First Row Center Seatbelt Load Limiter Deployment Control

B0081 (seat belt pretensioner circuit) on Honda is usually the driver-side pretensioner at the B-pillar. These fire once and must be replaced after deployment. If there has been no crash, suspect a broken yellow wire at the base of the B-pillar where the seat belt retractor is bolted. Remove the trim, inspect the wire for pinch damage where the plastic trim clips compress it. There is no consumer-grade part or tool that safely resolves a restraint deployment-circuit fault, so we do not recommend one here - a scan tool that only clears the code would switch the warning light off while leaving the restraint disabled.

Toyota B0081 usually traces to a disconnected or loose yellow connector at the base of the B-pillar under the door sill scuff plate. Pop off the scuff plate, lift the carpet edge, and verify the connector is fully latched. If it is seated and the code returns, the pretensioner has likely triggered (post-collision) and needs the full seat belt assembly replaced.

Pilot and Odyssey B0081 codes often appear after interior work where the B-pillar trim was removed. The pretensioner connector has a CPA lock that is easy to miss when reassembling. Re-seat the connector, verify CPA is clicked in, and clear the code. If code returns, the pretensioner assembly itself may be resistance-out-of-spec and must be replaced. There is no consumer-grade part or tool that safely resolves a restraint deployment-circuit fault, so we do not recommend one here - a scan tool that only clears the code would switch the warning light off while leaving the restraint disabled.