← View Generic B0381 Guide Severity: Medium
🚗 Vehicle-Specific Guide

This guide is customized for your 2019 Ford F150 PICKUP

B0381: B0381: Turn Signal Lamp Malfunction

on 2019 Ford F150 PICKUP

Fix Cost
$50 - $150
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2019 Ford
F150 PICKUP
⚠️

Important for 2019 Ford F150 PICKUP Owners

Before starting repairs, verify which engine your 2019 Ford F150 PICKUP has. Check your VIN or engine code to ensure you order the correct parts.

📖 What Does B0381 Mean on 2019 Ford F150 PICKUP?

The B0381 code indicates a malfunction in the turn signal lamp circuit, which can cause the turn signals to malfunction or not function at all.
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Symptoms

  • • Turn signals not functioning
  • • flashing
  • • or staying on continuously
  • • warning lights on the dashboard.
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Common Causes

  • • Faulty turn signal lamp
  • • wiring issue
  • • faulty turn signal switch
  • • or a blown fuse.
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How to Fix B0381 on 2019 Ford F150 PICKUP

1. Check the turn signal lamp for any signs of damage or corrosion. Replace if necessary. 2. Inspect the wiring and connectors for any signs of damage or corrosion. Repair or replace as needed. 3. Check the turn signal switch for any signs of wear or damage. Replace if necessary. 4. Check the fuse box for a blown fuse. Replace the fuse if necessary.

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Parts for 2019 Ford F150 PICKUP

Turn signal lamp Shop ↗ Wiring harness Shop ↗ Turn signal switch Shop ↗ Fuse Shop ↗

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Related Diagnostic Codes

Other codes that may appear with B0381

B0379 Sequential Code

B0379: Power Window Relay Circuit Malfunction

Medium
B0380 Sequential Code

B0380: Seat Switch Circuit Malfunction

Medium
B0382 Sequential Code

B0382: Immobilizer System Malfunction

Medium
B0383 Sequential Code

B0383: 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