OBD-II Body Error Code B0143: How to Fix It

Q: Can I drive with B0143 error code?

While the vehicle may run normally, you should not drive with this error as it indicates the passenger airbag system may not function properly in a crash. Get it repaired immediately for safety.

Q: How much does it cost to fix B0143 error?

Professional repair costs typically range from $200-800 depending on whether it's a wiring issue, connector problem, or requires sensor replacement. DIY repair costs $50-300 for parts.

Q: What causes passenger weight sensor to fail?

Common causes include spilled liquids damaging the sensor, excessive weight on the seat, wear from normal use, corroded connections, or damage during seat removal/installation.

Q: Will B0143 cause my car to fail inspection?

Yes, an active airbag system error code will typically cause your vehicle to fail safety inspection in most states until the issue is properly repaired.

Q: How do I know if the weight sensor is working after repair?

After repair, the airbag warning light should turn off, and the passenger airbag light should illuminate when someone sits in the seat and turn off when the seat is empty.

Abstract

Error code B0143 indicates a problem with your vehicle's front passenger weight sensor circuit, which is part of the airbag safety system. This sensor determines whether someone is sitting in the passenger seat and helps control airbag deployment. When this error appears, your airbag warning light will likely be on and the passenger airbag may be disabled.