U0337 - Understanding DTC U0337: Common Issues in 2015-2019 Ford F-150 and Other Models

Quick Answer

U0337 means: U0337 indicates a communication problem between the Body Control Module and other vehicle systems.

Fix: Check and replace faulty components Cost: $100 - $400 Time: 90-180 minutes

Can I drive with U0337? It's advisable to diagnose the issue promptly to prevent further electrical problems.

Common Questions

What does U0337 mean and how does it affect my car?

The U0337 code signifies a communication breakdown between the Body Control Module and other vehicle systems. This can lead to erratic functioning of electrical components, causing inconvenience and potentially impacting your vehicle's safety features.

What are the most common causes of U0337 and how much does it cost to fix?

Common causes include damaged wiring (40% likelihood) and software glitches. Repair costs can range from $100 to $800 depending on whether wiring repairs or a BCM replacement is needed.

Can I drive my car with U0337 or should I stop immediately?

While you may be able to drive the vehicle, it's not recommended due to potential risks with electrical systems. Addressing the issue promptly can prevent further complications.

How can I diagnose U0337 myself using GeekOBD APP?

Using the GeekOBD APP, you can scan for codes, view freeze frame data, and monitor live sensor readings to understand the context of the U0337 code.

What vehicles are most commonly affected by U0337?

Commonly affected vehicles include the 2015-2019 Ford F-150 and other models from Ford that utilize similar BCM setups.

How can I prevent U0337 from happening again?

Regularly inspect electrical connections, keep software up to date, and maintain your vehicle's electrical system to prevent future occurrences.

What is U0337?

The U0337 diagnostic trouble code indicates a communication issue between the vehicle's control modules—specifically, the Body Control Module (BCM) and other modules. This code is often triggered when the BCM detects a malfunction within its communication network, leading to symptoms such as warning lights on the dashboard or failure of electrical components. In practical terms, this means that your vehicle may experience erratic behavior in features like lights, power windows, or even the engine itself. The issue can stem from damaged wiring, corroded connectors, or even software glitches. If you own a 2015-2019 Ford F-150, it’s crucial to address this code promptly, as ignoring it could lead to more significant electrical failures over time. The U0337 code's implications can extend beyond mere inconveniences, potentially impacting the vehicle's safety systems. Therefore, understanding this code can help you take proactive measures to ensure the reliability of your vehicle.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0337 is present:

Check engine light illuminates or flashes, indicating a need for immediate attention.
Power windows may operate erratically or fail to respond altogether, affecting driver convenience.
Dashboard warning lights for various systems stay lit, signaling potential failures in essential components.
Vehicle's electrical accessories, like the radio or interior lights, may malfunction intermittently.
Unusual behavior in safety features, such as anti-lock brakes or traction control systems, indicating broader issues.

Possible Causes

Most common causes of U0337 (ordered by frequency):

{'cause': 'Damaged wiring or connectors', 'likelihood': '40%', 'details': 'Worn or frayed wiring can disrupt communication, especially in vehicles with high mileage.'}
{'cause': 'Software glitch or outdated firmware', 'details': 'Sometimes, a simple software update can resolve communication errors between modules.'}
{'cause': 'Corrosion in connectors', 'preventionTips': 'Regularly inspect and clean electrical connectors to avoid corrosion-related issues.'}
{'cause': 'Faulty Body Control Module', 'details': 'In rare cases, the BCM itself may fail, requiring replacement for resolution.'}
{'cause': 'Intermittent electrical issues', 'details': 'Loose connections can cause sporadic failures, making diagnosis challenging.'}

U0337 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair or Replacement

Repairing or replacing damaged wiring and connectors to restore communication.

Total: $100 - $400
Success rate: 85%

Body Control Module Replacement

Replacing the BCM can resolve persistent communication issues.

Total: $300 - $800
Success rate: 90%

Money-Saving Tips for U0337

Start with the most common and least expensive repairs first
Use GeekOBD APP to confirm diagnosis before replacing expensive parts
Consider preventive maintenance to avoid future occurrences
Compare prices for OEM vs aftermarket parts based on your needs
Address the issue promptly to prevent more expensive secondary damage

Diagnostic Steps

Professional U0337 Diagnosis Process

Follow these systematic steps to accurately diagnose U0337. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes)

Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion (5-10 minutes).