Quick Answer
U0C87 means: The U0C87 code signifies a communication error between the body control module and the powertrain control module.
Can I drive with U0C87? Prompt diagnosis and resolution are recommended to prevent further complications.
Common Questions
What does U0C87 mean and how does it affect my car?
The U0C87 code indicates a communication error between your vehicle's body control module and powertrain control module. This can lead to various performance issues, including erratic engine behavior and malfunctioning dashboard indicators. If ignored, it could escalate to more severe issues affecting drivability and safety.
What are the most common causes of U0C87 and how much does it cost to fix?
Common causes include a faulty body control module, wiring issues, or a malfunctioning powertrain control module, with repair costs ranging from $100 to $800 depending on the issue. Wiring repairs are generally less expensive, while module replacements can be pricier due to parts.
Can I drive my car with U0C87 or should I stop immediately?
While you may be able to drive your car with the U0C87 code, it is advisable to address the issue as soon as possible. Continuing to drive with this code can lead to compromised safety features and unpredictable vehicle behavior, which may pose risks on the road.
How can I diagnose U0C87 myself using GeekOBD APP?
To diagnose U0C87 using the GeekOBD APP, connect your OBD2 scanner, retrieve the codes along with freeze frame data, and analyze any related codes for context. The app can help you identify patterns and guide you in pinpointing the specific module or wiring issues.
What vehicles are most commonly affected by U0C87?
The U0C87 code frequently affects several Ford models, particularly from 2015 to 2020, including the F-150, Explorer, and Fusion. It's essential to check for any recalls or technical service bulletins related to this code for your vehicle.
How can I prevent U0C87 from happening again?
Preventive measures include regular vehicle maintenance checks, updating software for your BCM and PCM, and ensuring all electrical connections are secure and free from corrosion. Additionally, avoid aftermarket installations that could interfere with the vehicle's communication systems.
What is U0C87?
The U0C87 diagnostic trouble code (DTC) indicates a communication link error between the vehicle’s modules, specifically related to the body control module (BCM) and the powertrain control module (PCM). This error suggests that a fault has disabled the communication between these essential components. In practical terms, it can lead to various malfunctions, from minor inconveniences, like malfunctioning lights or erratic gauge readings, to more severe issues, such as compromised safety features. Affected vehicles often exhibit symptoms like a malfunctioning check engine light, which may remain illuminated. If not remedied, this could potentially affect vehicle performance and safety. It's essential for vehicle owners to understand that while this code may not immediately indicate a serious problem, ignoring it can lead to escalating issues that could affect drivability and safety. Commonly, this code has been reported in several Ford models manufactured between 2015 and 2020, including the Ford F-150 and Explorer. Hence, if you own one of these vehicles, it’s crucial to stay vigilant for any unusual behavior and address this code promptly to maintain optimal vehicle performance.
System: U - Network (Communication, CAN Bus)
Symptoms
Common symptoms when U0C87 is present:
- Check engine light stays on constantly, indicating a persistent issue with vehicle systems.
- Interior lights or dashboard indicators may flicker or not function correctly, impacting driver visibility.
- Engine performance may fluctuate, leading to hesitation during acceleration or inconsistent power delivery.
- Increased fuel consumption due to possible erratic sensor readings affecting fuel delivery.
- Safety features like stability control may become unreliable, posing risks while driving.
Possible Causes
Most common causes of U0C87 (ordered by frequency):
- A faulty body control module (BCM) is the most common cause, with a likelihood of 50%. This may happen due to software glitches or hardware failures.
- Wiring issues, such as damaged or corroded wires between the BCM and PCM, are the second most common cause, often leading to intermittent communication failures.
- A malfunctioning powertrain control module (PCM) could lead to this code being triggered, which can generally be prevented by regular software updates and diagnostics.
- Less common but serious causes include electrical shorts or grounding issues within the vehicle's wiring harness, which can lead to widespread electrical failures.
- Rarely, issues with aftermarket modifications or installations can disrupt communication protocols, resulting in the U0C87 code.
U0C87 Repair Costs
Cost Breakdown by Repair Type
BCM Replacement
Replacing the body control module if it is found faulty during diagnostics.
- Total: $400 - $800
- Success rate: 90%
Wiring Repair
Repairing damaged wiring or connectors between the BCM and PCM.
- Total: $100 - $300
- Success rate: 85%
Money-Saving Tips for U0C87
- 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 U0C87 Diagnosis Process
Follow these systematic steps to accurately diagnose U0C87. 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 takes about 5-10 minutes
Step 1: Initial visual inspection - Check for obvious signs like damaged wiring, loose connections, or corrosion, which takes about 5-10 minutes.
Step 2: Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context, taking approximately 10-15 minutes
Step 2: OBD2 scan with GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context, taking approximately 10-15 minutes.
Step 3: Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, which can require 20-30 minutes
Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components, which can require 20-30 minutes.
Step 4: Step 4: System function test - Verify proper operation after repairs and clear codes, typically taking 10-15 minutes
Step 4: System function test - Verify proper operation after repairs and clear codes, typically taking 10-15 minutes.
Step 5: Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, which generally takes about 15-20 minutes
Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success, which generally takes about 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: 2018 Ford F-150 Communication Failure
Vehicle: 2018 Ford F-150, 35,000 miles
Problem: Customer reported intermittent dashboard warning lights and a check engine light.
Diagnosis: After using the GeekOBD APP for diagnostics, the U0C87 code was retrieved. A visual inspection revealed corroded connectors.
Solution: Cleaned and repaired the wiring connectors and replaced the BCM. No further codes appeared after repairs.
Cost: $600 (parts and labor breakdown: $400 for BCM, $200 for labor)
Result: The vehicle operated normally post-repair with no recurring issues.
Case Study 2: 2019 Ford Explorer Wiring Issue
Vehicle: 2019 Ford Explorer, 22,000 miles
Problem: Owner experienced flickering lights and a persistent check engine light.
Diagnosis: Using the GeekOBD APP, the U0C87 code was retrieved. Further testing indicated a damaged wire in the harness.
Solution: Repaired the damaged wire and cleared the codes. Conducted a road test to ensure everything was functioning properly.
Cost: $150 (wiring repair and labor)
Result: All systems were restored to normal operation, and the check engine light remained off.