Left Daytime Running Light Circuit Malfunction
The B0068 code means the vehicle's onboard diagnostic system has detected: Left Daytime Running Light Circuit Malfunction. This is a moderate severity code.
- Keep driving?
- Yes, but fix soon
- DIY difficulty
- easy
- Estimated cost
- $15 - $250 (parts and labor)
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Common Symptoms
- Left DRL not illuminating
- DRL warning on dashboard
- Asymmetric front lighting during day
- Reduced daytime visibility
Probable Causes (Ranked by Likelihood)
- Burned out DRL bulb or LED module Very High
- Failed DRL control relay High
- Corroded DRL wiring connector Moderate
- BCM DRL output failure Low
Step-by-Step Diagnostic Procedure
-
Inspect left DRL bulb or LED
-
Check DRL relay and swap with known good
-
Test voltage at left DRL connector
-
Scan BCM for DRL codes
Frequently Asked Questions
Are DRLs required by law?
Canada requires them; the US does not mandate them.
Can I use headlights instead?
Yes, but they consume more power and may cause more glare.
Why is my DRL dimmer than the other?
Poor connection, partially failed LED, or voltage drop.
Sources
This page is built from documented references. Verify against your own service info before repair work.
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