OBD-II reference

All 9.533 generic OBD-II codes, explained in detail.

Causes, inspection steps and sources — a comprehensive DIY archive. Created and maintained with love for the detail. Good luck and have fun!

Body generic / SAE

B0064

Driver Seat Belt Tension Sensor

The SRS module has detected a fault in the driver seat belt tension sensor. This sensor measures belt load and is used by adaptive restraint systems to scale airbag deployment force based on occupant size.

SystemBody
Typegeneric / SAE
GroupB0
Range / number– / 64

Possible causes

  • Belt tension sensor failed high
  • Wiring or connector fault medium

Symptoms

  • Warning light or symbol related to the affected system
  • Comfort or safety function impaired

Inspection / repair

  • Difficulty: hard
  • DIY: shop recommended
  • Estimated cost: 150–700 €
  • Estimated time: 0.5–2 h
  • Component: seat belt tension sensor
  • Component: srs control module
  • Component: srs wiring

Sources

References

How to read OBD-II codes

The first letter names the vehicle system, the second digit distinguishes generic from manufacturer-specific, the remaining digits group fault area and number.

PPowertrain: engine, transmission, emissions
BBody: chassis trim, comfort, interior
CChassis: suspension, brakes, steering
UNetwork: CAN, control modules, communication