U0653 - Communication Error in Vehicle Control Module - Common in 2015-2018 Ford F-150

Quick Answer

U0653 means: U0653 indicates a communication error between control modules in your vehicle.

Fix: Check and replace faulty components Cost: $100 - $300 Time: 90-180 minutes

Can I drive with U0653? Address immediately to prevent further issues with vehicle operation.

Common Questions

What does U0653 mean and how does it affect my car?

The U0653 code signifies a communication problem between different vehicle control modules. This can lead to various operational issues, such as erratic instrument readings or problems with vehicle safety features. If unresolved, it can affect the overall performance and reliability of your vehicle.

What are the most common causes of U0653 and how much does it cost to fix?

Common causes of U0653 include damaged wiring, malfunctioning control modules, and software issues. Repair costs can range from $100 for fixing wiring to upwards of $800 for replacing a control module, depending on the specific issue.

Can I drive my car with U0653 or should I stop immediately?

While you may be able to drive your vehicle with a U0653 code, it is not recommended. Ignoring this code can lead to more severe issues, including loss of critical vehicle functions and safety features. It's best to address the problem as soon as possible.

How can I diagnose U0653 myself using GeekOBD APP?

Using the GeekOBD APP, you can perform a full OBD2 scan to retrieve the U0653 code and any related codes. The app also provides freeze frame data, which can offer insights into the vehicle’s conditions when the code was triggered, aiding in your diagnosis.

What vehicles are most commonly affected by U0653?

U0653 is commonly reported in vehicles like the 2015-2018 Ford F-150 and various models from Chevrolet, Dodge, and GMC. It's important to check for any recalls or Technical Service Bulletins (TSBs) related to communication issues for your specific vehicle.

How can I prevent U0653 from happening again?

To prevent U0653 from recurring, ensure regular maintenance of your vehicle’s electrical systems. Periodically inspect wiring and connectors for wear and tear, and keep your vehicle’s software updated to the latest version.

What is U0653?

The U0653 diagnostic trouble code indicates a communication error between the vehicle's control modules, specifically indicating a problem with the data being exchanged. This code is typically triggered when one module receives a signal that is either incorrect or not understood from another module. Modern vehicles are equipped with numerous onboard systems that communicate through a network, often utilizing protocols like CAN (Controller Area Network) or LIN (Local Interconnect Network). When a module fails to communicate properly, it can lead to various issues like erratic instrument panel readings, malfunctioning safety features, or even disabling the vehicle's starting system. For example, if you own a 2016 Ford F-150, you might notice that your dashboard lights flicker inconsistently or your vehicle’s transmission shifts erratically. Ignoring this code can lead to more severe complications, affecting overall vehicle performance and safety. Being proactive about diagnosing and addressing the U0653 code is vital for maintaining your vehicle's health and ensuring a safe driving experience.

System: U - Network (Communication, CAN Bus)

Symptoms

Common symptoms when U0653 is present:

  • The check engine light remains illuminated, indicating an underlying issue that requires immediate attention.
  • Inconsistent dashboard readings, where speedometer or fuel gauge fluctuates unexpectedly, can lead to driver confusion and misjudgment.
  • Transmission shifting issues, such as rough or delayed shifts, can make driving uncomfortable and potentially unsafe.
  • Erratic operation of safety features, such as ABS or traction control, may occur, impacting overall vehicle safety.
  • Difficulties starting the engine could arise, potentially leaving you stranded if not addressed promptly.

Possible Causes

Most common causes of U0653 (ordered by frequency):

  1. The most common cause of U0653 is damaged wiring or loose connectors between control modules, with a likelihood of about 45%. This typically happens due to wear and tear or exposure to moisture.
  2. Another prevalent cause is a malfunctioning control module, which might make up around 30% of cases. This can occur due to manufacturing defects or electrical surges.
  3. A third cause could be software issues, where outdated firmware in one of the control units leads to communication failures. Regular updates can help prevent this.
  4. Less common but serious causes include water intrusion in control modules, which can severely damage electronic components and lead to costly repairs.
  5. A rare but possible cause includes interference from aftermarket modifications, such as non-standard wiring or electronic devices that disrupt communication networks.

U0653 Repair Costs

Cost Breakdown by Repair Type

Wiring Repair

Repair or replace damaged wiring or connectors.

  • Total: $100 - $300
  • Success rate: 80%
Control Module Replacement

Replacing a faulty control module that is unable to communicate correctly.

  • Total: $300 - $800
  • Success rate: 90%
Software Update

Updating the software of the control module to resolve communication issues.

  • Total: $50 - $150
  • Success rate: 70%
Money-Saving Tips for U0653
  • 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 U0653 Diagnosis Process

Follow these systematic steps to accurately diagnose U0653. Each step builds on the previous one to ensure accurate diagnosis.

Step 1: Step 1: Initial visual inspection - Look for damaged wiring, loose connections, or signs of corrosion that could affect communication (5-10 minutes)

Step 1: Initial visual inspection - Look for damaged wiring, loose connections, or signs of corrosion that could affect communication (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 the GeekOBD APP - Retrieve all codes and freeze frame data to understand the fault context (10-15 minutes)

Step 2: OBD2 scan with the 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 or specific diagnostic tools to test suspected components and wiring integrity (20-30 minutes)

Step 3: Component testing - Use a multimeter or specific diagnostic tools to test suspected components and wiring integrity (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: System function test - Verify proper operation of control modules after repairs and clear codes using the GeekOBD APP (10-15 minutes)

Step 4: System function test - Verify proper operation of control modules after repairs and clear codes 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: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no codes return (15-20 minutes)

Step 5: Road test verification - Drive the vehicle under various conditions to confirm repair success and ensure no codes return (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: Repairing Communication Issues on a 2016 Ford F-150

Vehicle: 2016 Ford F-150, 45,000 miles

Problem: Customer reported intermittent issues with the dashboard lights and erratic transmission shifts.

Diagnosis: A thorough scan revealed the U0653 code. Visual inspection found a corroded connector leading to the transmission control module.

Solution: Cleaned the corroded connectors and replaced damaged wiring. Updated the control module software for good measure.

Cost: $350 (including labor and parts)

Result: Post-repair, the customer reported stable dashboard readings and smooth transmission shifts.

Case Study 2: Resolving U0653 in a 2017 Chevrolet Silverado

Vehicle: 2017 Chevrolet Silverado, 30,000 miles

Problem: Owner experienced difficulty starting the vehicle and persistent check engine light.

Diagnosis: OBD2 scan confirmed U0653. Further testing indicated a faulty engine control module.

Solution: Replaced the engine control module and performed a software update.

Cost: $700 (specific cost breakdown: $500 for the module, $200 for labor)

Result: The vehicle started reliably post-repair, with no further issues reported.

Diagnose U0653

Use GeekOBD APP for professional diagnosis!

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  • Professional-grade analysis
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Code Information

Code: U0653
System: Network (Communication, CAN Bus)
Severity: HIGH
Category: Network Codes