U1064
Lost Communications With Body Control Module
U1064 is an OBD-II diagnostic trouble code meaning: Lost Communications With Body Control Module. Common causes: open or short circuit in the can bus, problems with power supply or grounding of the bcu. Estimated repair cost: $22–167.
Symptoms
- Some body controls do not work (windows, lights, etc.)
- Check Engine Light Is On
- Errors in other vehicle systems
- Central locking malfunctions
Causes
- Open or short circuit in the CAN bus
- Problems with power supply or grounding of the BCU
- Malfunction of the body control unit itself
- Damage to the wiring harness between modules
- Corrosion or poor contact in connectors
How to Fix
- Check fuses associated with the control unit
- Diagnose the integrity of the CAN bus
- Check power and grounding of the body control module
- Inspect connectors and wiring harness for damage
- If necessary, replace or reflash the BCU
Related codes
FAQ
What does the U1064 code mean?
U1064 is an OBD-II diagnostic trouble code that indicates: Lost Communications With Body Control Module
What causes a U1064 error code?
The most common causes of U1064 include: Open or short circuit in the CAN bus; Problems with power supply or grounding of the BCU; Malfunction of the body control unit itself; Damage to the wiring harness between modules.
How do I fix a U1064 diagnostic trouble code?
To fix U1064: Check fuses associated with the control unit. Diagnose the integrity of the CAN bus. Check power and grounding of the body control module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U1064?
Limited driving only, diagnose soon
How much does it cost to fix U1064?
The estimated repair cost for U1064 is $22–167. Actual cost depends on your vehicle, location, and labor rates.
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