

We have listed out some ways which would help you to correct the occurrence of OBD Code P06A2. They are mentioned here as follows:

• Complete replacement A/C compressor
• Full replacement the A/C solenoid
• Orifice tube or dryer replacement
• Replacing the blown fuse or fusible link
• Repairing any leaks in the A/C system
• Cleaning of corrosion found in connectors
• Depending on analysis repairing or replacing poor wiring
• Evacuation and complete recharging of the system
• Try flashing or replacing ECU

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If you want to easily diagnose this fault code, then all you have to do is to follow the steps which are mentioned below:

• Make note of your vehicle's year of manufacturing, model and power plant, and then get hold of the Technical Service Bulletins TSB to know the troubleshooting process prescribed by your automobile manufacturer. This will help you streamline your issue and find the right diagnostic steps.
• Now, locate all the components within this circuit including the A/C compressor, associated sensors, relays and the ECU. You can simply do this visually, and look out for any defects in wiring like rubbing, scraping, bare wires or even burn spots. You also have to check the connectors to see if they are secure, and if any corrosion has occurred, you may even find some damaged pins. All of these components will have to be repaired.
• At this point as you move into the advanced diagnosis, you will have to have certain equipment. If you don’t know how to use them, it’s best to get help from a professional mechanic. You will mainly require a digital multimeter, and an A/C diagnostic machine. Also, you will continue to require the technical reference of your vehicle.
• The reason why you need this specialised equipment is because they will be able to precisely identify malfunctions like; leaks and verifying appropriate pressures within the system, restrictions within the system such as a clogged orifice tube or dryer, integrity of the A/C compressor and associated components. The right quantity of refrigerant plays a significant role in how this circuit operates. Certain components are incorporated to prevent damage to the air conditioner compressor, these include; safety switches, fuses and fusible links.
• For voltage ranges, refer the specific guideline available in your TSB. As per configuration of the vehicle, some components are incorporated in certain applications like; A/C compressor, relays and solenoids. The climate control, found in newer automobiles tends to complicate the troubleshooting, so it’s important to have someone trained and experienced be handling the vehicle. Voltage requirements also vary, hence referring the exact automobile models’ troubleshooting guidelines is crucial.
• In this process, if you have identified an absence of a power source/ground, then you will have to check the wire, connector and other components’ integrity. Do this by first disconnecting the power to the circuit, ensure that 0 Ohms resistance is the normal reading on both the wire and connections. If you notice resistance or no continuity then it’s definitely a faulty wiring, which could be shorted or open. This has to be repaired or replaced depending on the extent of damage.

Common Mistakes When Diagnosing the P06A2 Code

• Failure of the A/C compressor
• Failed A/C compressor relay
• Malfunction of the Powertrain Control Module (PCM)
• Wiring problems