* Faulty Crash Sensor: The sensor that detects a collision might be malfunctioning, sending a signal that keeps the light on even when there's no problem. This is a common cause.
* Faulty Airbag Module (Control Unit): The module is the "brain" of the system. Internal failures can cause the light to illuminate. This is often expensive to repair as the module itself is usually replaced.
* Faulty Wiring or Connectors: Corrosion, damage, or loose connections in the wiring harness leading to the sensors, airbags, or the module can trigger the light. This is often found near the steering column and under the seats.
* Faulty Airbag(s): Though less common, a problem with the airbag itself could cause the light to stay on.
* Faulty Seatbelt Pretensioner: The pretensioners tighten the seatbelts in a crash. A malfunctioning one can also trigger the light.
* Low Battery Voltage: Sometimes a low battery voltage can cause the light to illuminate, although it usually resets once the battery is charged properly.
You should NOT attempt to diagnose or repair this yourself. The airbag system is complex and contains explosive devices. Incorrectly working on it could cause serious injury or even death.
What you SHOULD do:
* Get it professionally diagnosed: Take your 1991 Ford Taurus to a qualified mechanic specializing in airbag systems or a reputable auto repair shop. They have the proper tools and expertise to safely diagnose the issue and perform the necessary repairs. Using a generic OBDII scanner won't be enough for older vehicles like this one; they often require specialized SRS scanners.
* Don't drive the car until it's fixed: Driving with a malfunctioning airbag system puts you and your passengers at significant risk. The airbags might not deploy when needed, potentially leading to severe injuries.
The age of the vehicle significantly increases the likelihood that the problem involves wear and tear, corrosion, or a failing component within the system. Be prepared for potential costly repairs.
