U0145 - Understanding Communication Issues in 2015-2020 Ford F-150 and 2016-2019 Chevrolet Silverado

Quick Answer

U0145 means: U0145 indicates a communication failure between the PCM and the door control module.

Fix: Check and replace faulty components Cost: $200 - $400 Time: 90-180 minutes

Can I drive with U0145? Immediate attention is recommended to avoid further electrical issues.

Common Questions

What does U0145 mean and how does it affect my car?

The U0145 code indicates a communication failure between your vehicle's powertrain control module and the door control module. This can lead to various problems, including malfunctioning locks and windows, affecting both convenience and safety. If this issue isn’t addressed promptly, it may escalate into more severe electrical issues.

What are the most common causes of U0145 and how much does it cost to fix?

Common causes of U0145 include a faulty door control module, wiring issues, and software glitches. Repair costs can range from $50 for a software update to around $400 for a complete module replacement. It's essential to accurately diagnose the root cause to avoid unnecessary expenses.

Can I drive my car with U0145 or should I stop immediately?

While you may be able to drive your vehicle with the U0145 code, it is not advisable. The communication failure can lead to safety issues, such as malfunctioning locks and stability control problems. It's best to have the issue diagnosed and repaired as soon as possible.

How can I diagnose U0145 myself using GeekOBD APP?

To diagnose U0145 with the GeekOBD APP, start by connecting the app to your vehicle’s OBD2 port. Run a full diagnostic scan to retrieve all codes and freeze frame data. This will provide context to the U0145 code and help you identify potential issues, such as related codes that may give you a clearer picture.

What vehicles are most commonly affected by U0145?

The U0145 code is frequently seen in the 2015-2020 Ford F-150 and the 2016-2019 Chevrolet Silverado. These models may experience communication issues due to common electrical systems shared across them. Always check for any recalls or TSBs related to this code for your specific vehicle.

How can I prevent U0145 from happening again?

To prevent the U0145 code from recurring, ensure regular maintenance of your vehicle's electrical systems. This includes checking for damaged wiring, ensuring all connectors are tight and corrosion-free, and keeping your software updated. Regular inspections can help catch potential issues early.

What is U0145?

The diagnostic trouble code (DTC) U0145 indicates a communication issue between the powertrain control module (PCM) and other control modules in your vehicle. Essentially, it means that the PCM is unable to communicate with the door control module. This can lead to various vehicle issues, such as malfunctioning power windows, door locks, and even stability control systems. When this code is triggered, it may also cause your vehicle's check engine light to illuminate. The implications of U0145 are significant, as they can affect the overall functionality and safety of your vehicle. For instance, if the door control module fails to communicate properly, it may prevent you from locking your doors automatically or operating the windows from the driver’s side. This code is commonly found in vehicles such as the 2015-2020 Ford F-150 and the 2016-2019 Chevrolet Silverado. If left unresolved, you may experience decreased functionality in your vehicle and potentially lead to further electrical issues down the line. Hence, understanding this code and addressing it promptly is crucial for your vehicle's long-term performance and safety.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0145 is present:

  • Check engine light stays on constantly, indicating a communication issue that needs to be addressed.
  • Power windows may not operate, causing inconvenience and potential safety concerns.
  • Door locks may fail to respond to the key fob or manual operation, leading to security issues.
  • Stability control system malfunctions, which may affect vehicle handling and safety.
  • Increased electrical drain on the battery, possibly leading to starting issues.

Possible Causes

Most common causes of U0145 (ordered by frequency):

  1. {'cause': 'Faulty door control module - 40% likelihood', 'details': 'The door control module itself may have failed due to age or manufacturing defects.'}
  2. {'cause': 'Wiring issues - 30% likelihood', 'details': 'Damaged wiring or loose connections in the communication circuit can disrupt signals between modules.'}
  3. {'cause': 'Software glitches - 20% likelihood', 'details': 'Outdated software in the PCM or other control modules can lead to communication errors.'}
  4. {'cause': 'Power supply issues - 5% likelihood', 'details': 'Insufficient power supply to the door control module can cause it to malfunction.'}
  5. {'cause': 'Ground connection problems - 5% likelihood', 'details': 'Poor ground connections can lead to erratic behavior of the control modules.'}

U0145 Repair Costs

Cost Breakdown by Repair Type

Replace door control module

Replacing the faulty door control module can resolve the communication issue.

  • Total: $200 - $400
  • Success rate: 85%
Repair wiring issues

Fixing damaged wiring or connections in the communication circuit.

  • Total: $100 - $300
  • Success rate: 75%
Software update

Updating the software in the PCM and other control modules.

  • Total: $50 - $150
  • Success rate: 65%
Money-Saving Tips for U0145
  • 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 U0145 Diagnosis Process

Follow these systematic steps to accurately diagnose U0145. 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).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
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).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 3: Step 3: Component testing - Use a multimeter to check the voltage and ground at the door control module (20-30 minutes)

Step 3: Component testing - Use a multimeter to check the voltage and ground at the door control module (20-30 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 4: Step 4: Software update - Check for firmware updates for the PCM and other modules using the GeekOBD APP (10-15 minutes)

Step 4: Software update - Check for firmware updates for the PCM and other modules using the GeekOBD APP (10-15 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.
Step 5: Step 5: Clear codes and road test - Clear the DTCs and take the vehicle for a test drive to confirm repair success (15-20 minutes)

Step 5: Clear codes and road test - Clear the DTCs and take the vehicle for a test drive to confirm repair success (15-20 minutes).

GeekOBD APP Tip: Use GeekOBD APP to monitor real-time data during this diagnostic step for accurate results and professional-grade analysis.

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: Fixing U0145 in a 2018 Ford F-150

Vehicle: 2018 Ford F-150, 45,000 miles

Problem: Customer reported that the power windows and door locks were inoperative.

Diagnosis: Performed an OBD2 scan using GeekOBD APP, which revealed DTC U0145. Inspected wiring and found a damaged connector.

Solution: Replaced the damaged connector and cleared the codes. Windows and locks functioned properly afterward.

Cost: $250 (parts: $50, labor: $200)

Result: Customer reported full functionality restored and was satisfied with the repair.

Case Study 2: Resolving U0145 in a 2017 Chevrolet Silverado

Vehicle: 2017 Chevrolet Silverado, 60,000 miles

Problem: Customer experienced intermittent power lock failures and check engine light.

Diagnosis: Used GeekOBD APP to scan and confirmed U0145. Conducted checks on the door control module and found outdated software.

Solution: Updated the software in the PCM and door control module. All functions restored.

Cost: $120 (software update, no parts needed)

Result: Customer reported all systems functioning correctly after the update.

Diagnose U0145

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: U0145
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes