← Back to Search Severity: Medium

B0931

B0931: Power Window Regulator Malfunction

Fix Cost
$150 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0931 Mean?

The B0931 code indicates a malfunction in the power window regulator, which controls the movement of the window up and down. This code is often accompanied by symptoms such as slow or stuck windows, and may be caused by a faulty regulator, motor, or wiring issue.
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Symptoms

  • Slow or stuck windows
  • window not moving at all
  • unusual noises or vibrations when operating the window
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Common Causes

  • Faulty power window regulator
  • faulty window motor
  • wiring issue
  • faulty window switch
Fix Guide
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Possible Solutions

1. Disconnect the battery to prevent any accidental window movement. 2. Remove the door panel to access the power window regulator. 3. Disconnect the electrical connector from the regulator. 4. Remove the regulator from the door and replace it with a new one. 5. Reconnect the electrical connector and reassemble the door panel.

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Common Questions About B0931

Q

Can I drive with code B0931?

A

You can drive for a short time, but should address code B0931 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B0931?

A

The estimated repair cost for code B0931 is between $150 and $300. 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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Related Diagnostic Codes

Other codes that may appear with B0931

💡 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