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U1064 Chevrolet Code - Lost Communications With Body Control Module

Quick Answer

The U1064 code for Chevrolet vehicles indicates that there is a communication problem between the Engine Control Module (ECM) and the Body Control Module (BCM). Common causes include Faulty wiring or connectors between the ECM and BCM, A malfunctioning BCM, A malfunctioning ECM. 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
U1064 Chevrolet indicates Lost Communications With Body Control Module.
Common causes
Common causes include Faulty wiring or connectors between the ECM and BCM, A malfunctioning BCM, A malfunctioning ECM.
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 14, 2024
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Code U1064 Chevrolet Description

The U1064 code for Chevrolet vehicles indicates that there is a communication problem between the Engine Control Module (ECM) and the Body Control Module (BCM). The BCM is responsible for controlling various functions related to the vehicle's body, such as interior lights, power windows, door locks, and security systems. When communication is lost between the ECM and BCM, it can lead to issues with these systems not functioning properly.

OBDII Code U1064 Chevrolet - Lost Communications With Body Control Module
U1064 Chevrolet Code - Lost Communications With Body Control Module

Common Causes of U1064 Chevrolet

  1. Faulty wiring or connectors between the ECM and BCM
  2. A malfunctioning BCM
  3. A malfunctioning ECM
  4. Software issues or glitches in the communication system
  5. Electrical interference or damage to the communication lines

Symptoms of U1064 Chevrolet

  1. Interior lights not working properly
  2. Power windows or door locks malfunctioning
  3. Security system not arming or disarming correctly
  4. Warning lights on the dashboard related to body control functions
  5. In some cases, the vehicle may not start

How to Fix U1064 Chevrolet

  1. Begin by checking the wiring and connectors between the ECM and BCM for any signs of damage or corrosion. Repair or replace any damaged components.
  2. Use a diagnostic tool to reset the communication system and attempt to establish a connection between the ECM and BCM.
  3. If the issue persists, consider replacing the BCM with a new unit and reprogramming it to work with the vehicle.
  4. If the problem still persists, the ECM may need to be inspected and potentially replaced if deemed faulty.
  5. Finally, perform a thorough test drive to ensure that the communication between the ECM and BCM is functioning correctly and that all affected systems are working as intended.

Cost to Fix U1064 Chevrolet

The cost of repairing a U1064 code on a Chevrolet vehicle can vary depending on the specific cause of the issue and the labor rates in your area. In general, the cost of parts for this repair can range from $200 to $500, with labor costs adding an additional $100 to $300. Keep in mind that diagnostic time and labor rates at auto repair shops can vary, so it's recommended to get a few quotes from different shops to determine the most cost-effective option for your situation.

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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 U1064 Chevrolet Code

1. What are the common symptoms of OBDII code U1064 Chevrolet (Lost Communications With Body Control Module)?

- Common symptoms include issues with power windows, door locks, interior lights, and other body control functions.

2. What are the possible causes of U1064 Chevrolet code?

- The code may be triggered by a faulty body control module, wiring issues, poor connections, or a problem with the vehicle's network communication system.

3. How can I diagnose the reason behind the U1064 Chevrolet code?

- Diagnosis typically involves checking for loose or damaged wiring, testing the body control module for functionality, and inspecting the network communication system using a scan tool.

4. Can a DIY enthusiast repair U1064 Chevrolet code at home?

- While some simple wiring issues may be repairable by DIY enthusiasts, diagnosing and repairing problems with the body control module or network communication system may require professional expertise.

5. Is it safe to continue driving with the U1064 Chevrolet code illuminated?

- It is generally not recommended to drive with the U1064 code active, as it may affect the proper functioning of critical vehicle systems controlled by the body control module.

6. How much does it typically cost to repair U1064 Chevrolet code?

- The cost of repair can vary depending on the underlying issue, but it's important to budget for diagnostic fees, parts replacement costs, and labor charges from a qualified mechanic or dealership.

7. Are there any preventive measures to avoid triggering the U1064 Chevrolet code?

- Regular vehicle maintenance, checking for loose connections or wiring issues, and addressing any warning signs of body control module problems promptly can help prevent the U1064 code from appearing.

8. Can the U1064 code be intermittent or permanent?

- The U1064 code can appear intermittently if there are sporadic communication issues, but if the problem persists, it may become a permanent fault that needs immediate attention.

9. Will resetting the OBDII system clear the U1064 Chevrolet code?

- Resetting the OBDII system may temporarily clear the code, but if the underlying issue is not addressed, the code is likely to reappear after some time.

10. How long does it take to repair U1064 Chevrolet code?

- The repair time for U1064 code can vary depending on the complexity of the issue, availability of parts, and the mechanic's workload, but it's advisable to consult with a professional for an accurate estimate.

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