Airbag control unit is defective

The airbag control unit monitors all of the crash sensors and fires the airbag once certain conditions are met. The airbag control unit also checks the sensors on ignition to ensure they are all in working order.

Table of Contents

• 1. Symptoms
  • 1.1 Airbag Did Not Deploy in a Collision
  • 1.2 Airbag Dashboard Light is On

Symptoms

Airbag Did Not Deploy in a Collision

If a crash occurs where the airbag should have been deployed, a defective airbag control unit can fail to send the signal to fire. The sensors sent the signal to fire the airbag, but the defective control unit did not process the information correctly.

Not all collisions trigger the airbag. See collision requirements not met.

Airbag Dashboard Light is On

The airbag dashboard light illuminates when the airbag control unit detects a problem with the airbag system. If the control unit is defective, it may be misreading some of the sensors and activating the light.