Quick Answer
U0359 means: U0359 indicates a communication problem between your vehicle's control modules, usually affecting electronic systems.
Can I drive with U0359? Immediate attention is recommended to prevent further electrical system failures.
Common Questions
What does U0359 mean and how does it affect my car?
U0359 is a diagnostic trouble code indicating a communication problem between your vehicle's control modules. This can lead to issues like malfunctioning lights, erratic gauge readings, and even starting problems. If ignored, it may cause more severe electrical failures.
What are the most common causes of U0359 and how much does it cost to fix?
Common causes include a faulty Body Control Module, damaged wiring, or poor battery connections. Repair costs can range from $100 for wiring repairs to $700 for BCM replacement, depending on the issue.
Can I drive my car with U0359 or should I stop immediately?
While you may be able to drive your vehicle, it's not advisable due to potential electrical failures that could compromise safety. It's best to address U0359 as soon as possible.
How can I diagnose U0359 myself using GeekOBD APP?
Using the GeekOBD APP, you can perform a full OBD2 scan to retrieve trouble codes, view freeze frame data for context, and monitor real-time sensor readings to identify the issue.
What vehicles are most commonly affected by U0359?
U0359 is frequently found in models like the 2015-2020 Ford F-150 and the 2016-2019 Dodge Ram. Owners should check for any recalls or Technical Service Bulletins related to electrical issues.
How can I prevent U0359 from happening again?
Regular vehicle maintenance, including battery terminal cleaning, ensuring proper wiring connections, and software updates, can help prevent U0359 from recurring.
What is U0359?
DTC code U0359 is a generic trouble code that indicates a communication issue with the vehicle's control modules. Specifically, it suggests that the vehicle's Body Control Module (BCM) is not receiving expected signals from another module, often due to a fault in the communication network. In practical terms, this can lead to various electrical problems, including malfunctioning lights, erratic gauge readings, or even failure to start the vehicle. When this code appears, it's crucial to address it promptly, as ignoring it can lead to further electrical failures that may affect vehicle safety and performance. For example, in many affected models like the 2015-2020 Ford F-150, drivers may experience intermittent issues with the dashboard lights or the vehicle's radio. Additionally, this code can trigger the check engine light, leading to confusion and concern for drivers who may not understand its implications. If you're experiencing this code, it's advisable to seek professional diagnostics to prevent further complications.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0359 is present:
- The check engine light stays on constantly, indicating an underlying issue that requires immediate attention.
- Dashboard gauges may behave erratically, such as fluctuating fuel levels or temperature readings, which can confuse the driver.
- The vehicle may experience intermittent electrical failures, such as the radio cutting out or lights flickering, affecting driving safety.
- In some cases, the vehicle may not start at all, leaving drivers stranded and needing immediate diagnostics.
- You might notice increased battery drain due to malfunctioning electronic components that stay active when they shouldn't.
Possible Causes
Most common causes of U0359 (ordered by frequency):
- The most common cause of U0359 is a faulty Body Control Module (BCM), which has a likelihood of about 40%. A BCM failure can disrupt communication between essential vehicle systems.
- Another common cause is damaged wiring or connectors in the communication network, which can occur due to wear and tear. Visual inspection often reveals frayed wires or loose connections.
- Poor battery connections can also lead to U0359, as they may disrupt power flow to the BCM and other modules, leading to intermittent communication failures. Regular maintenance of battery terminals is crucial.
- Less frequently, software issues in the control modules may lead to this code being triggered. Updating the vehicle’s software can resolve such problems.
- A rare cause could be environmental factors, such as moisture intrusion into the control module area, leading to corrosion and communication failures.
U0359 Repair Costs
Cost Breakdown by Repair Type
BCM Replacement
Replacing the faulty Body Control Module with a new one.
- Total: $300 - $700
- Success rate: 85%
Wiring Repair
Repairing any damaged wiring or connectors in the communication network.
- Total: $100 - $300
- Success rate: 75%
Software Update
Updating the vehicle's software to resolve potential bugs causing communication issues.
- Total: $50 - $150
- Success rate: 70%
Money-Saving Tips for U0359
- 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 U0359 Diagnosis Process
Follow these systematic steps to accurately diagnose U0359. 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).
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).
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, including the BCM (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, including the BCM (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes using the GeekOBD APP (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs 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 repair success and ensure no new codes appear (15-20 minutes)
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no new codes appear (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 on 2018 Ford F-150
Vehicle: 2018 Ford F-150, 50,000 miles
Problem: Customer reported intermittent dashboard lights and starting issues.
Diagnosis: After scanning with GeekOBD APP, U0359 was the only code present. Visual inspection revealed a faulty BCM.
Solution: Replaced the BCM and performed a system function test using the GeekOBD APP.
Cost: $650 (BCM $500, labor $150)
Result: All symptoms resolved, and the vehicle functioned normally post-repair.
Case Study 2: Wiring Repair on 2017 Dodge Ram
Vehicle: 2017 Dodge Ram, 75,000 miles
Problem: Customer experienced a check engine light and erratic gauge behavior.
Diagnosis: Diagnostic scan revealed U0359; inspection found corroded wiring.
Solution: Repaired the damaged wiring and secured all connections.
Cost: $200 (labor $100, materials $100)
Result: Restored proper communication and resolved all electrical issues.