Components COMPONENTS ILLUSTRATION ![]() Installation INSTALLATION PROCEDURE 1. INSTALL OCCUPANT CLASSIFICATION ECU (a) Check that the ignition switch is OFF. (b) Check that the cable is disconnected from the battery negative (-) terminal. CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to prevent airbag and seat belt pretensioner activation. (c) Attach the claw and install the occupant detection ECU to the front seat assembly RH. NOTICE:
(d) Check that there is no looseness in the installation parts of the occupant classification ECU. 2. INSTALL FRONT SEAT ASSEMBLY RH (a) for Manual Seat: (See page (b) for Power Seat: (See page On-vehicle Inspection ON-VEHICLE INSPECTION PROCEDURE 1. CHECK OCCUPANT DETECTION ECU (VEHICLE NOT INVOLVED IN COLLISION) (a) Perform a diagnostic system check (see page
2. CHECK OCCUPANT DETECTION ECU (VEHICLE INVOLVED IN COLLISION AND AIRBAG HAS NOT DEPLOYED) (a) Perform a diagnostic system check (see page
3. CHECK OCCUPANT DETECTION ECU (VEHICLE INVOLVED IN COLLISION AND AIRBAG IS DEPLOYED) (a) Replace the ECU. CAUTION:
Removal REMOVAL PROCEDURE 1. REMOVE FRONT SEAT ASSEMBLY RH (a) for Manual Seat: (See page (b) for Power Seat: (See page 2. REMOVE OCCUPANT CLASSIFICATION ECU
(b) Detach the claw and remove the occupant classification ECU from the front seat assembly RH. |
Toyota Tundra Service Manual > Sfi System: ACIS Control Circuit
DESCRIPTION This circuit opens and closes the Intake Air Control Valve (IACV) in response to the engine load in order to increase the intake efficiency (ACIS: Acoustic Control Induction System). WIRING DIAGRAM PROCEDURE 1. PERFORM ACTIVE TEST USING TECHSTREAM (OPERATE VSV FOR ACIS) (a) Disconnect th ...