Left Cornering Light Circuit Malfunction
The B0075 code means the vehicle's onboard diagnostic system has detected: Left Cornering Light Circuit Malfunction. This is a low severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $10 - $200 (parts and labor)
Basic scanners skip body codes entirely. BlueDriver reads airbag, HVAC, lighting, and BCM codes through your phone.
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Common Symptoms
- Left cornering light does not illuminate
- Reduced illumination turning left
- Cornering light warning on dashboard
- No side illumination during left turns
Probable Causes (Ranked by Likelihood)
- Burned out cornering light bulb Very High
- Failed cornering light relay High
- Corroded cornering light socket Moderate
- BCM cornering light output failure Low
Step-by-Step Diagnostic Procedure
-
Inspect cornering light bulb
-
Check relay or driver
-
Test voltage during left turn
-
Scan BCM for cornering codes
Frequently Asked Questions
What is a cornering light?
A supplemental light that illuminates the side of the road in the direction of your turn.
Do all vehicles have them?
No, typically on mid-range and luxury vehicles.
Can I add cornering lights?
Aftermarket kits are available.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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