Airbags

B007E — Driver Seatbelt Pretensioner C Deployment Control Fault

Severity: high Drive with care, to a shop

What B007E means

The restraint control module detected a fault in the deployment control circuit for the driver seatbelt pretensioner, stage or circuit C. In a serious crash the pretensioner tightens the belt in milliseconds to hold the driver in place. If the module can't confirm the circuit is healthy, it stores the code and turns on the airbag warning light.

Symptoms

  • Airbag (SRS) warning light on or flashing
  • B007E stored in the restraint module
  • Pretensioner may not deploy in a crash
  • Seatbelt warning behavior may be erratic

Possible causes

  1. Faulty driver seatbelt pretensioner (circuit C)
  2. Open, short or corroded wiring near the seat or pillar
  3. Poor connection at the pretensioner connector
  4. Wiring damaged during seat or interior work
  5. Restraints control module failure (uncommon)

How to diagnose

  1. Scan the SRS module and note any other stored codes
  2. Inspect the pretensioner connector and harness near the pillar and under the seat for moisture, corrosion or chafing
  3. Check for wiring damage from recent seat or trim work
  4. Disconnect the battery and wait the specified time, then check connector seating
  5. Check circuit resistance only per the service manual, never applying voltage to the pretensioner
  6. Clear the code and see if it returns immediately or only while driving
  7. If it persists, test the SRS module using manufacturer procedures

Common fixes

  • Repair wiring or replace a damaged connector
  • Replace the driver seatbelt pretensioner
  • Replace or reprogram the restraints control module if confirmed faulty
  • Clean contacts and clear the code after repair

Questions and answers

What does B007E mean?

The restraint module found a fault in the driver seatbelt pretensioner C control circuit. The safety system may not work properly in a crash.

Can I drive with B007E?

The engine and brakes are unaffected, but driver protection in a crash is reduced. Have it diagnosed soon.

Can I test the pretensioner myself?

No. It contains a pyrotechnic charge, and incorrect testing can trigger it. Have an SRS-qualified shop do it.

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.