Ambient Interior Lighting Circuit Malfunction
What does B0057 mean?
The B0057 code means the vehicle's onboard diagnostic system has detected: Ambient Interior Lighting Circuit Malfunction. This is a low severity code.
Common Symptoms
- Ambient lighting in cabin not working
- Interior accent lights stuck on one color
- Ambient light color selection not responding
- Footwell or door panel lighting not illuminating
- Ambient lighting flickers or turns off randomly
Probable Causes (Ranked by Likelihood)
- Failed ambient light LED strip or module Very High
- Faulty ambient lighting control module High
- Loose connector at ambient light strip Moderate
- Body control module ambient lighting output failure Low
Step-by-Step Diagnostic Procedure
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Check ambient light settings in vehicle infotainment system
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Inspect visible LED strip connections at door panels and footwell
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Scan body control module for ambient light DTCs
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Test power supply at ambient light modules
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Check communication between infotainment and lighting modules
Frequently Asked Questions
What is ambient interior lighting?
Ambient lighting uses LED strips or modules to provide soft accent illumination inside the cabin, typically in footwells, door panels, and the dashboard area. It is primarily an aesthetic feature.
Can ambient lighting be added aftermarket?
Yes. Aftermarket LED strip kits are widely available and can be installed with basic tools. However, aftermarket kits may not integrate with the factory lighting controls.
Will this affect any safety features?
No. Ambient interior lighting is purely cosmetic and does not affect any safety systems, driving controls, or essential vehicle functions.