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B1797

B1797: Exterior Lighting Malfunction

Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
Moderate
1-2 hours
DIY Possible?
✅ Yes
Save money
Category
Body
System

📖 What Does B1797 Mean?

The B1797 code indicates a malfunction in the exterior lighting system, such as the headlights, taillights, or turn signals.
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Symptoms

  • Dim or inoperative exterior lights
  • warning lights on the dashboard
  • or unusual behavior of the lighting system.
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Common Causes

  • Faulty headlight or taillight bulbs
  • wiring issues
  • or a malfunctioning lighting control module.
Fix Guide
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Possible Solutions

Replace the faulty bulb(s), inspect and repair or replace wiring as needed, and update the lighting control module if necessary.

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Common Questions About B1797

Q

Can I drive with code B1797?

A

You can drive for a short time, but should address code B1797 soon to avoid worsening the problem or failing an emissions test.

Q

How much does it cost to fix B1797?

A

The estimated repair cost for code B1797 is between $50 and $200. This includes parts and labor for most makes and models.

Q

Is this code easy to fix myself?

A

This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.

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Complex codes like B1797 can be tricky. Don't risk it if you're unsure.

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Related Diagnostic Codes

Other codes that may appear with B1797

💡 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