← Back to Search Severity: Medium

B0604

B0604: Seat Switch Circuit Malfunction

Fix Cost
$100 - $500
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
❌ No
Pro recommended
Category
Body
System

📖 What Does B0604 Mean?

The B0604 code indicates a malfunction in the seat switch circuit, which controls the seat's position, lumbar support, and recline functions.
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Symptoms

  • Seat position not functioning correctly
  • lumbar support not adjusting
  • recline function not working
  • unusual seat behavior
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Common Causes

  • Faulty seat switch
  • wiring issue
  • seat motor malfunction
  • faulty seat control module
Fix Guide
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Possible Solutions

1. Disconnect the battery to reset the system. 2. Check and clean the seat switch contacts. 3. Replace the faulty seat switch. 4. Check and repair any wiring issues. 5. Replace the seat motor if necessary. 6. Update the seat control module's software if necessary.

Common Questions About B0604

Can I drive with code B0604?

You can drive for a short time, but should address code B0604 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0604?

The estimated repair cost for code B0604 is between $100 and $500. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0604 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.

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Need a Pro?

Complex codes like B0604 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 B0604

💡 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