| REMOVAL PROCEDURE 1. PRECAUTION NOTICE: After
 turning the ignition switch off, waiting time may be required before 
disconnecting the cable from the battery terminal. Therefore, make sure 
to read the disconnecting the cable from the battery terminal notice 
before proceeding with work (See page  2. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system. NOTICE: When disconnecting the cable, some systems need to be initialized after the cable is reconnected (See page 
 3. REMOVE INSTRUMENT PANEL SUB-ASSEMBLY (a) for Column Shift Type: (See page  (b) for Floor Shift Type: (See page 
 4. REMOVE NO. 2 HEATER TO REGISTER DUCT   5. REMOVE NO. 2 SIDE DEFROSTER NOZZLE DUCT   6. REMOVE NO. 1 SIDE DEFROSTER NOZZLE DUCT   7. REMOVE DEFROSTER NOZZLE ASSEMBLY   8. REMOVE NAVIGATION ANTENNA ASSEMBLY (a) Detach the 2 clamps.  Text in Illustration 
 (b) Remove the 2 screws. (c) Detach the 2 guides and remove the navigation antenna assembly. | 
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 ...