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B0403

B0403: Power Window Circuit Malfunction

Fix Cost

$100 - $500

Parts & Labor

Difficulty

3/5

Moderate

1-2 hours

DIY Possible?

✅ Yes

Save money

📖 What Does B0403 Mean?

The B0403 code indicates a malfunction in the power window circuit, which can cause windows to malfunction or not function at all.

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Symptoms

• Windows not moving
• stuck or slow
• intermittent window operation

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Common Causes

• Faulty window regulator
• damaged or corroded wiring
• faulty window switch
• blown fuse

Fix Guide

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Possible Solutions

1. Check and replace blown fuse. 2. Inspect and clean corroded wiring. 3. Replace faulty window regulator. 4. Replace faulty window switch.

❓ Common Questions About B0403

Can I drive with code B0403?

You can drive for a short time, but should address code B0403 soon to avoid worsening the problem or failing an emissions test.

How much does it cost to fix code B0403?

The estimated repair cost for code B0403 is between $100 and $500. This includes parts and labor. Prices may vary based on your vehicle's make and model.

Is code B0403 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

Socket set Torx screwdriver Multimeter

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Need a Pro?

Complex codes like B0403 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 B0403

B0401 Sequential Code

💡 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