Body
Definition only
B0990: Body Control Module Internal Fault
Standardized SAE J2012 code · B09xx codes
What does B0990 mean?
The body control module (BCM) has detected an internal fault and may need to be replaced.
The code tells you which monitor failed, not which part is broken. Test before replacing parts.
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Common causes
- High BCM internal hardware fault
- Medium Voltage spike damage from jump-start
- Medium Water intrusion at module
Likelihood is a general estimate across vehicles; your make and model may differ.
Add your car to see reports of B0990 on the same make and model first.
B0990 in the community
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