Hey guys! Let's dive into the world of the 2020 Ford Explorer ST and its All-Wheel Drive (AWD) module. This is a pretty important piece of kit, and when it starts acting up, it can cause a whole heap of trouble. We're going to break down some of the common problems, what might be causing them, and how you can get things back on track. Whether you're a seasoned mechanic or just a car enthusiast, this guide is for you!

Understanding the AWD Module in Your 2020 Ford Explorer ST

The All-Wheel Drive (AWD) module in your 2020 Ford Explorer ST is essentially the brain of the AWD system. Its primary job is to monitor various sensors throughout the vehicle and determine how much torque should be sent to the front and rear wheels. This ensures optimal traction and stability in different driving conditions. Think of it as the conductor of an orchestra, making sure all the different parts of the AWD system are working in harmony. Without a properly functioning AWD module, your Explorer ST might not perform as expected, especially in slippery or challenging conditions.

How It Works: The AWD module receives data from sensors that monitor wheel speed, throttle position, steering angle, and more. Based on this data, it calculates the appropriate amount of torque to send to each axle. This is crucial for maintaining grip and control. For instance, if the system detects that the rear wheels are losing traction, it can automatically send more power to the front wheels to compensate. This happens in milliseconds, making the AWD system incredibly responsive and effective.

Importance of a Functional AWD Module: A properly functioning AWD module is vital for several reasons. First and foremost, it enhances safety by providing better traction and stability, especially in adverse weather conditions like rain, snow, or ice. Second, it improves handling and performance, allowing you to confidently tackle various terrains. Third, it ensures that your Explorer ST operates as intended, delivering the performance and capabilities that Ford designed it for. When the AWD module fails, you might experience reduced traction, poor handling, and even potential safety hazards.

Common Symptoms of a Failing AWD Module: Recognizing the symptoms of a failing AWD module early can save you from bigger headaches down the road. Some common signs include:

• Warning Lights: The most obvious sign is an illuminated AWD warning light on your dashboard. This light indicates that the system has detected a fault and needs attention.
• Reduced Traction: You might notice that your Explorer ST struggles to maintain traction, especially in slippery conditions. This can manifest as wheel spin, reduced stability, and a general feeling of being less in control.
• Erratic Handling: A failing AWD module can cause erratic handling, making the vehicle feel unstable or unpredictable. You might experience unexpected changes in steering effort or a tendency to pull to one side.
• Noises: Unusual noises, such as grinding, whining, or clicking sounds from the drivetrain, can indicate an issue with the AWD system.
• Difficulty in Off-Road Conditions: If you frequently drive off-road, you might notice that your Explorer ST is not performing as well as it used to. It might struggle to climb hills or navigate uneven terrain.

If you experience any of these symptoms, it's crucial to have your vehicle inspected by a qualified mechanic as soon as possible.

Diagnosing AWD Module Issues in the 2020 Ford Explorer ST

Alright, so you're suspecting that your 2020 Ford Explorer ST's AWD module might be on the fritz. What's next? Diagnosing these issues can be a bit tricky, but with the right tools and knowledge, you can pinpoint the problem and get it sorted. Let's walk through the process.

Tools You'll Need:

• OBD-II Scanner: This is your best friend when it comes to diagnosing modern car problems. An OBD-II scanner can read diagnostic trouble codes (DTCs) stored in the vehicle's computer, giving you a clue as to what's going wrong.
• Multimeter: A multimeter is useful for testing electrical circuits and components. You can use it to check for voltage, continuity, and resistance.
• Wiring Diagrams: Having the correct wiring diagrams for your Explorer ST is essential for tracing circuits and identifying potential shorts or open circuits.
• Basic Hand Tools: You'll need a set of basic hand tools, such as wrenches, sockets, screwdrivers, and pliers, to access and inspect the AWD module and related components.

Step-by-Step Diagnostic Process:

1. Read Diagnostic Trouble Codes (DTCs): Start by plugging your OBD-II scanner into the diagnostic port (usually located under the dashboard). Turn the ignition on (but don't start the engine) and scan for DTCs. Record any codes related to the AWD system.
2. Research the Codes: Once you have the DTCs, research what they mean. A quick Google search or a visit to a reputable automotive forum can provide valuable information about the potential causes of each code.
3. Inspect the Wiring and Connections: Visually inspect the wiring and connections associated with the AWD module. Look for any signs of damage, corrosion, or loose connections. Pay close attention to the connectors that plug into the module itself.
4. Test the Sensors: Use a multimeter to test the sensors that provide input to the AWD module. This includes wheel speed sensors, throttle position sensors, and steering angle sensors. Refer to the wiring diagrams to identify the correct pins and test procedures.
5. Check the Power and Ground: Verify that the AWD module is receiving adequate power and ground. Use a multimeter to check the voltage at the power supply pins and the continuity to ground.
6. Inspect the AWD Module: If you've checked everything else and still suspect the module is the problem, carefully inspect it for any signs of physical damage, such as burnt components or water intrusion.

Interpreting Diagnostic Trouble Codes (DTCs): DTCs are your first clue in diagnosing AWD module issues. Here are some common codes you might encounter and what they could indicate:

• C0035-C0050 (Wheel Speed Sensor Codes): These codes indicate a problem with one or more of the wheel speed sensors. This could be due to a faulty sensor, damaged wiring, or a problem with the ABS module.
• C1A35 (Control Module Power Circuit): This code suggests a problem with the power supply to the AWD module. Check the fuses, wiring, and connections to the module.
• U0102 (Lost Communication with Transfer Case Control Module): This code indicates a communication problem between the AWD module and the transfer case control module. This could be due to a wiring issue, a faulty module, or a problem with the CAN bus network.
• C1405 (Incorrect Four Wheel Drive Ratio): This code indicates that the ratio of wheel speed is incorrect. This may indicate that the tires are not the same size or have a faulty wheel speed sensor.

When to Seek Professional Help: If you're not comfortable performing these diagnostic steps yourself, or if you're unable to pinpoint the problem, it's best to seek professional help. A qualified mechanic has the tools, knowledge, and experience to accurately diagnose and repair AWD module issues.

Potential Causes of AWD Module Failure

Okay, so you've confirmed that your AWD module is acting up. Now, let's get into what could be causing this headache. There are several potential culprits behind AWD module failures, ranging from environmental factors to electrical issues. Understanding these causes can help you prevent future problems.

Common Culprits:

• Electrical Issues: Electrical problems are a frequent cause of AWD module failure. This can include voltage spikes, shorts, open circuits, and corroded wiring. These issues can damage the sensitive electronic components within the module.
• Water Intrusion: Water is the enemy of electronics. If water gets inside the AWD module, it can cause corrosion, short circuits, and other damage. This is especially common in vehicles that are frequently driven in wet or snowy conditions.
• Physical Damage: Physical damage, such as impacts from rocks or debris, can also damage the AWD module. This is more likely to occur in vehicles that are used for off-roading.
• Overheating: Excessive heat can damage the electronic components within the AWD module. This can occur if the module is located near a heat source, such as the exhaust system, or if the vehicle is driven in extreme temperatures.
• Software Glitches: In some cases, AWD module failures can be caused by software glitches or corrupted firmware. This can occur if the module is not properly updated or if it experiences a power surge during a software update.

Environmental Factors: The environment in which you drive your Explorer ST can significantly impact the lifespan of the AWD module. Here are some factors to consider:

• Road Salt: Road salt is highly corrosive and can damage wiring, connectors, and other components. If you live in an area where road salt is used, it's essential to regularly wash your vehicle to remove salt buildup.
• Extreme Temperatures: Extreme temperatures, both hot and cold, can stress the electronic components within the AWD module. Avoid prolonged exposure to extreme temperatures whenever possible.
• Off-Road Driving: Off-road driving can expose the AWD module to physical damage, water intrusion, and other hazards. If you frequently drive off-road, consider installing skid plates or other protective measures.

Preventative Measures: Preventing AWD module failure is always better (and cheaper) than dealing with a breakdown. Here are some steps you can take to protect your AWD module:

• Regular Maintenance: Follow the manufacturer's recommended maintenance schedule for your Explorer ST. This includes checking and servicing the AWD system as needed.
• Protect Wiring and Connectors: Inspect the wiring and connectors associated with the AWD module regularly. Repair any damage or corrosion promptly.
• Avoid Water Intrusion: Avoid driving through deep water or in areas where the AWD module is likely to be exposed to water. If you do drive through water, inspect the module afterward to ensure that it hasn's been affected.
• Keep the Module Cool: Ensure that the AWD module is properly ventilated and not exposed to excessive heat. If necessary, install heat shields or other measures to protect it from heat sources.
• Software Updates: Keep the software and firmware in your AWD module up to date. This can help prevent software glitches and improve the module's performance.

By understanding the potential causes of AWD module failure and taking preventative measures, you can extend the lifespan of your AWD module and keep your 2020 Ford Explorer ST running smoothly.

Repair or Replace: What to Do with a Faulty AWD Module

So, you've pinpointed the issue to your AWD module – now what? Deciding whether to repair or replace the module can be a tough call, and it often boils down to the extent of the damage, your budget, and your DIY skills. Let's break down the pros and cons of each option.

Repairing the AWD Module:

• Pros:
  • Cost-Effective: Repairing a module is generally cheaper than replacing it, especially if the damage is minor.
  • Environmentally Friendly: Repairing reduces waste by keeping the old module out of the landfill.
  • DIY Potential: If you have experience with electronics repair, you might be able to fix the module yourself, saving on labor costs.
• Cons:
  • Complexity: AWD modules are complex electronic devices, and repairing them can be challenging, requiring specialized skills and equipment.
  • Reliability: Even if you successfully repair the module, there's no guarantee that it will be as reliable as a new one.
  • Limited Availability of Parts: Finding replacement parts for AWD modules can be difficult, especially for older models.

Replacing the AWD Module:

• Pros:
  • Reliability: A new AWD module should be more reliable than a repaired one, providing peace of mind.
  • Warranty: New modules typically come with a warranty, protecting you against defects or failures.
  • Easier Installation: Replacing a module is generally easier than repairing it, as you simply need to remove the old one and install the new one.
• Cons:
  • Cost: Replacing a module is typically more expensive than repairing it, especially when you factor in the cost of labor.
  • Environmental Impact: Replacing a module generates more waste than repairing it.

Factors to Consider When Making Your Decision:

• Extent of Damage: If the module is severely damaged, such as from water intrusion or physical impact, replacement is usually the best option.
• Your Budget: Consider how much you're willing to spend on the repair. If your budget is tight, repairing the module might be a more viable option.
• Your DIY Skills: If you're comfortable working with electronics, you might be able to repair the module yourself. However, if you're not experienced, it's best to leave it to a professional.
• Availability of Parts: Check the availability of replacement parts for your specific module. If parts are scarce, repairing might not be feasible.
• Warranty: Consider whether a new module comes with a warranty. A warranty can provide peace of mind and protect you against future failures.

Tips for Finding a Reputable Repair Shop:

• Ask for Recommendations: Ask friends, family, or other car owners for recommendations on reputable repair shops.
• Check Online Reviews: Read online reviews to get an idea of the shop's reputation and customer service.
• Look for Certifications: Choose a shop that is certified by a reputable organization, such as ASE (Automotive Service Excellence).
• Get Multiple Estimates: Get estimates from several different shops to compare prices and services.
• Ask About Warranty: Ask about the shop's warranty policy on repairs.

By carefully considering these factors and weighing the pros and cons of each option, you can make an informed decision about whether to repair or replace your faulty AWD module.

Keeping Your 2020 Ford Explorer ST AWD Module Healthy

Alright, so you've either repaired or replaced your AWD module – great job! Now, let's talk about how to keep it running smoothly for the long haul. Proper maintenance and care can significantly extend the life of your AWD module and prevent future problems.

Regular Maintenance Tips:

• Follow the Maintenance Schedule: Stick to the manufacturer's recommended maintenance schedule for your 2020 Ford Explorer ST. This schedule outlines when to perform various maintenance tasks, including checking and servicing the AWD system.
• Check Fluid Levels: Regularly check the fluid levels in your AWD system, including the transfer case and differential. Low fluid levels can cause excessive wear and tear on the system's components.
• Inspect Wiring and Connections: Periodically inspect the wiring and connections associated with the AWD module. Look for any signs of damage, corrosion, or loose connections. Repair any issues promptly.
• Keep It Clean: Keep the AWD module and its surrounding area clean. Remove any dirt, debris, or road salt that could damage the module or its components.
• Monitor Performance: Pay attention to how your AWD system is performing. If you notice any unusual noises, vibrations, or handling issues, have the system inspected by a qualified mechanic.

Driving Habits That Can Impact AWD Module Health:

• Avoid Aggressive Driving: Avoid aggressive driving habits, such as rapid acceleration, hard braking, and sharp turns. These maneuvers can put excessive stress on the AWD system.
• Use the Correct Tires: Use the correct tires for your vehicle and driving conditions. Using mismatched or worn tires can cause uneven wear on the AWD system and reduce its effectiveness.
• Avoid Overloading: Avoid overloading your vehicle. Overloading can put excessive strain on the AWD system and other components.
• Be Mindful of Terrain: Be mindful of the terrain you're driving on. Avoid driving through deep water, mud, or snow unless your vehicle is properly equipped.

Long-Term Care Strategies:

• Protect from the Elements: Protect your vehicle from the elements whenever possible. Park it in a garage or carport to shield it from sun, rain, and snow.
• Wash Regularly: Wash your vehicle regularly, especially during the winter months when road salt is used. This will help prevent corrosion and damage to the AWD system.
• Consider a Protective Coating: Consider applying a protective coating to the AWD module and its components. This can help protect them from corrosion and other damage.
• Stay Informed: Stay informed about the latest news and information regarding your 2020 Ford Explorer ST's AWD system. This will help you identify potential problems early and take preventative measures.

By following these maintenance tips and long-term care strategies, you can keep your 2020 Ford Explorer ST's AWD module healthy and ensure that it continues to provide reliable performance for years to come.

Final Thoughts

So there you have it, guys! Everything you need to know about the 2020 Ford Explorer ST AWD module, from understanding its function to diagnosing issues and keeping it in tip-top shape. Remember, a well-maintained AWD system not only enhances your vehicle's performance but also ensures your safety on the road. Take care of your Explorer ST, and it'll take care of you! Safe driving!