2012 Dodge Charger AC Isn't Working

Common Causes of AC Failure in Your 2012 Dodge Charger and How to Fix Them

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Reviewed by
Bo Fader
Written by RepairPal Car Genius
Updated January 14, 2025
0%
37% chance it's the
Refrigerant Leak
0%
21% chance it's the
Climate Control Electrical Issue
0%
12% chance it's the
AC Compressor
0%
30% chance it's
Something else
The most common reasons a 2012 Dodge Charger AC isn't working are a refrigerant leak, an electrical climate control issue, or a problem with the air conditioning compressor.
  • Refrigerant Leak: A refrigerant leak can occur due to damaged hoses, seals, or connections, resulting in decreased cooling efficiency in the air conditioning system.
  • Climate Control Electrical Issue: A faulty climate control module or a blown fuse could be causing the electrical issues in the climate control system.
  • AC Compressor: A faulty AC compressor may be due to a lack of lubrication, electrical issues, or internal mechanical failure, resulting in inadequate cooling performance.
Proper diagnosis will determine the exact cause of your symptom, saving you money on unnecessary repairs. The diagnostic experts at RepairPal Certified shops have the right tools and experience to solve any symptom.

What are the initial steps to diagnose the AC issue in a 2012 Dodge Charger?

When diagnosing an AC issue in a 2012 Dodge Charger, it's essential to adopt a systematic approach that begins with the simplest checks before moving on to more complex diagnostics. Start by examining the refrigerant levels, as low refrigerant or leaks are common culprits for AC failures. Use a gauge to assess the pressure at the low-pressure port; if it's low, you may have a leak or insufficient refrigerant. Next, inspect the AC clutch and compressor to ensure the clutch engages properly, as a malfunction here will prevent the compressor from activating. The radiator fan is another critical component; it should spin when the AC is on, as its failure can lead to overheating and the AC being deactivated. Don’t forget to check the fuses and relays associated with the AC system, as a blown fuse can halt operation. Additionally, the AC pressure switch should be tested for functionality, as a failure here can also stop the system from working. Investigate the blend door actuator, which controls the temperature of the air; if it’s stuck, it may cause warm air to blow even when the AC is functioning. Lastly, inspect the condenser and hoses for any signs of leaks or damage, and ensure the blower fan is operational, directing air through the correct vents. By following this diagnostic approach, you can effectively identify the root cause of the AC issue in your Charger, potentially saving time and money on repairs.

What are the common problems that could cause the AC to stop working in a 2012 Dodge Charger?

When troubleshooting the air conditioning system in a 2012 Dodge Charger, it's essential to understand the common problems that could lead to a malfunction. One prevalent issue is low refrigerant levels, often caused by leaks in hoses or gaskets, which can prevent the system from cooling effectively. Additionally, a failing AC clutch can hinder the compressor's ability to engage, resulting in no cold air. A worn-out compressor itself may also be the culprit, as it may not generate sufficient pressure to circulate refrigerant. Furthermore, the radiator fan plays a vital role in cooling the condenser; if it malfunctions, the AC system may shut down to avoid overheating. Other potential issues include a faulty AC pressure switch that fails to relay necessary pressure readings to the engine computer, or a malfunctioning blend door actuator that could cause warm air to blow even when the AC is operational. Electrical problems, such as blown fuses or faulty relays, can also disrupt the AC's functionality. Lastly, software glitches in the Body Control Module may lead to erratic compressor behavior. By systematically checking these components, you can effectively diagnose and address the AC issues in your Dodge Charger.

How urgent is it to repair the non-functioning AC in a 2012 Dodge Charger?

Addressing a non-functioning air conditioning system in a 2012 Dodge Charger is crucial for several reasons that extend beyond mere comfort. First and foremost, driving without a functioning AC can lead to significant discomfort, especially during hot and humid weather, making long drives or daily commutes less enjoyable. More importantly, the safety implications cannot be overlooked; a malfunctioning AC can hinder the effectiveness of the defroster, which is essential for maintaining visibility in adverse weather conditions. This can create hazardous driving situations, increasing the risk of accidents. Furthermore, ignoring AC issues can result in more extensive damage to the system, such as a failing compressor or condenser fan, which can lead to costly repairs. Simple problems, like a blown fuse or a faulty relay, can escalate if not addressed promptly. Therefore, it is essential to prioritize the repair of your AC system to ensure a comfortable, safe driving experience while also preventing more significant and expensive issues in the future.

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