B2290 Code - Occupant Classification System Fault
Quick Answer
The Occupant Classification System Module (OCSM) monitors the pressure sensor and circuity for faults. Common causes include Faulty Occupant Classification System Module (OCSM), Occupant Classification System Module (OCSM) harness is open or shorted, Occupant Classification System Module (OCSM) circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- B2290 indicates Occupant Classification System Fault.
- Common causes
- Common causes include Faulty Occupant Classification System Module (OCSM), Occupant Classification System Module (OCSM) harness is open or shorted, Occupant Classification System Module (OCSM) circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code B2290 Description
What are the Possible Causes of the DTC B2290?
- Faulty Occupant Classification System Module (OCSM)
- Occupant Classification System Module (OCSM) harness is open or shorted
- Occupant Classification System Module (OCSM) circuit poor electrical connection
How to Fix the DTC B2290?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the B2290 code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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Information for Specific Makes
- B2290 Ford — Occupant Classification System Fault
- B2290 Jaguar — Occupant Classification System Fault
- B2290 Lincoln — Occupant Classification System Fault
- B2290 Mazda — Occupant Classification System Fault
- B2290 Mercury — Occupant Classification System Fault
Precautions for SRS “AIR BAG” and “SEAT BELT PRE-TENSIONER” Service
- Never probe the electrical connectors on air bag, side air curtain modules or seat belts.
- Never disassemble or tamper with safety belt buckle/retractor pretensioners, adaptive load limiting retractors, safety belt inflators, or probe the electrical connectors.
- Do not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
- Before servicing the SRS, turn ignition switch OFF, disconnect both battery cables and wait at least 3 minutes. For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes have passed.
Failure to follow this instruction may result in the accidental deployment of these modules, which increases the risk of serious personal injury or death.
Frequently Asked Questions about B2290 Code
1. What does OBDII code B2290 mean?
B2290 indicates a fault in the Occupant Classification System (OCS), which is responsible for detecting the size, weight, and position of the occupant in the passenger seat to control airbag deployment.
2. What are the common symptoms of code B2290?
Symptoms may include the airbag warning light staying illuminated, improper airbag functionality, and possible issues with seat weight sensors.
3. What causes OBDII code B2290?
Common causes include faulty seat weight sensors, damaged wiring or connectors in the OCS, software calibration issues, or a malfunctioning OCS control module.
4. Can I drive with code B2290 active?
Driving with this code may be unsafe because the airbag system might not function properly in the event of an accident. It’s best to address the issue as soon as possible.
5. How is code B2290 diagnosed?
A technician will typically use a scan tool to confirm the code, inspect the OCS wiring and connectors, test the seat weight sensors, and verify the system's calibration.
6. What repairs can fix code B2290?
Repairs may include replacing faulty seat weight sensors, repairing damaged wiring or connectors, recalibrating the OCS, or replacing the OCS control module.
7. How much does it cost to fix code B2290?
Repair costs can vary widely but may range from $150 to $1,000 depending on whether the issue is with the sensors, wiring, or control module.
8. Can I clear B2290 without fixing the issue?
Clearing the code without addressing the underlying problem may temporarily turn off the warning light, but the fault will likely return.
9. Does B2290 affect airbag deployment?
Yes, this code can impact how or if the passenger airbag deploys, as the OCS determines deployment based on seat occupancy and weight.
10. Is B2290 a manufacturer-specific code?
No, B2290 is a generic OBDII code, but its exact meaning and diagnosis steps may vary slightly between manufacturers. Always consult your vehicle’s service manual.
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