B0099
Occupant Detection Module Internal Fault
The occupant detection module reports an internal fault detected by self-test. The module typically processes seat sensor data and reports occupancy status to the SRS module.
The occupant detection module reports an internal fault detected by self-test. The module typically processes seat sensor data and reports occupancy status to the SRS module.
Common causes
- high
Occupant detection module internal fault
One of the most commonly reported causes for this code — check this first.
Typical part cost: $330-1650
- medium
Power supply or ground fault to module
A plausible cause — test and verify before replacing parts.
Typical part cost: $330-1650
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First things to check
- 1Confirm the code with a scan tool and check for additional related codes.
- 2Inspect the relevant sensors, wiring, and connectors for damage or corrosion.
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Related codes
See related trouble codes
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Frequently asked questions
What does B0099 mean?
B0099 means "Occupant Detection Module Internal Fault". It is a generic OBD-II code that points to a fault in the body.
What are the most common causes of B0099?
occupant detection module internal fault; power supply or ground fault to module — these are the most commonly reported causes. Verify with a proper diagnosis before replacing parts, or use the Wrenchify app for a vehicle-specific diagnosis.
Can I keep driving with this code?
The vehicle is usually drivable for short distances, but the problem can worsen or affect emissions. Diagnose and repair as soon as practical. Use the Wrenchify app for a full diagnosis specific to your vehicle.
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