Inspection Procedure

Hand-held tester: 

1. PERFORM ACTIVE TEST USING HAND-HELD TESTER (OPERATE VSV FOR IAC VALVE NO. 2) 
   1. Disconnect the vacuum hose.
   2. Connect the hand-held tester to the DLC3.
   3. Turn the ignition switch ON and push the hand-held tester main switch ON.
   4. Enter the following menus: DIAGNOSIS / ENHANCED OBDII /ACTIVE TEST/ INTAKE CTL VSV1. Operate the VSV.
   5. Check the VSV operation when it is operated by the hand-held tester.
   Fig 1: Checking VSV Operation

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   VSV OPERATION CONDITIONS
   
   

   Tester Operation	Specified Condition
   VSV Is ON	Air from port E flows out through port F
   VSV is OFF	Air from port E flows out through the air filter

   1. OK: Go to step   4 
   2. NG: Go to next step 
2. CHECK VSV FOR IAC VALVE NO.2 (OPERATION) 
   1. Check that air flows from port E to the air filter.
      Fig 2: Checking Air Flows From Port E To Air Filter

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Apply battery positive voltage across the terminals.
   3. Check that air flows from port E to port F.
      Fig 3: Checking Air Flows From Port E To Port F

      Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPLACE VSV 
   2. OK: Go to next step 
3. CHECK WIRE HARNESS (VSV FOR IAC VALVE NO. 2 - ECM, VSF FOR IAC VALVE I NO. 2 - EFI RELAY) 
   1. Check the wire harness between the VSV and ECM.
      1. Disconnect the V2 VSV connector.
      2. Disconnect the E7 ECM connector.
      3. Check the resistance of the wire harness side connectors.

         Standard: 

         VSV AND ECM RESISTANCE SPECIFICATIONS
         
         

         Tester Connection	Specified Condition
         V2-2-E7-1S(ACIS)	Below 1 o
         V2-2 or E7-15 (ACIS) - Body ground	10kΩ or higher

         Fig 4: Identifying VSV And ECM Connector Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   2. Check the wire harness between the VSV and EFI relay.
      1. Disconnect the V2 VSV connector.
      2. Remove the EFI relay from the engine room J/B.
      3. Check the resistance of the wire harness side connectors.

         Standard: 

         VSV AND EFI RELAY RESISTANCE SPECIFICATIONS
         
         

         Tester Connection	Specified Condition
         V2-1 - J/B EFI relay terminal 3	Below 1 a

         Fig 5: Identifying VSV And EFI Relay Connector Terminals

         Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
   1. NG: REPAIR OR REPLACE HARNESS AND CONNECTOR 
   2. OK: Go to next step 
4. CHECK VACUUM HOSES (INTAKE MANIFOLD - INTAKE AIR CONTROL VALVE,[ INTAKE AIR CONTROL) 
   1. Check that the vacuum hoses are:
      • Connected correctly.
      • Are not loose or disconnected.
      • Do not have cracks, holes or damage.
   1. NG: REPAIR OR REPLACE VACUUM HOSES 
   2. OK: Go to next step 
5. INSPECT INTAKE AIR CONTROL VALVE (See  INSPECTION  ) 
   1. NG: REPLACE INTAKE AIR CONTROL VALVE 
   2. OK: REPLACE ECM (See  ECM (3MZ-FE)  ):