← Back to Search Severity: Medium

B0657

B0657: Climate Control Fan Motor Fault

Fix Cost
$100 - $300
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0657 Mean?

This code indicates a fault in the climate control fan motor circuit, which may cause the fan to malfunction or not turn on.
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Symptoms

  • Fan not blowing
  • uneven airflow
  • inconsistent temperature control
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Common Causes

  • Faulty fan motor
  • faulty fan motor resistor
  • wiring issues
  • blown fuse
Fix Guide
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Possible Solutions

1. Check and replace the fan motor if faulty. 2. Check and replace the fan motor resistor if faulty. 3. Inspect wiring for damage or corrosion and repair as needed. 4. Check and replace the fuse if blown.

Common Questions About B0657

Can I drive with code B0657?

You can drive for a short time, but should address code B0657 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0657?

The estimated repair cost for code B0657 is between $100 and $300. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0657 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 Wire tester Torx screwdriver Pliers
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Need a Pro?

Complex codes like B0657 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 B0657

💡 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