Quick Answer
U0887 means: DTC U0887 indicates a communication issue between the vehicle's control modules.
Can I drive with U0887? Immediate attention is advised to avoid potential safety risks.
Common Questions
What does U0887 mean and how does it affect my car?
DTC U0887 indicates a communication error between your vehicle's electronic control modules. This can lead to poor engine performance and safety issues, as critical systems may not function correctly.
What are the most common causes of U0887 and how much does it cost to fix?
Common causes include faulty wiring, malfunctioning control modules, and poor maintenance practices. Repair costs can range from $100 for wiring repairs to $800 for control module replacements.
Can I drive my car with U0887 or should I stop immediately?
It is not safe to drive a vehicle with DTC U0887, as communication failures can lead to significant performance issues and safety risks. It's best to have it diagnosed and repaired promptly.
How can I diagnose U0887 myself using GeekOBD APP?
Using the GeekOBD APP, perform an OBD2 scan and retrieve all trouble codes. Analyze the freeze frame data to understand when the code was triggered and check for any related codes that may provide further insights.
What vehicles are most commonly affected by U0887?
Commonly affected vehicles include the 2015-2019 Chevrolet Silverado and GMC Sierra. Other models may also experience this code, particularly those with complex electronic systems.
How can I prevent U0887 from happening again?
Regular vehicle maintenance, including electrical system inspections and addressing wiring issues promptly, can help prevent the occurrence of DTC U0887.
What is U0887?
DTC U0887 is a communication error code that indicates a problem with the data bus communication between the control modules in your vehicle. Specifically, this code signifies that the vehicle's control modules are unable to communicate properly, which can lead to various operational issues. In vehicles such as the 2015-2019 Chevrolet Silverado and GMC Sierra, this code can trigger warning lights on the dashboard and affect systems such as the engine control unit, transmission control unit, and stability control systems. A malfunction in the communication network can result in erratic behaviors like poor acceleration, instability during driving, or even complete loss of certain functions. This issue often arises from faulty wiring, corroded connectors, or a damaged control module. Ignoring this code can lead to more significant problems, such as engine performance issues or safety hazards if critical systems fail. It’s essential to address DTC U0887 promptly to ensure your vehicle operates safely and efficiently.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0887 is present:
- The check engine light may remain illuminated, indicating a persistent issue with the vehicle's electronic systems.
- Drivers may experience erratic engine performance, such as stalling or hesitation during acceleration, making the vehicle difficult to control.
- Fuel economy can decrease significantly, often by 15-20%, due to improper engine management caused by communication failures.
- The transmission may shift roughly or fail to engage properly, resulting in a jarring driving experience.
- Dashboard warning lights for stability control or traction control may activate, indicating potential safety system malfunctions.
Possible Causes
Most common causes of U0887 (ordered by frequency):
- The most common cause is a fault in the CAN bus wiring, which occurs in approximately 60% of cases. This can include damaged wires, loose connections, or corrosion that disrupts communication.
- A malfunctioning control module, such as the engine or transmission control module, can account for about 25% of U0887 occurrences. This typically requires replacement or reprogramming.
- Poor vehicle maintenance practices can lead to electrical issues, making up around 10% of cases. Regular inspections and cleaning of connectors can help prevent these issues.
- Less common causes include electronic component failures, which can be serious if they involve critical systems like ABS or stability control, affecting vehicle safety.
- Rarely, software glitches in the vehicle's control units can trigger this code, often resolved through software updates or reprogramming.
U0887 Repair Costs
Cost Breakdown by Repair Type
Wiring Repair
Repairing or replacing damaged wiring and connectors in the CAN bus system.
- Total: $100 - $300
- Success rate: 85%
Control Module Replacement
Replacing a faulty control module, which may require programming.
- Total: $400 - $800
- Success rate: 90%
Electrical System Inspection
Comprehensive check of the vehicle's electrical systems and components.
- Total: $75 - $150
- Success rate: Varies
Money-Saving Tips for U0887
- 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 U0887 Diagnosis Process
Follow these systematic steps to accurately diagnose U0887. Each step builds on the previous one to ensure accurate diagnosis.
Step 1: Step 1: Conduct an initial visual inspection of the vehicle's wiring and connectors, looking for signs of wear, damage, or corrosion, which should take about 5-10 minutes
Step 1: Conduct an initial visual inspection of the vehicle's wiring and connectors, looking for signs of wear, damage, or corrosion, which should take about 5-10 minutes.
Step 2: Step 2: Use the GeekOBD APP to perform an OBD2 scan and retrieve all diagnostic trouble codes along with freeze frame data to gather context about the fault, which may take 10-15 minutes
Step 2: Use the GeekOBD APP to perform an OBD2 scan and retrieve all diagnostic trouble codes along with freeze frame data to gather context about the fault, which may take 10-15 minutes.
Step 3: Step 3: Test suspected components using a multimeter or specialized diagnostic tools to check for proper voltage and resistance, expected time is 20-30 minutes
Step 3: Test suspected components using a multimeter or specialized diagnostic tools to check for proper voltage and resistance, expected time is 20-30 minutes.
Step 4: Step 4: After repairs, perform a system function test to confirm that all systems are operating correctly and clear any stored codes, which should take about 10-15 minutes
Step 4: After repairs, perform a system function test to confirm that all systems are operating correctly and clear any stored codes, which should take about 10-15 minutes.
Step 5: Step 5: Finally, perform a road test under various driving conditions to ensure the issue is resolved and the vehicle operates as expected, typically taking 15-20 minutes
Step 5: Finally, perform a road test under various driving conditions to ensure the issue is resolved and the vehicle operates as expected, typically taking 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: Repair Case: 2016 Chevrolet Silverado 1500
Vehicle: 2016 Chevrolet Silverado 1500, 75,000 miles
Problem: Customer reported check engine light and poor acceleration.
Diagnosis: Using GeekOBD, retrieved U0887 and analyzed wiring under the dash, finding a damaged wire.
Solution: Repaired the damaged wire and cleared the codes.
Cost: $200 (includes parts and labor)
Result: The vehicle's performance improved significantly, and the check engine light remained off during subsequent tests.
Case Study 2: Repair Case: 2017 GMC Sierra 2500HD
Vehicle: 2017 GMC Sierra 2500HD, 60,000 miles
Problem: Customer complained of stability control warnings and erratic shifting.
Diagnosis: After scanning with GeekOBD, diagnosed U0887 and found a faulty control module.
Solution: Replaced the control module and reprogrammed it.
Cost: $650 (including parts and labor)
Result: Post-repair, the vehicle operated smoothly, and all warning lights were cleared.