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U2107 Chevrolet Code - Lost Communication With Body Control Module

Quick Answer

The U2107 code for Chevrolet vehicles indicates that there has been a loss of communication with the Body Control Module (BCM). Common causes include Poor electrical connection or wiring issues, Faulty Body Control Module, Water damage or corrosion affecting connections. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.

What it means
U2107 Chevrolet indicates Lost Communication With Body Control Module.
Common causes
Common causes include Poor electrical connection or wiring issues, Faulty Body Control Module, Water damage or corrosion affecting connections.
Severity
High - diagnose this code as soon as possible.
Can I drive?
Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code U2107 Chevrolet Description

The U2107 code for Chevrolet vehicles indicates that there has been a loss of communication with the Body Control Module (BCM). The BCM is a crucial component of the vehicle's electronic system, responsible for controlling various functions such as interior and exterior lighting, power windows, door locks, and more. When communication with the BCM is lost, it can lead to malfunctions in these systems, potentially affecting the vehicle's overall performance and safety.

OBDII Code U2107 Chevrolet - Lost Communication With Body Control Module
U2107 Chevrolet Code - Lost Communication With Body Control Module

Common Causes of U2107 Chevrolet

  1. Poor electrical connection or wiring issues
  2. Faulty Body Control Module
  3. Water damage or corrosion affecting connections
  4. Software glitches or communication errors
  5. Physical damage to the BCM or related components

Symptoms of U2107 Chevrolet

  1. Non-functioning power windows or door locks
  2. Inoperative interior or exterior lighting
  3. Issues with keyless entry system
  4. Malfunctioning windshield wipers
  5. Warning lights illuminated on the dashboard

How to Fix U2107 Chevrolet

  1. Start by checking the electrical connections and wiring related to the BCM for any signs of damage or corrosion.
  2. Perform a diagnostic scan to identify the specific issue with the BCM and address any software-related problems.
  3. If necessary, replace the Body Control Module with a new or refurbished unit.
  4. Clear the diagnostic trouble codes and test the system to ensure proper communication and functionality.
  5. Conduct a final check to verify that all affected systems are operating correctly before returning the vehicle to service.

Cost to Fix U2107 Chevrolet

The cost of repairing a lost communication issue with the Body Control Module can vary depending on the specific cause of the problem and the cost of parts and labor. In general, the repair for this type of issue may range from $200 to $600, including the cost of diagnostic tests, replacement parts, and labor. It's important to note that labor rates at auto repair shops can vary, so it's advisable to obtain quotes from different shops to get a more accurate estimate.

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about U2107 Chevrolet Code

1. What are the common symptoms of OBDII code U2107 in a Chevrolet indicating a lost communication with the Body Control Module (BCM)?

- Common symptoms include issues with power windows, door locks, interior lights, and other electronic components controlled by the BCM.

2. What are some possible causes for the U2107 code in a Chevrolet?

- The code may be triggered by a faulty BCM, damaged wiring or connectors, a drained battery, or a software glitch within the BCM system.

3. How can I diagnose the U2107 code related to a lost communication with the BCM in my Chevrolet?

- Use an OBDII scanner to retrieve the specific error codes, inspect the wiring and connectors for any damage, and perform a BCM reset to see if the communication is restored.

4. Can a DIY enthusiast repair the U2107 code issue in a Chevrolet, or is professional help necessary?

- While some minor wiring checks and resets can be done by a DIY enthusiast, resolving complex BCM issues may require professional diagnosis and repair.

5. What are some tips for troubleshooting and repairing the U2107 code in a Chevrolet?

- Start by checking the fuses related to the BCM, ensuring proper battery voltage, and inspecting the BCM connectors for corrosion or looseness before seeking professional help if needed.

6. Is it safe to continue driving my Chevrolet with the U2107 code indicating a communication problem with the BCM?

- It is advisable to address the issue promptly to prevent potential malfunctions in critical systems controlled by the BCM, ensuring the safety and proper functionality of the vehicle.

7. How much does it typically cost to repair the U2107 code in a Chevrolet at a dealership or a certified repair shop?

- The cost can vary depending on the exact cause of the issue, but repairs related to the U2107 code may range from $100 to $500 or more, including parts and labor.

8. Can intermittent communication problems with the BCM trigger the U2107 code in a Chevrolet?

- Yes, intermittent communication issues between the BCM and other modules or sensors can trigger the U2107 code, requiring thorough diagnosis to pinpoint the root cause.

9. Are there any recalls or technical service bulletins related to the U2107 code in Chevrolet vehicles?

- It's recommended to check with a Chevrolet dealership or the manufacturer's website for any recalls or technical service bulletins addressing the U2107 code and related BCM communication issues.

10. What is the role of the Body Control Module in a Chevrolet, and why is it important to address communication issues with this module promptly?

- The BCM controls various electrical components and functions in the vehicle, such as lighting, door locks, and security systems. Promptly addressing communication issues with the BCM ensures the proper operation of these essential functions.

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