U1064 Code - Lost Communications With Body Control Module
Quick Answer
The U1064 code indicates that the engine control module (ECM) has lost communication with the body control module (BCM) in the vehicle. Common causes include Faulty wiring or connections between the ECM and BCM, Corrosion in the wiring harness, Failed BCM or 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 indicates Lost Communications With Body Control Module.
- Common causes
- Common causes include Faulty wiring or connections between the ECM and BCM, Corrosion in the wiring harness, Failed BCM or 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.
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Code U1064 Description
The U1064 code indicates that the engine control module (ECM) has lost communication with the body control module (BCM) in the vehicle. The BCM is responsible for controlling various electrical components in the vehicle, such as power windows, door locks, interior lights, and security systems. When communication is lost between the ECM and BCM, it can lead to issues with the operation of these systems, causing inconvenience and potential safety concerns for the driver. This code can also affect the overall performance of the vehicle, as various systems rely on communication between the ECM and BCM to function properly.
Common Causes of U1064
- Faulty wiring or connections between the ECM and BCM
- Corrosion in the wiring harness
- Failed BCM or ECM
- Software glitches or updates needed
- Electrical interference or signal disruption
Symptoms of U1064
- Power windows not working
- Interior lights staying on or not working
- Door locks malfunctioning
- Security system not engaging or disengaging
- Dashboard warning lights illuminated
How to Fix U1064
- Inspect wiring and connections between the ECM and BCM for any damage or corrosion.
- Test the BCM and ECM for proper functionality and communication.
- Update software in the BCM and ECM if needed.
- Replace any faulty BCM or ECM components.
- Clear the code and perform a test drive to ensure the issue has been resolved.
Cost to Fix U1064
The repair costs for addressing a U1064 code can vary depending on the specific cause of the communication loss. In general, the cost can range from $200 to $600 for parts and labor. However, it's important to note that the actual cost may be higher or lower based on the vehicle make and model, as well as the location and labor rates of the auto repair shop. It's advisable to consult with a professional mechanic or dealership to get an accurate estimate for the repair.
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Code U1064 Information for Specific Makes
- U1064 Buick — Lost Communications With Body Control Module
- U1064 Cadillac — Lost Communications With Body Control Module
- U1064 Chevrolet — Lost Communications With Body Control Module
- U1064 GMC — Lost Communications With Body Control Module
- U1064 Pontiac — Lost Communications With Body Control Module
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