Quick Answer
U014C means: U014C indicates a communication failure between the vehicle's ECU and the BCM.
Can I drive with U014C? Address this code as soon as possible to avoid further vehicle malfunctions.
Common Questions
What does U014C mean and how does it affect my car?
The U014C code indicates that your vehicle's computer cannot communicate with the body control module. This can lead to malfunctions in various electronic systems, such as lights and locks, which can affect your overall driving experience and safety.
What are the most common causes of U014C and how much does it cost to fix?
Common causes include damaged wiring, a faulty BCM, or corrosion at connectors. Repair costs can range from $100 for simple wiring fixes to $600 for BCM replacement, depending on the specific issue.
Can I drive my car with U014C or should I stop immediately?
While you may still be able to drive your vehicle, it is advisable to address the U014C code as soon as possible. Ignoring it could lead to more significant electrical issues and potential safety risks.
How can I diagnose U014C myself using GeekOBD APP?
You can diagnose U014C by using the GeekOBD APP to scan your vehicle for codes. Take note of any other related codes and perform a visual inspection of the wiring and connectors related to the BCM.
What vehicles are most commonly affected by U014C?
Commonly affected vehicles include the 2015-2018 Ford F-150, 2014-2017 Chrysler 300, and various models from GM. Always check for any recalls or technical service bulletins related to electrical issues.
How can I prevent U014C from happening again?
Regular maintenance, including inspecting wiring and connections for wear and corrosion, can help prevent U014C. Using protective coatings on connectors and keeping the BCM area clean can also be beneficial.
What is U014C?
The U014C diagnostic trouble code (DTC) signifies that there is a lost communication issue between the vehicle's On-Board Diagnostics II (OBD-II) system and the body control module (BCM). The BCM is responsible for managing various functions in your vehicle, such as lighting, power windows, door locks, and security systems. When this code is triggered, it typically means that the engine control unit (ECU) cannot communicate with the BCM due to wiring issues, module failure, or other electronic faults. This communication breakdown can lead to various problems, including the malfunctioning of electronic accessories and systems, which may affect overall vehicle safety and operation. For example, in models like the 2016 Ford Explorer or 2014 Chrysler 300, you may find that the lights behave erratically, or features like keyless entry may stop working altogether. Ignoring this code could lead to further electrical issues, making it essential for car owners to address it promptly to ensure all vehicle systems operate correctly and safely.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U014C is present:
- The check engine light illuminates and remains on, indicating a need for immediate diagnostics.
- Power accessories, such as windows and locks, may function erratically or not at all, creating inconvenience for drivers.
- Unexpected issues with the vehicle's lighting system, where headlights or interior lights flicker or fail, can lead to safety concerns.
- Engine stalling or hesitation during acceleration may occur due to disrupted communication between modules.
- Decreased fuel economy by 10-15% can be noticed as the vehicle's systems struggle to operate efficiently.
Possible Causes
Most common causes of U014C (ordered by frequency):
- The most common cause of U014C is damaged wiring or loose connections, which can account for up to 60% of cases; inspect the wiring harness and connectors for wear and tear.
- A failing body control module (BCM) is another prevalent issue, where the module itself may be malfunctioning and requires replacement; this could be due to age or exposure to moisture.
- Corrosion at connectors or grounding points can lead to intermittent communication failures; regular maintenance and inspections can prevent this.
- Less common, but serious causes include short circuits in the electrical system, which can lead to more extensive damage if not addressed quickly.
- Rarely, factory defects or software issues in the BCM can trigger this code; staying updated with manufacturer recalls can help.
U014C Repair Costs
Cost Breakdown by Repair Type
Wiring Repair
Repair or replace damaged wiring and connectors to restore communication.
- Total: $100 - $300
- Success rate: 80%
BCM Replacement
Replacing the body control module if it is found to be defective.
- Total: $300 - $600
- Success rate: 90%
Money-Saving Tips for U014C
- 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 U014C Diagnosis Process
Follow these systematic steps to accurately diagnose U014C. 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, which should take around 5-10 minutes
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion, which should take around 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Use the GeekOBD APP to retrieve all codes and freeze frame data, which helps in understanding the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Use the GeekOBD APP to retrieve all codes and freeze frame data, which helps in understanding the fault context (10-15 minutes).
Step 3: Step 3: Component testing - Utilize a multimeter or specific diagnostic tools to test the BCM and related components for functionality (20-30 minutes)
Step 3: Component testing - Utilize a multimeter or specific diagnostic tools to test the BCM and related components for functionality (20-30 minutes).
Step 4: Step 4: System function test - After making repairs, verify the operation of all systems and clear codes using the GeekOBD APP (10-15 minutes)
Step 4: System function test - After making repairs, verify the operation of all systems and clear codes using the GeekOBD APP (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair was successful (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm the repair was successful (15-20 minutes).
Important Notes
- Always verify the repair with GeekOBD APP after completing diagnostic steps
- Clear codes and test drive to ensure the problem is resolved
- Address underlying causes to prevent code recurrence
Real Repair Case Studies
Case Study 1: 2016 Ford Explorer U014C Repair
Vehicle: 2016 Ford Explorer, 75,000 miles
Problem: Customer reported that the interior lights were flickering and keyless entry stopped working.
Diagnosis: A scan revealed U014C along with additional codes. A visual inspection showed corroded connectors.
Solution: Cleaned connectors and repaired wiring. Replaced BCM as a precaution.
Cost: $450 (includes $150 for parts and $300 for labor)
Result: All systems functioning well post-repair; customer reported no further issues.
Case Study 2: 2014 Chrysler 300 BCM Replacement
Vehicle: 2014 Chrysler 300, 85,000 miles
Problem: Check engine light on, with power windows and locks not responding.
Diagnosis: Diagnostic scan confirmed U014C. BCM was unresponsive upon testing.
Solution: Replaced the faulty BCM with a new module.
Cost: $550 (includes $350 for parts and $200 for labor)
Result: Vehicle restored to full functionality; customer satisfied with the repair.