Occupant Classification Ecu: Installation

WARNING: This page is about a different car, the 2006 Toyota Land Cruiser. However, it is still accessible from the selected car via links, so may be relevant.

NOTE:

Never use SRS parts from another vehicle. When replacing the parts, replace them with new ones.
Never reuse an occupant classification ECU involved in a collision when the airbag has deployed.
If the occupant classification ECU has been dropped, or there are any cracks, dents or other defects in the case, bracket or connector, replace it with a new one.
When installing the occupant classification ECU, make sure that the SRS wiring does not interfere with other parts and that it is not pinched between other parts.
After installing shake the occupant classification ECU to check that there is no looseness.
Remove the front seat cushion cover pad and front seat cushion cover together, in order to avoid occupant classification sensor malfunctions.
Replace the occupant classification ECU, occupant classification sensor, seat cushion cover pad, seat cushion cover and seat cushion seat heater as a set.

INSTALL OCCUPANT CLASSIFICATION ECU
NOTE: Replace the occupant classification ECU, occupant classification sensor, seat cushion cover pad, seat cushion cover and seat cushion seat heater as a 5 part set.
1. Check that the ignition switch is OFF.
2. Check that the negative battery (-) terminal is disconnected.
  CAUTION: After disconnecting the negative battery terminal, wait for at least 90 seconds before starting the operation.
3. Install the ECU to the bracket with the 2 bolts.
  Torque: 3.0 N*m (31 kgf*cm, 27 in.*lbf)
  
  Fig 1: Installing ECU To Bracket With Bolts
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
4. Install the bracket with the 2 bolts.
5. Connect the connector to the occupant classification ECU.
  NOTE:
  - If the occupant classification ECU 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 occupant classification ECU, make sure that the SRS wiring does not interfere with other parts and that it is not pinched between other parts.
  - When replacing the occupant classification ECU, replace the bolt with a new one.
    
    Fig 2: Installing Bracket With Bolts
    Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
INSTALL FRONT SEAT CUSHION ASSEMBLY (See INSTALLATION )
REMOVE FRONT NO. 1 SEAT CUSHION SHIELD INNER RH (See REMOVAL )
INSTALL FRONT SEAT CUSHION SHIELD RH (See INSTALLATION )
INSTALL FRONT SEAT INNER BELT ASSEMBLY RH (See INSTALLATION )
REMOVE FRONT SEAT CUSHION SHIELD INNER RH (See REMOVAL )
INSTALL FRONT SEAT HEADREST ASSEMBLY
CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
INSERT OCCUPANT CLASSIFICATION ECU DATA (See REGISTRATION )
PERFORM ZERO POINT CALIBRATION AND SENSITIVITY CHECK (See REGISTRATION )
CHECK SRS WARNING LIGHT
1. Check SRS warning light (see DIAGNOSIS SYSTEM ).