Code result
B0990
Body Control Module Internal Fault
Moderate severity
What it means
The body control module (BCM) has detected an internal fault and may need to be replaced.
Is it safe to drive?
Use caution
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical.
Most likely causes
BCM internal hardware fault
highOne of the most commonly reported causes for this code — check this first.
Voltage spike damage from jump-start
mediumA plausible cause — test and verify before replacing parts.
Water intrusion at module
mediumA plausible cause — test and verify before replacing parts.
Related help
Get the full diagnosis
Add your vehicle and see step-by-step repair help, recalls, and TSBs in Wrenchify.
Diagnose B0990 freeNo credit card required