B1477
B1477: Body Control Module (BCM) Lighting Circuit Malfunction
📖 What Does B1477 Mean?
Symptoms
- • Dim or inoperative exterior lights
- • flickering lights
- • or lights that do not turn off when the ignition is turned off
Common Causes
- • Faulty BCM
- • wiring harness damage
- • blown fuse
- • or a malfunctioning lighting component
Possible Solutions
1. Check the BCM for any fault codes and clear them. 2. Inspect the wiring harness for damage and repair or replace as needed. 3. Check the fuses and replace any blown ones. 4. Test the lighting components and replace any faulty ones.
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❓ Common Questions About B1477
Can I drive with code B1477?
You can drive for a short time, but should address code B1477 soon to avoid worsening the problem or failing an emissions test.
How much does it cost to fix B1477?
The estimated repair cost for code B1477 is between $100 and $500. 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
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Other codes that may appear with B1477
B1475: Power Window Regulator Malfunction
B1476: Seat Switch Circuit Malfunction
B1478: Immobilizer System Malfunction
B1479: 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