B0081: Passenger Seat Position Sensor Circuit Malfunction
Can you still drive? Yes, but the passenger airbag may not deploy with the correct force. The airbag could over-deploy for a close-seated passenger or under-deploy for one seated farther back.
What Does B0081 Mean?
Code B0081 indicates that the SRS or body control module has detected a fault in the passenger seat position sensor circuit. This sensor determines how far forward or rearward the passenger seat is positioned and adjusts airbag deployment force accordingly. A faulty sensor means the airbag system cannot optimize deployment for the passenger.
Need to read your codes?
An OBD-II scanner lets you read and clear diagnostic trouble codes from your vehicle's computer. Most scanners work with any car made after 1996.
Browse OBD-II Scanners on AmazonCommon Causes
- Damaged seat position sensor under passenger seat
- Wiring harness pinched or cut under seat rails
- Corroded connector under passenger seat
- Sensor displaced by objects stored under the seat
- Water spill damaging under-seat electronics
Symptoms
- Airbag warning light on
- Passenger airbag off indicator may illuminate unexpectedly
- Seat adjustment may still work normally despite the code
- SRS fault code stored
Diagnostic Steps
- 1Scan SRS module for all related codes
- 2Inspect wiring harness under the passenger seat for damage
- 3Check the seat position sensor connector for corrosion
- 4Measure sensor output while manually moving the seat
- 5Look for objects lodged under the seat interfering with the sensor
- 6Clear codes and verify operation through full seat travel range
Recommended Parts & Tools
seat position sensor
wiring harness repair kit
electrical connector cleaner
Estimated Repair Cost
| Type | Estimated Cost |
|---|---|
| Total Repair Cost Range | $100 - $800 |
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Chat with AI About B0081Commonly Affected Vehicles
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Frequently Asked Questions
What does the seat position sensor do for the airbag?
It tells the airbag system how far the passenger is from the dashboard so the airbag deploys with appropriate force. A close-seated passenger needs less force than one seated far back.
Can something under the seat cause B0081?
Yes, objects stored under the passenger seat can damage or displace the sensor and its wiring. Always check under the seat first.
Community Fix Reports
Community reports are user-submitted and not verified by Auto AI Buddy. Results may vary.
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