← Back to Search Severity: Medium

B0573

B0573: Headlight Dimmer Switch Malfunction

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System

📖 What Does B0573 Mean?

The B0573 code indicates a problem with the headlight dimmer switch, which is responsible for adjusting the headlight beam intensity in response to the vehicle's speed.
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Symptoms

  • Dim or inoperable headlights
  • intermittent headlight operation
  • or a dashboard warning light.
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Common Causes

  • Faulty headlight dimmer switch
  • wiring issues
  • or a malfunctioning headlight module.
Fix Guide
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Possible Solutions

1. Disconnect the battery to reset the system. 2. Check and clean the headlight dimmer switch and surrounding wiring. 3. Replace the headlight dimmer switch if faulty. 4. Inspect and repair any damaged wiring. 5. Update the headlight module software if necessary.

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Common Questions About B0573

Q

Can I drive with code B0573?

A

You can drive for a short time, but should address code B0573 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0573?

A

The estimated repair cost for code B0573 is between $50 and $200. 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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Need a Pro?

Complex codes like B0573 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B0573

💡 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