Matrix LED Headlight Control Module Fault
The B0089 code means the vehicle's onboard diagnostic system has detected: Matrix LED Headlight Control Module Fault. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- hard
- Estimated cost
- $300 - $1500 (parts and labor)
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Common Symptoms
- Matrix segments not responding individually
- Glare reduction not working
- Matrix headlight warning
- All segments on or off instead of selective
Probable Causes (Ranked by Likelihood)
- Failed matrix LED control module Very High
- Camera module malfunction High
- Individual LED driver failure Moderate
- CAN bus fault to matrix controller Low
Step-by-Step Diagnostic Procedure
-
Scan matrix module for DTCs
-
Test individual segments with scan tool
-
Verify camera communication
-
Check CAN bus signals
Frequently Asked Questions
What are matrix LED headlights?
Multiple individually controlled LED segments that selectively illuminate while masking areas for oncoming drivers.
Are repairs expensive?
Yes, assemblies cost several thousand dollars.
Are they legal in the US?
Approved starting 2022 under updated FMVSS 108 regulations.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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