B0063 low

Right Front Side Marker Light Circuit Open

The B0063 code means the vehicle's onboard diagnostic system has detected: Right Front Side Marker Light Circuit Open. This is a low severity code.

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Keep driving?
Yes, but fix soon
DIY difficulty
easy
Estimated cost
$5 - $120 (parts and labor)
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Common Symptoms

  • Right front side marker light not illuminating
  • Bulb check warning on dashboard
  • Reduced side visibility at night
  • Failed vehicle inspection

Probable Causes (Ranked by Likelihood)

  • Burned out side marker bulb Very High
  • Corroded bulb socket or connector High
  • Broken wiring to right front marker lamp Moderate
  • Body control module output fault Low

Step-by-Step Diagnostic Procedure

  1. Inspect right front side marker bulb

  2. Check bulb socket for corrosion

  3. Measure voltage at marker light connector

  4. Trace wiring from BCM to right front marker

Frequently Asked Questions

Is a side marker the same as a turn signal?

No, though many vehicles share a housing. The side marker is a steady amber light for side visibility.

How do I find my bulb number?

Check your owner manual. Common types are 194, 168, and 2825 or their LED equivalents.

Can water damage cause this code?

Yes, water intrusion corrodes the socket and bulb contacts, creating an open circuit.

Sources

This page is built from documented references. Verify against your own service info before repair work.

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