Occupant Classification System Sensor Performance
The system is not detecting the occupant classification sensor properly.
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 has a sensor that determines if there's a person in the passenger seat and if they're heavy enough to need the airbag. If this sensor is acting up, it might not know if the seat is occupied or not, which could make the airbag not work properly.
What the computer is actually seeing
The computer sees an abnormal signal or no signal from the occupant classification sensor, which should typically measure resistance within a specified range when weight is applied.
What a healthy reading looks like
Resistance should be between 0-2000 ohms with a properly functioning sensor detecting an adult.
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 the wiring and connectors for the occupant classification sensor. Look for corrosion, breaks, or loose connections. If found, repair or replace as necessary. Decision: If wiring and connectors are damaged, repair them and check for codes again.
- 2With a multimeter, test the occupant classification sensor resistance. Disconnect the sensor and measure resistance across its terminals. Expected is between 0-2000 ohms with a proper load. Decision: If resistance is outside this range, replace the sensor.
- 3Inspect the airbag control module for any faults or stored codes. Ensure it communicates properly with the sensor. Decision: If the control module has fault codes unrelated to the sensor, consider testing/replacing the control module.
Common causes
- Faulty occupant classification sensor
- Damaged wiring or connectors
- Faulty airbag control module
- Incorrectly calibrated sensor unit
Typical repair cost
$$$
Related codes
Frequently asked questions
Is it safe to drive with this code present?
It's not recommended to drive without resolving this code as the airbag may not deploy in an accident.
Will this fault come back after clearing?
If the underlying issue is not fixed, the fault is likely to return after clearing.
Why does this code pair with other codes?
Other codes often indicate related issues within the airbag system or occupant detection sensors.
Working a real vehicle right now?
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