OBD2 code B0904: Manufacturer-specific code
B codes cover body systems; the precise meaning is manufacturer-specific.
Detected Root Component
Body Component
Observed Symptoms
- Warning lights on instrument cluster
- Body or comfort function not working
Possible Causes
- Faulty body control module or related component
- Blown fuse
- Damaged wiring or connector
- Corroded connector
Tools Required
Interactive Diagnostic
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Diagnostic Result
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Parts likely to be the cause (Boîtier fusibles / BSI)
Boîtier fusibles / BSI
Photo d'illustration : Boîtier fusibles / BSI
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Frequently asked questions about code B0904
What does code B0904 mean? ▾
OBD2 code B0904: Manufacturer-specific code. B codes cover body systems; the precise meaning is manufacturer-specific.
What are the symptoms of code B0904? ▾
Code B0904 may cause: Warning lights on instrument cluster, Body or comfort function not working. The intensity of these symptoms varies depending on the vehicle and driving conditions.
What causes code B0904? ▾
The most common causes of code B0904 are: Faulty body control module or related component, Blown fuse, Damaged wiring or connector, Corroded connector. A proper OBD2 diagnostic will pinpoint the exact cause.
Is it serious to drive with code B0904? ▾
Code B0904 is generally benign (Info). It does not prevent driving, but a check helps rule out related issues.
How do I fix code B0904? ▾
Start by reading the code with an OBD2 scanner, then follow the interactive decision tree on this page. Priority causes to check: Faulty body control module or related component, Blown fuse, Damaged wiring or connector, Corroded connector. Difficulty: moderate · Estimated time: 45min.