Airbags

B007F — Passenger Seatbelt Pretensioner C Deployment Control Circuit Fault

Severity: high Drive with care, to a shop

What B007F means

The restraint control module (SRS) constantly monitors the squib circuit of the passenger seatbelt pretensioner for correct resistance, opens, and shorts to ground or voltage. B007F means the "C" circuit is outside its allowed range. The pretensioner may not fire, or may not fire correctly, in a crash.

Symptoms

  • Airbag/SRS warning light on
  • Seatbelt warning indicator on or flashing
  • Possible incorrect passenger occupancy detection
  • Other SRS codes stored along with B007F

Possible causes

  1. Faulty passenger seatbelt pretensioner
  2. Open or shorted wiring in the pretensioner circuit
  3. Poor connection or corrosion at the connector under the seat or in the pillar
  4. Harness damaged by seat movement or earlier interior repairs
  5. Faulty restraints control module or occupant classification system (less likely)

How to diagnose

  1. Read all SRS codes with a scan tool that supports airbag systems and note the freeze frame data
  2. Inspect the pretensioner connector and harness at the pillar and under the seat for looseness or corrosion
  3. Check for harness damage from seat movement or recent interior work
  4. With the battery disconnected and the manufacturer's wait time observed, measure circuit resistance per the service manual; never probe the squib directly with a meter
  5. Test the circuit for opens and shorts to ground or voltage
  6. Clear the code and see if it returns; if it does, test the SRS module

Common fixes

  • Repair the wiring or replace a damaged connector
  • Replace the passenger seatbelt pretensioner
  • Replace or reprogram the SRS module or occupant classification sensor
  • Clean the terminals and secure the connectors

Questions and answers

Can I drive with code B007F?

The car will run, but the pretensioner and possibly the airbags may not work in a crash. Don't put off diagnosis for long.

Can I test the pretensioner circuit myself?

SRS work carries a risk of accidental deployment. Disconnect the battery, wait the time given in the manual, and never apply power to the squib. If you lack experience, see a shop.

This is general information about the code. The meaning can differ between makes and models: a scan tool and the repair manual for your car will show the exact cause.