Quick Answer
U059D means: U059D indicates a communication failure between vehicle control modules.
Can I drive with U059D? Address immediately to prevent further issues and safety risks.
Common Questions
What does U059D mean and how does it affect my car?
DTC U059D indicates a communication error between your vehicle's control modules, which can lead to various performance issues. If you notice warning lights, erratic behavior, or decreased fuel efficiency, address this code promptly to prevent further complications.
What are the most common causes of U059D and how much does it cost to fix?
Common causes include damaged wiring (60%), failed modules (25%), and grounding issues (10%). Repair costs can range from $150 for wiring repairs to over $1,200 for module replacements, depending on the extent of the issue.
Can I drive my car with U059D or should I stop immediately?
It's advisable to stop driving if U059D is present, as it can lead to further issues like loss of power or control systems malfunctioning, which may pose safety risks.
How can I diagnose U059D myself using GeekOBD APP?
Using the GeekOBD APP, you can scan for trouble codes, view freeze frame data, and monitor vehicle performance in real-time to pinpoint issues related to U059D.
What vehicles are most commonly affected by U059D?
DTC U059D frequently affects 2015-2018 Chevrolet and GMC models, including Silverado and Sierra, along with some Cadillac and Buick vehicles that utilize similar networks.
How can I prevent U059D from happening again?
Regularly inspect your vehicle's wiring and connectors, keep up with software updates, and ensure that all electrical systems are properly grounded to prevent the recurrence of U059D.
What is U059D?
DTC U059D indicates a communication issue between various control modules in your vehicle, particularly those responsible for body and powertrain functions. This code is common in models such as the 2015-2018 Chevrolet Silverado and GMC Sierra, where multiple modules need to work cohesively to ensure optimal performance. When U059D is triggered, it suggests that one or more modules are not communicating correctly, which can lead to decreased efficiency or even safety hazards. This could affect essential systems like the ABS, traction control, or engine management systems. In practical terms, if your vehicle is showing the U059D code, you might notice various symptoms such as warning lights on the dashboard, erratic behavior in the vehicle’s functions, or even a decrease in fuel efficiency. Ignoring this code can lead to further complications, so it’s crucial to address it promptly. The underlying issue might stem from damaged wiring, failed modules, or issues in the vehicle's communication network, making it essential to conduct a thorough diagnostic to pinpoint the exact cause.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U059D is present:
- Check engine light or other warning lights illuminate on the dashboard, indicating potential issues.
- Erratic vehicle behavior, such as intermittent power loss or unresponsive controls, leading to a frustrating driving experience.
- Fuel economy may decrease by 10-20% due to inefficient communication between modules affecting engine performance.
- Delayed response in electronic features, such as power windows or door locks, can be experienced.
- Unusual noises from the engine compartment may occur if modules are not properly communicating.
Possible Causes
Most common causes of U059D (ordered by frequency):
- Damaged wiring or connectors (60% likelihood) - Often caused by wear and tear, corrosion, or environmental factors.
- Failed control module (25% likelihood) - A malfunction in the module responsible for communication can disrupt the network.
- Ground issues (10% likelihood) - Poor grounding can lead to communication problems between control units.
- Less common: Software glitches (3% likelihood) - Occasionally, a software update or bug may cause communication failures.
- Rare: Physical damage to the control module (2% likelihood) - Impact or water damage can result in total module failure.
U059D Repair Costs
Cost Breakdown by Repair Type
Wiring Repair
Repair or replace damaged wiring and connectors to restore communication between modules.
- Total: $150 - $400
- Success rate: 80%
Control Module Replacement
Replace failed control modules that are not communicating properly.
- Total: $500 - $1,200
- Success rate: 90%
Software Update
Perform necessary software updates to fix communication glitches.
- Total: $100 - $200
- Success rate: 75%
Money-Saving Tips for U059D
- 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 U059D Diagnosis Process
Follow these systematic steps to accurately diagnose U059D. 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 (20-30 minutes)
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components (20-30 minutes).
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes (10-15 minutes)
Step 4: System function test - Verify proper operation after repairs and clear codes (10-15 minutes).
Step 5: Step 5: Road test verification - Drive vehicle under various conditions to confirm repair success (15-20 minutes)
Step 5: Road test verification - Drive vehicle under various conditions to confirm repair success (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: 2017 Chevrolet Silverado - Wiring Repair
Vehicle: 2017 Chevrolet Silverado, 45,000 miles
Problem: Customer reported dashboard warning lights and erratic engine performance.
Diagnosis: Diagnosis revealed damaged wiring in the communication harness.
Solution: Replaced damaged wiring and secured connections.
Cost: $350
Result: All systems returned to normal operation, and warning lights were cleared.
Case Study 2: 2016 GMC Sierra - Control Module Replacement
Vehicle: 2016 GMC Sierra, 60,000 miles
Problem: Customer experienced intermittent power loss and multiple warning lights.
Diagnosis: Diagnostics indicated a failed control module responsible for communication.
Solution: Replaced the faulty control module and updated software.
Cost: $1,100
Result: Vehicle performance improved, and no further issues were reported.