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B0301

B0301: Body System Code - Low Beam Headlight Relay Circuit Malfunction

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0301 Mean?

The B0301 code indicates a malfunction in the low beam headlight relay circuit, which can cause the low beam headlights to malfunction or not function at all.
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Symptoms

  • Headlights not functioning
  • dim or flickering lights
  • difficulty seeing at night
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Common Causes

  • Faulty low beam headlight relay
  • wiring issues
  • blown fuse
  • headlight switch malfunction
Fix Guide
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Possible Solutions

1. Check the headlight relay and replace it if faulty. 2. Inspect and repair any wiring issues. 3. Check and replace the fuse if blown. 4. Test the headlight switch to ensure it's functioning properly.

Common Questions About B0301

Can I drive with code B0301?

You can drive for a short time, but should address code B0301 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0301?

The estimated repair cost for code B0301 is between $50 and $150. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0301 easy to fix myself?

This repair is considered moderate. It may require specialized tools or significant disassembly. If you are not an experienced mechanic, professional help is recommended.

Required Parts

Tools

Multimeter Wire tester Torx screwdriver
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Need a Pro?

Complex codes like B0301 can be tricky. Don't risk it if you're unsure.

Quick Stats

Severity Medium
DIY Friendly No
Est. Time 1-2 hours
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Related Diagnostic Codes

Other codes that may appear with B0301

💡 Why These Codes Are Related:

  • Similar Issues: Same root cause or component failure
  • Related Problems: Often occur together due to system interactions
  • Sequential Codes: Progressive failure stages or multiple sensors
  • Same System: Components within the same automotive system