← Back to Search Severity: Medium

B0051

B0051: Power Window Relay Circuit Malfunction

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0051 Mean?

The B0051 code indicates a problem with the power window relay circuit, which controls the movement of the windows. This can cause windows to malfunction or not function at all.
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Symptoms

  • Windows won't roll up or down
  • or do so intermittently
  • may be stuck in a particular position
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Common Causes

  • Faulty power window relay
  • wiring issues
  • blown fuse
  • or a problem with the window switch
Fix Guide
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Possible Solutions

1. Check the fuse box for a blown fuse and replace it if necessary. 2. Inspect the wiring for damage or corrosion and repair/replace as needed. 3. Test the power window relay circuit with a multimeter to identify any issues. 4. Replace the power window relay if faulty.

Required Parts

Tools

Multimeter Wire tester Pliers
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Need a Pro?

Complex codes like B0051 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 B0051

💡 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