OBD-II code · Body
B0990 Body Control Module Internal Fault
The body control module (BCM) has detected an internal fault and may need to be replaced.
Is it safe to drive with B0990?
Usually safe for short trips, but don’t ignore it: the underlying fault can get more expensive over time.
Common causes
- Most likelyBCM internal hardware fault
- PossibleVoltage spike damage from jump-start
- PossibleWater intrusion at module
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Hard
- DIY friendly
- Best left to a mechanic
- Typical labour
- 1.5–5 h
- Emissions test
- Usually unaffected
- Parts involved
- Body Control Module
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.