← Back to Search Severity: Medium

B0165

B0165: Turn Signal or Hazard Warning Light Malfunction

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

📖 What Does B0165 Mean?

This code indicates a problem with the turn signal or hazard warning light circuit, preventing proper function or illumination.
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Symptoms

  • Turn signals not functioning
  • hazard warning lights not flashing
  • or warning lights remaining on after turning them off.
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Common Causes

  • Faulty turn signal switch
  • bad bulb
  • wiring issue
  • or a problem with the turn signal module.
Fix Guide
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Possible Solutions

1. Check and replace the turn signal switch if faulty. 2. Inspect and replace any blown bulbs. 3. Check wiring for damage or corrosion and repair as needed. 4. Test the turn signal module and replace if faulty.

Common Questions About B0165

Can I drive with code B0165?

You can drive for a short time, but should address code B0165 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0165?

The estimated repair cost for code B0165 is between $50 and $200. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0165 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 Torx screwdriver Pliers
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Need a Pro?

Complex codes like B0165 can be tricky. Don't risk it if you're unsure.

Quick Stats

Severity Medium
DIY Friendly Yes
Est. Time 1-2 hours
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Related Diagnostic Codes

Other codes that may appear with B0165

💡 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