← View Generic B3747 Guide Severity: Medium

🚗 Vehicle-Specific Guide

This guide is customized for your 2014 Nissan SENTRA

B3747: B3747: Power Window Regulator Malfunction

on 2014 Nissan SENTRA

Fix Cost

$150 - $300

Parts & Labor

Difficulty

3/5

1-2 hours

DIY Possible?

✅ Yes

Save money

Your Vehicle

2014 Nissan

SENTRA

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Important for 2014 Nissan SENTRA Owners

Before starting repairs, verify which engine your 2014 Nissan SENTRA has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B3747 Mean on 2014 Nissan SENTRA?

The power window regulator has failed, preventing the window from moving up or down properly.

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Symptoms

• Window stuck
• won't move
• or moves erratically
• may have a grinding or screeching noise.

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Common Causes

• Faulty power window regulator
• worn or damaged window tracks
• faulty window switch.

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How to Fix B3747 on 2014 Nissan SENTRA

1. Disconnect battery to prevent electrical shock. 2. Remove door panel and trim to access window regulator. 3. Disconnect regulator electrical connector. 4. Remove regulator mounting screws. 5. Remove regulator and inspect for damage. 6. Replace regulator if damaged. 7. Reassemble in reverse order.

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Parts for 2014 Nissan SENTRA

Power window regulator Shop ↗ Window regulator mounting screws Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B3747

B3745 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