Airbags

B00E0 — Third Row Left Seatbelt Pretensioner B Deployment Control Fault

Severity: medium Safe to drive

What B00E0 means

The airbag (SRS) control module tests its squib and pretensioner circuits each time the ignition is turned on. B00E0 means it found a problem in the deployment control circuit for seatbelt pretensioner B at the third row left seat, such as an open, a short, wrong resistance or a poor connection. While the fault is active, that pretensioner may not fire in a crash.

Symptoms

  • SRS or airbag warning light on or flashing
  • SRS module stores a pretensioner circuit fault
  • Third row left pretensioner may be disabled
  • Seatbelt warning indicator may act abnormally

Possible causes

  1. Faulty third row left seatbelt pretensioner B
  2. Open or shorted wiring in the pretensioner circuit
  3. Corroded or loose pretensioner connector
  4. Harness damaged under trim or pinched by folding seats
  5. Faulty SRS control module (uncommon)
  6. Connector left unplugged or misconnected after interior work or a collision repair

How to diagnose

  1. Scan all modules with an SRS-capable tool and review freeze frame data to see if the fault is current
  2. Inspect the connector and harness at the third row left belt for damage, moisture or corrosion
  3. Check that the harness is not pinched by the seat, trim or cargo, and that connectors are fully latched
  4. Check the SRS connector locks or shorting bars as specified by the manufacturer
  5. Measure circuit resistance only per service information, with the battery disconnected and the required wait time observed
  6. Never apply voltage or probe the pretensioner directly with a standard meter, it can deploy
  7. Test the harness for opens and shorts to ground or power
  8. Clear the code after repair and confirm it does not return

Common fixes

  • Replace the third row left seatbelt pretensioner
  • Repair the wiring harness or replace the damaged section
  • Clean or replace the connector and restore contact
  • Replace or reprogram the SRS module if confirmed faulty
  • Clear the code and verify system operation after repair

Questions and answers

What does B00E0 mean?

The SRS module detected a fault in the deployment control circuit of seatbelt pretensioner B at the third row left seat. The cause is usually the pretensioner, its wiring or its connector.

Can I drive with code B00E0?

Yes, the car will drive normally. But the pretensioner may not fire in a crash, so have it repaired as soon as you can.

Can I test the pretensioner circuit myself?

You can visually inspect the connectors and harness after disconnecting the battery. Do any electrical testing of the circuit strictly per the manufacturer's procedure, because careless probing can set off the pretensioner.

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.