← Back to Search Severity: Medium

B0117

B0117: Low Beam Headlight Relay Circuit Malfunction

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System

📖 What Does B0117 Mean?

The B0117 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

  • Dim or inoperative low beam headlights
  • blinking or flickering headlights
  • or no headlights at all
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Common Causes

  • Faulty headlight relay
  • corroded or loose connections
  • blown fuse
  • or wiring damage
Fix Guide
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Possible Solutions

1. Check and replace the headlight relay if faulty. 2. Inspect and clean or replace corroded or loose connections. 3. Check and replace the blown fuse. 4. Inspect and repair wiring damage.

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Common Questions About B0117

Q

Can I drive with code B0117?

A

You can drive for a short time, but should address code B0117 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0117?

A

The estimated repair cost for code B0117 is between $50 and $150. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Complex codes like B0117 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B0117

💡 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