← View Generic B0397 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2020 Chevrolet SILVERADO 1500 PICKUP

B0397: B0397: Malfunction of Front Fog Light

on 2020 Chevrolet SILVERADO 1500 PICKUP

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2020 Chevrolet
SILVERADO 1500 PICKUP
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Important for 2020 Chevrolet SILVERADO 1500 PICKUP Owners

Before starting repairs, verify which engine your 2020 Chevrolet SILVERADO 1500 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0397 Mean on 2020 Chevrolet SILVERADO 1500 PICKUP?

The B0397 code indicates a problem with the front fog light circuit, possibly due to a faulty fog light switch, wiring issue, or a problem with the fog light itself.
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Symptoms

  • • Fog light does not turn on
  • • or turns on intermittently
  • • and may also trigger the 'check engine' light on the dashboard.
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Common Causes

  • • Faulty fog light switch
  • • worn-out or damaged wiring
  • • faulty fog light bulb
  • • or a problem with the fog light relay.
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How to Fix B0397 on 2020 Chevrolet SILVERADO 1500 PICKUP

1. Check the fog light switch for any signs of wear or damage. Clean or replace it if necessary. 2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as needed. 3. Check the fog light bulb and replace it if it's worn out or damaged. 4. Check the fog light relay and replace it if it's faulty.

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Parts for 2020 Chevrolet SILVERADO 1500 PICKUP

Fog light switch Shop ↗ Wiring harness Shop ↗ Fog light bulb Shop ↗ Fog light relay Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0397

B0395 Sequential Code

B0395: Power Window Relay Circuit Malfunction

Medium
B0396 Sequential Code

B0396: Seat Position Sensor Malfunction

Medium
B0398 Sequential Code

B0398: Body System Security Malfunction

Medium
B0399 Sequential Code

B0399: Audio System Malfunction

Medium

💡 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