Airbags

B0094 — Center Frontal Restraints Sensor Fault (Subfault)

Severity: medium Drive with care, to a shop

What B0094 means

The restraint control module (SRS) detected a fault in the circuit of the center frontal impact sensor during its self-test. This sensor reports vehicle deceleration so the module can decide whether to deploy airbags and seat belt pretensioners. With a fault set, the system may limit or disable protection and turn on the airbag light.

Symptoms

  • Airbag/SRS warning light on
  • Stored fault for the frontal impact sensor
  • Possible passive safety system messages
  • Light may be steady or intermittent

Possible causes

  1. Failed center frontal impact sensor
  2. Open or shorted wiring in the sensor harness
  3. Poor connection or corrosion at the sensor or SRS module connector
  4. Damage from a collision or from work on seats or the console
  5. Faulty SRS control module (less common)

How to diagnose

  1. Scan all modules with an SRS-capable tool and note whether the code is current or history
  2. Ask about recent collisions or interior work such as seat or console removal
  3. Inspect the sensor connector and harness for damage, corrosion and loose fit
  4. Test the circuit for continuity and shorts to ground or power per the factory wiring diagram
  5. Check battery voltage and the SRS module connector pins
  6. Clear the code and see if it returns immediately
  7. Swap in a known good sensor to confirm

Common fixes

  • Repair damaged wiring or replace the connector
  • Clean and secure the connector terminals
  • Replace the center frontal impact sensor
  • Clear codes and verify the SRS system after repair

Questions and answers

Can I drive with B0094?

Yes, the car will run, but the airbags may not work properly in a crash. Don't put off diagnosis.

Can I just clear B0094?

If the cause remains, the code and light will return. Find the problem in the sensor, wiring or connector first.

Can I work on the SRS system myself?

Disconnect the battery and wait the time given in the service manual before touching SRS connectors. If you are not experienced, use 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.