Diagnosis of the occupant classification system (OCS)
This code indicates a fault in the occupant classification system's operation.
Heads up: this code wasn't in our hand-written library yet, so DiagCoach AI built this page on the fly. Double-check critical specs against service info before condemning parts.
What it means (plain English)
The car's system is unable to correctly identify if a passenger is seated properly, which can affect airbag deployment during a crash.
What the computer is actually seeing
The occupant classification system monitors the weight and position of the passenger seat to determine if it is safe to deploy the passenger airbag.
What a healthy reading looks like
The system expects the resistance from the weight sensor to be between 50 to 150 ohms for proper operation.
Guided diagnostic — the DiagCoach way
Don't just throw parts at it. Walk through these in order — each step tells you whether to keep going or stop and fix what you found.
- 1Check for any visual damage to seat connectors and wiring harnesses related to the occupant classification system.
- 2Using a multimeter, measure the resistance from the weight sensor under the seat—expect between 50 to 150 ohms.
- 3Clear the fault codes and test drive the vehicle again; recheck for the B2495 code.
- 4If the code comes back, check the airbag module for faults or replace the occupant weight sensor.
Common causes
- Faulty occupant weight sensor
- Wiring issues in the seat sensor circuit
- Bad airbag module
- Loose or corroded connectors
Typical repair cost
$$
Related codes
Frequently asked questions
Is it safe to drive with this code active?
It's moderately safe, but fix it soon as it affects airbag deployment.
Why does this code come back after clearing?
Commonly due to a persistent issue with the weight sensor or wiring faults.
Will this affect my insurance?
If airbags are disabled, it could impact coverage in case of an accident.
Working a real vehicle right now?
Let DiagCoach walk you through it live with your specific symptoms, vehicle, and what you've already checked.
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