B1381
B1381: Body Control Module (BCM) - Low Beam Headlight Relay Circuit Malfunction
📖 What Does B1381 Mean?
Symptoms
- • Dim or inoperative low beam headlights
- • intermittent or complete loss of low beam headlight function
Common Causes
- • Faulty low beam headlight relay
- • corrosion or damage to the relay circuit
- • wiring issues
- • or a malfunctioning BCM
Possible Solutions
1. Check the relay circuit for corrosion or damage and clean or replace as necessary. 2. Inspect the wiring for any signs of damage or wear and tear. 3. Test the low beam headlight relay to ensure it is functioning properly. 4. If the issue persists, replace the BCM.
Fixing this on your car?
Get a vehicle-specific repair guide with exact parts, oil specs, and torque settings for your make and model.
🚙 Get Vehicle-Specific Fix Guide
Select your vehicle to see a customized repair guide with exact parts and specifications:
❓ Common Questions About B1381
Can I drive with code B1381?
You can drive for a short time, but should address code B1381 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B1381?
The estimated repair cost for code B1381 is between $50 and $200. This includes parts and labor for most makes and models.
Is this code easy to fix myself?
This repair is considered moderate. It may require specialized tools or significant disassembly. Professional help is recommended if you aren't an experienced DIYer.
Required Parts
Recommended Tools
Need a Pro?
Complex codes like B1381 can be tricky. Don't risk it if you're unsure.
Recommended Tool
Professional OBD2 Scanner
Read & clear codes, view live data, and reset service lights yourself.
View Best Sellers ↗Related Diagnostic Codes
Other codes that may appear with B1381
B1379: Power Window Circuit Malfunction
B1380: Seat Switch Circuit Malfunction
B1382: Body System Security Malfunction
B1383: Audio System Malfunction
💡 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