Quick Answer
U0151 means: U0151 signifies a communication failure between the Body Control Module and other modules in the vehicle.
Can I drive with U0151? Immediate attention is advised to prevent further electrical issues.
Common Questions
What does U0151 mean and how does it affect my car?
The U0151 code indicates a lost communication between your car's Body Control Module and other modules, which can affect the operation of power windows, locks, and lights. This can result in unexpected electrical issues and potentially leave you stranded.
What are the most common causes of U0151 and how much does it cost to fix?
The primary cause is often a malfunctioning BCM, which can cost between $300 and $600 to replace. Other causes include damaged wiring and corroded connectors, with repair costs ranging from $100 to $300.
Can I drive my car with U0151 or should I stop immediately?
While you may be able to drive the vehicle with the U0151 code, it's not advisable as it may lead to further electrical system failures. Addressing the issue promptly is crucial for safety and reliability.
How can I diagnose U0151 myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for trouble codes, view freeze frame data, and monitor live data streams to help identify any irregularities in the communication between modules, guiding your troubleshooting process.
What vehicles are most commonly affected by U0151?
Commonly affected vehicles include the 2010-2015 Ford Fusion, 2011-2013 Chevrolet Malibu, and 2014-2016 Chrysler 200. Be aware of any recalls or technical service bulletins (TSBs) related to BCM issues.
How can I prevent U0151 from happening again?
Regular maintenance, such as inspecting electrical connections and ensuring moisture doesn't enter critical modules, can help prevent U0151 from occurring. Keeping software updated is also essential.
What is U0151?
DTC U0151 indicates a communication issue between the Body Control Module (BCM) and other control modules in your vehicle. The BCM is responsible for managing various electrical components such as power windows, door locks, and interior lights. When the U0151 code appears, it typically signifies that the BCM is not receiving or sending information correctly, which can lead to malfunctioning electrical systems. This code is commonly found in a variety of vehicles, including the 2010-2015 Ford Fusion, 2011-2013 Chevrolet Malibu, and 2014-2016 Chrysler 200. The implications of this code are significant; drivers may experience issues like the malfunction of power windows, loss of interior lights, or even failure of the car's security system. If left unaddressed, it can lead to further electrical system failures, increasing repair costs down the line. Therefore, understanding this trouble code is essential for any car owner experiencing electrical issues, and timely diagnosis is crucial to ensure your vehicle's systems operate smoothly.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0151 is present:
- Check engine light stays on constantly, indicating a persistent communication issue that needs attention.
- Malfunctioning power windows and door locks, leading to inconvenience and potential security risks.
- Interior lights flicker or fail to turn on, affecting visibility inside the car, especially at night.
- Dashboard warning lights illuminate unexpectedly, causing confusion and concern for the driver.
- Vehicle security system may malfunction, potentially preventing the car from starting or locking securely.
Possible Causes
Most common causes of U0151 (ordered by frequency):
- The most common cause is a faulty Body Control Module (BCM), which can account for about 60% of U0151 occurrences. This can happen due to age, exposure to moisture, or electrical surges.
- A second possible cause is damaged wiring or connectors in the communication circuit, which can disrupt signals between modules. Inspecting these connections can reveal shorts or breaks.
- Corroded connectors are also a significant factor; corrosion can prevent proper electrical contact. Regular maintenance and inspection of connectors can help prevent this issue.
- Less commonly, software glitches in the BCM or other control modules can result in U0151. Keeping software updated can mitigate these risks.
- In rare cases, external factors such as aftermarket electronics installed in the vehicle can interfere with the BCM's communication, leading to the error code.
U0151 Repair Costs
Cost Breakdown by Repair Type
BCM Replacement
Replacing the faulty Body Control Module with a new OEM part.
- Total: $300 - $600
- Success rate: 85%
Wiring Repair
Repairing or replacing damaged wiring and connectors.
- Total: $100 - $300
- Success rate: 75%
Software Update
Updating the software of the BCM to the latest version.
- Total: $50 - $150
- Success rate: 70%
Money-Saving Tips for U0151
- 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 U0151 Diagnosis Process
Follow these systematic steps to accurately diagnose U0151. 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). Pay special attention to the BCM connectors.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes). This will help in diagnosing the issue more accurately.
Step 3: Step 3: Component testing - Use a multimeter to test the voltage at the BCM and other related connectors (20-30 minutes)
Step 3: Component testing - Use a multimeter to test the voltage at the BCM and other related connectors (20-30 minutes). This can help pinpoint communication failures.
Step 4: Step 4: System function test - After repairs, verify proper operation of all electronic components controlled by the BCM and clear codes (10-15 minutes)
Step 4: System function test - After repairs, verify proper operation of all electronic components controlled by the BCM and clear codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the repairs have resolved the communication issue (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm that the repairs have resolved the communication issue (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: BCM Replacement in 2011 Chevrolet Malibu
Vehicle: 2011 Chevrolet Malibu, 80,000 miles
Problem: Customer reported that power windows and interior lights were non-functional.
Diagnosis: Upon scanning with GeekOBD APP, U0151 was present. Visual inspection revealed a faulty BCM.
Solution: Replaced the Body Control Module with an OEM part.
Cost: $450 (including parts and labor)
Result: All electrical functions restored; customer reported satisfaction with repairs.
Case Study 2: Wiring Repair for 2010 Ford Fusion
Vehicle: 2010 Ford Fusion, 90,000 miles
Problem: Dashboard lights flickering and intermittent power lock failures.
Diagnosis: Diagnostic scan revealed U0151; inspection uncovered damaged wiring in the BCM harness.
Solution: Repaired the damaged wiring and secured all connectors.
Cost: $200 (parts and labor)
Result: Resolved all symptoms; vehicle functioning normally.