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Home >> Toyota >> 2009 >> Highlander Base, 3.5 S, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2GR-FE) - System And Component Testing, Removal, Inspection And Installation >> Fuel Injector Circuit >> Inspection Procedure
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Inspection Procedure

  1. CHECK FUEL INJECTOR ASSEMBLY (POWER SOURCE) 
    1. Disconnect the fuel injector assembly connector.
    2. Turn the ignition switch on (IG).
    3. Measure the voltage according to the value(s) in the table below.

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Switch Condition Specified Condition
      B13-2 - Body ground Ignition switch on (IG) 9 to 14 V
      B14-2 - Body ground Ignition switch on (IG) 9 to 14 V
      B15-2 - Body ground Ignition switch on (IG) 9 to 14 V
      B16-2 - Body ground Ignition switch on (IG) 9 to 14 V
      B17-2 - Body ground Ignition switch on (IG) 9 to 14 V
      B18-2 - Body ground Ignition switch on (IG) 9 to 14 V
    4. Turn the ignition switch off.
    5. Reconnect the fuel injector assembly connector.

      NG: Go to step  4

      Fig 1: Identifying Fuel Injector Connector Terminals
      G05413701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: Go to next step 

  2. INSPECT FUEL INJECTOR ASSEMBLY 
    1. Inspect the injector assembly (See INSPECTION ).

      NG: REPLACE FUEL INJECTOR ASSEMBLY  (See FUEL INJECTOR )

      OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (FIEL INJECTOR ASSEMBLY - ECM) 
    1. Disconnect the fuel injector connector (of the misfiring cylinder).
    2. Measure the voltage according to the value(s) in the table below.
      Fig 2: Identifying Fuel Injector Connector Terminals
      G05413701Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard voltage 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Cylinder Tester Connection Switch Condition Specified Condition
      No. 1 B13-2 - Body ground Ignition switch on (IG) 11 to 14 V
      No. 2 B14-2 - Body ground Ignition switch on (IG) 11 to 14 V
      No. 3 B15-2 - Body ground Ignition switch on (IG) 11 to 14 V
      No. 4 B16-2 - Body ground Ignition switch on (IG) 11 to 14 V
      No. 5 B17-2 - Body ground Ignition switch on (IG) 11 to 14 V
      No. 6 B18-2 - Body ground Ignition switch on (IG) 11 to 14 V

      NG: REPAIR OR REPLACE HARNESS OR CONNECTOR (FUEL INJECTOR ASSEMBLY - ECM) 

      OK: REPLACE ECM  (See REMOVAL  )

  4. INSPECT FUSE (INJ NO. 2 FUSE) 
    1. Remove the INJ No. 2 fuse from engine room relay block.
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION SPECIFIED CONDITION CHART

      Tester Connection Condition Specified Condition
      INJ No. 2 fuse Always Below 1 Ω
    3. Reinstall the INJ No. 2 fuse.

      NG: REPLACE FUSE 

      Fig 3: Identifying INJ No. 2 Fuse
      G05413922Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      OK: REPAIR OR REPLACE HARNESS OR CONNECTOR (INTEGRATION RELAY (IG2 RELAY) - FUEL INJECTOR ASSEMBLY) 

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