OBD-II trouble code
B0060: Driver Seatbelt Tension Sensor (Subfault)
The restraints module has flagged the driver belt tension sensor circuit. On the driver side this is a belt-use and reminder input rather than an airbag suppression input, which changes both the urgency and the likely cause.
Quick facts
- System
- Body
- Category
- Airbag / SRS Restraints
- Severity
- High severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $100 – $600
- DIY difficulty
- Shop recommended
What does B0060 mean?
A belt tension sensor is a strain gauge or potentiometer built into the belt anchor or retractor that reports how hard the webbing is being pulled. The restraints control module watches that circuit continuously against a narrow resistance window and stores B0060, with a symptom byte identifying the specific electrical condition, when the driver-side circuit falls outside it.
What the reading is used for differs meaningfully between the two front seats, and that difference is the most practical thing to understand about this code. On the passenger side, belt tension feeds occupant classification, because a cinched child restraint pulls the belt far tighter than a seated adult ever does and that signature helps the system decide whether to arm or suppress the passenger airbag. The driver seat has no equivalent decision to make. Nobody straps a child seat into it, and the driver airbag is not suppressed by occupant weight. So on this side the tension signal supports belt-use confirmation, reminder chime logic and, on some platforms, pretensioner and load-limiter behaviour — but a faulty circuit here does not leave the system liable to arm or disarm an airbag for the wrong kind of occupant. That is a genuine reduction in the failure consequence compared with its passenger-side counterpart, and it is worth knowing when deciding how alarmed to be.
The cause profile is also skewed by simple usage. The driver seat is the one seat guaranteed to be occupied on every trip the vehicle makes. It absorbs every entry and exit, every seat adjustment, and on power seats the full travel of a motorised base dragging its harness back and forth. The under-seat loom on this side accumulates flex cycles at a rate the passenger side never approaches, so driver-side circuit faults skew toward conductor fatigue and terminal fretting rather than one-off contamination — which is why they so often present as intermittent and why the fault frequently correlates with seat position. Moving the seat fully forward and fully back while monitoring the circuit is a far more productive test here than it is anywhere else in the cabin.
The driver side is also the crowded one. Power seat motors, memory position modules, heaters, and occupant position sensing frequently share the same under-seat connector shell. A fault that appears with other seat-related codes is often one connector, not several failures.
This is a supplemental restraint circuit. The vehicle drives normally, but the airbag lamp will be lit and the system may not behave as designed in a collision. Restraint circuits can deploy if mishandled, so diagnosis and repair belong with a qualified technician working to the manufacturer's disable procedure.
Common causes
- Conductor fatigue in the under-seat harness where it flexes with seat travel
- Fretting corrosion or a backed-out terminal in the shared driver under-seat connector
- Failed driver belt tension sensor element
- Harness pinched or trapped by a power seat mechanism or a seat rail
- Moisture or spilled liquid reaching the connector through the driver footwell carpet
- Aftermarket seat cover, seat heater or wiring tap disturbing the loom
- Restraints or occupant module fault, confirmed only after the circuit tests clean
Symptoms
- Airbag / SRS warning lamp illuminated
- Driver belt reminder chime triggering or failing to trigger incorrectly
- Fault that comes and goes as the seat is moved through its travel
- Other driver-seat codes stored alongside, pointing at a shared connector
- B0060 with a symptom byte stored in the restraints or occupant module
- No effect on how the vehicle starts, drives or brakes
Diagnostic steps
- 1.Retrieve B0060 with its full symptom byte and every companion code from the restraints module. The byte separates an open from a short and saves a great deal of probing.
- 2.Note whether other driver-seat modules have also logged faults. A cluster of driver-side codes usually means one connector rather than several failed parts.
- 3.Run the seat through its full fore-and-aft and recline travel and see whether the fault status changes. A position-dependent fault is a flex-fatigue fault and localises the search to the moving section of loom.
- 4.Disable the SRS following the manufacturer's procedure and observe the specified wait time before disconnecting anything.
- 5.Inspect the under-seat connector for fretted terminal plating, a backed-out pin and evidence of the shell having been disturbed by the seat mechanism.
- 6.Measure the sensor circuit against the specified resistance range, and where possible watch it change as belt tension is applied, to separate a failed element from a wiring fault.
- 7.Remove any aftermarket cover, heater pad or wiring tap before condemning parts, then repair, run the make-specific zero or calibration routine if required, and confirm the lamp stays out through several drive cycles.
Repair cost
$100 – $600
SRS diagnostic time typically runs $100 to $200. A terminal repair or a re-routed section of under-seat harness often closes the job out under $250. A replacement tension sensor with the required calibration commonly falls between $250 and $600, more where the sensor is integral to the belt assembly.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with airbag / srs crash sensor replacement preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
Leave this one to a qualified shop. It typically involves emissions-critical components, refrigerant handling, or other work that requires manufacturer-grade tooling, training, or certification. DIY attempts often produce a more expensive problem than the original code.