U2107
Lost Communication With Body Control Module
U2107 is an OBD-II diagnostic trouble code meaning: Lost Communication With Body Control Module. Common causes: broken or damaged wires in the harness, poor contact in bcm connectors. Estimated repair cost: $56–278.
Symptoms
- Some body functions do not work (lighting, power windows)
- Check Engine Light Is On
- There may be malfunctions in the central locking system.
- Errors in other BCM related systems
- Problems with memory settings for seats and mirrors
Causes
- Broken or damaged wires in the harness
- Poor contact in BCM connectors
- Malfunction of the body control module itself
- BCM power or ground problems
- Software failure in the module
How to Fix
- Check the integrity of the wiring harness to the BCM
- Inspect and clean the connector contacts
- Check power supply and grounding of the module
- Scan the module for other errors
- If necessary, replace or reflash the BCM
Related codes
FAQ
What does the U2107 code mean?
U2107 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Body Control Module
What causes a U2107 error code?
The most common causes of U2107 include: Broken or damaged wires in the harness; Poor contact in BCM connectors; Malfunction of the body control module itself; BCM power or ground problems.
How do I fix a U2107 diagnostic trouble code?
To fix U2107: Check the integrity of the wiring harness to the BCM. Inspect and clean the connector contacts. Check power supply and grounding of the module. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U2107?
Limited driving only, diagnose soon
How much does it cost to fix U2107?
The estimated repair cost for U2107 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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