Toyota 89173-09220
Front Impact Sensor

First disconnect the battery negative terminal and wait at least 90 seconds before starting the replacement of the Air Bag Sensor Assy Center. First disconnect the battery and wait ninety seconds before removing six elements which include both front door scuff plates and both cowl side trim sub-assemblies together with the left-hand instrument panel finish lower panel shift lever knob sub-assembly console box carpet and console upper rear panel sub-assembly console box sub-assembly rear with console door console panel sub-assembly upper instrument panel under cover sub-assembly No.1 and console box front and right-hand instrument panel finish lower panel. The air ducts (rear No.1 and No.2) along with the air bag sensor assy center can be removed after disconnecting their connector holder and removing the three bolts. The air bag sensor assy center installation requires you to check that SRS wiring avoids constriction and interference before securing it with three bolts using a torque of 17.5 Nm (178 kgf.cm, 13 ft.lbf). Verify that both connectors are attached to the holder and check the installation components for proper fit during the completion of installation. Also confirm that the water-proof sheet is properly in position. The battery negative terminal should be reconnected before initialization of systems and subsequent inspection of the SRS warning light. Air Bag sensor assy center replacement is needed whenever there is a drop or evident defect.

The torx screw should be tightened to a torque of 8.0 Nm (82 kgf.cm, 71 in.lbf).

Ensure there are no cracks, dents, or defects; if any are found, replace the assembly.

They are mounted only in the coupe model.

It must be replaced with a new one.

Ensure the ignition switch is off and the battery negative terminal is disconnected for at least 90 seconds before proceeding.