← View Generic B3189 Guide
Severity: Medium
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Vehicle-Specific Guide
This guide is customized for your 2019 Ford F150 PICKUP
B3189: B3189: Turn Signal Lamp Malfunction
on 2019 Ford F150 PICKUP
Fix Cost
$50 - $200
Parts & Labor
Difficulty
3/5
1-2 hours
DIY Possible?
✅ Yes
Save money
Your Vehicle
2019 Ford
F150 PICKUP
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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 B3189 Mean on 2019 Ford F150 PICKUP?
The B3189 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 working
- • flashing
- • or staying on continuously
- • warning lights on dashboard
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Common Causes
- • Faulty turn signal switch
- • corroded or damaged wiring
- • blown fuse
- • faulty turn signal lamp
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How to Fix B3189 on 2019 Ford F150 PICKUP
1. Check and replace the turn signal switch if faulty. 2. Inspect and clean or replace corroded wiring. 3. Check and replace the blown fuse. 4. Replace the turn signal lamp if faulty.
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Need Maintenance Info for Your F150 PICKUP?
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Related Diagnostic Codes
Other codes that may appear with B3189
B3187
Sequential Code
B3187: Power Window Relay Circuit Malfunction
Medium
B3188
Sequential Code
B3188: Seat Position Sensor Circuit Malfunction
Medium
B3190
Sequential Code
B3190: Immobilizer System Malfunction
High
B3191
Sequential Code
B3191: 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