Daytime Running Light Circuit Right Malfunction
What does B0052 mean?
The B0052 code means the vehicle's onboard diagnostic system has detected: Daytime Running Light Circuit Right Malfunction. This is a low severity code.
Common Symptoms
- Right daytime running light not illuminating
- DRL warning indicator on dash
- Uneven front lighting appearance
- Right DRL intermittent or dim
- Vehicle less visible in daytime from front
Probable Causes (Ranked by Likelihood)
- Burned out right DRL bulb or LED element Very High
- Corroded right DRL connector High
- DRL control module fault Moderate
- Open wire in right DRL circuit Low
Step-by-Step Diagnostic Procedure
-
Check right DRL bulb or LED for failure
-
Inspect DRL connector for corrosion or damage
-
Test voltage at right DRL circuit
-
Check DRL module output for right side
-
Trace wiring from module to right headlight assembly
Frequently Asked Questions
Are DRLs the same as headlights?
No. DRLs are a separate lighting circuit that provides reduced intensity illumination during the day. They are not bright enough for nighttime driving and do not activate tail lights.
Can I disable my DRLs?
While some vehicles allow DRL deactivation through the settings menu or dealer programming, disabling them may violate regulations in certain states and countries where they are mandated.
Why is one DRL dimmer than the other?
Uneven brightness can be caused by a partially failed LED element, a dirty lens, or a high-resistance connection. If the DRL uses a halogen bulb, the bulb may be nearing end of life.