Airbags

B007D — Second Row Center Seatbelt Pretensioner B Deployment Control Fault

Severity: medium Safe to drive

What B007D means

The SRS control module continuously monitors the squib (igniter) circuit of the second row center seatbelt pretensioner. B007D means it found a problem in the pretensioner B deployment control circuit, such as an open, a short, wrong resistance or a communication error. It is a subfault, which refines a main circuit fault and often appears with other SRS codes.

Symptoms

  • SRS or airbag warning light on or flashing
  • Restraint system fault message in the instrument cluster
  • Other SRS codes stored for seatbelts or airbags
  • Rear seatbelt indicator behaving abnormally

Possible causes

  1. Faulty second row center seatbelt pretensioner
  2. Open, short or poor connection in the pretensioner wiring or connector
  3. Corroded or partly unseated connectors under the rear seat or in the trim
  4. Damage from interior work, rear seat removal or a pinched harness
  5. SRS control module fault (uncommon)

How to diagnose

  1. Scan all modules with an SRS-capable tool and save the freeze frame data
  2. Check for other seatbelt, airbag or SRS power codes and address those first
  3. Inspect the connectors and harness under the rear seat and near the center belt mount for damage, moisture or chafing
  4. Disconnect the battery and wait the time the manufacturer specifies before touching any SRS connector
  5. Test circuit resistance and isolation to ground per the factory wiring diagram, never applying tester power to a squib
  6. Compare readings with factory specs and check the pretensioner status in scan tool data
  7. Clear the code after repair and confirm it does not return

Common fixes

  • Repair or replace damaged wiring and connectors
  • Replace the second row center seatbelt pretensioner
  • Update or reprogram the SRS module if the manufacturer calls for it
  • Replace the SRS module if the fault is confirmed inside it

Questions and answers

What does B007D mean?

The SRS module found a fault in the control circuit for pretensioner B on the second row center seatbelt. The pretensioner may not fire in a crash.

Can I drive with code B007D?

Yes, it does not affect how the car drives. However, protection for the rear center passenger may be reduced, so have it checked soon.

Can I clear B007D myself?

A scan tool can erase it, but it will return if the cause remains. Only work on SRS connectors with the battery disconnected, and leave pretensioner replacement to a qualified technician.

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.