Center Airbag Sensor Assembly: Installation: Installation

1. Check that the power switch is off.
2. Check that the cable is disconnected from the negative (-) auxiliary battery terminal.
   WARNING:

   Wait at least 90 seconds after disconnecting the cable from the negative (-) auxiliary battery terminal to disable the SRS system.

3. Using SST, install the airbag ECU assembly with the 3 bolts.
   Fig 1: Installing Airbag ECU Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   • SST: 09961-00950 
   TEXT IN ILLUSTRATION
   
   

   *a

   Fulcrum Length

   -

   -

   without SST 

   Torque: 18 N*m (178 kgf*cm, 13 ft.*lbf) 

   with SST 

   Torque: 11 N*m (112 kgf*cm, 8 ft.*lbf) 

   NOTE:

   • Use a torque wrench with a fulcrum length of 250 mm (9.84 in.).
   • This torque value is effective when SST is parallel to a torque wrench.
   • If the airbag ECU assembly has been dropped, or there are any cracks, dents or other defects in the case or connector, replace it with a new one.
   • When installing the airbag ECU assembly, be careful that the SRS wiring does not interfere with or is not pinched between other parts.
   • When the power switch is first turned on (IG) after the airbag ECU assembly has been replaced, make sure that no one is in the vehicle.
4. Connect the connectors to the airbag ECU assembly as shown in the illustration.
   Fig 2: Identifying Connectors & Airbag ECU Assembly

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   TEXT IN ILLUSTRATION
   
   

   *1	Waterproof Sheet

   NOTE:

   When connecting any airbag connector, take care not to damage the airbag wire harness.

5. Check that the waterproof sheet is properly set.
6. Check that there is no looseness in the installation parts of the airbag ECU assembly.

Refer to INSTALLATION

Refer to DTC CHECK / CLEAR

Refer to DIAGNOSIS SYSTEM