OBD-II code · Body
B0085 Passenger Belt Buckle Switch Circuit
The SRS module has detected a fault in the passenger belt buckle switch circuit. Same fault profile as B0084 but for the passenger side.
Is it safe to drive with B0085?
Usually safe to drive in the short term. Get it diagnosed when convenient, sooner if the car drives differently.
Common causes
- Most likelyBuckle switch failed
- PossibleWiring under seat open
Symptoms
- Warning light or symbol related to the affected system
- Comfort or safety function impaired
Repair at a glance
- Difficulty
- Medium
- DIY friendly
- Best left to a mechanic
- Typical labour
- 0.5–2.5 h
- Emissions test
- Usually unaffected
- Parts involved
- Seat Belt Buckle Switch, Srs Control Module, Srs Wiring
Related codes
- B0082Passenger Seatbelt Pretensioner Loop Open
- B0083Passenger Seatbelt Pretensioner Loop Short to Ground
- B0084Driver Belt Buckle Switch Circuit
- B0086Passenger Seatbelt Pretensioner Resistance Low
- B0087Passenger Seatbelt Pretensioner Resistance High
- B0088Third Row Right Seat Belt Load Limiter Deployment Control
Code data: OBDex open dataset (CC0). Labour times are typical ranges, not a quote.