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Home >> Toyota >> 2007 >> Highlander Hybrid Limited, AWD >> Repair and Diagnosis >> Body & Frame >> Exterior Body Panels >> (Door / Hatch) (Hybrid) >> Fuel Lid Opener System >> Fuel Lid Courtesy Switch Circuit >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER 
    1. Connect the intelligent tester (with CAN VIM) to the DLC3.
      Fig 1: Connecting Cable Of Intelligent Tester (With CAN VIM) To DLC3
      G05242064Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Turn the ignition switch to the ON position and turn the intelligent tester main switch on.
    3. Select FUEL LID in the DATA LIST and read the tester display.
      TERMINAL DISPLAY AND NORMAL CONDITION

      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FUEL LID Fuel lid courtesy switch: OPEN or CLOSE OPEN: Fuel lid is opened
      CLOSE: Fuel lid is not closed
      -

      OK: OPEN or CLOSE appears on the screen according to the fuel lid condition. 

    NG: Go to step 2 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE  

  2. INSPECT FUEL LID COURTESY SWITCH 
    1. Remove the fuel lid courtesy switch.
      Fig 2: Identifying Fuel Lid Courtesy Switch
      G05205424Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      1 - 2 Courtesy switch pushed (Fuel lid closed) Below 1 Ω
      Courtesy switch free (Fuel lid open) 10 kΩ or higher

    NG: REPLACE FUEL LID COURTESY SWITCH 

    OK: Go to Next Step 

  3. CHECK HARNESS AND CONNECTOR (FUEL LID COURTESY SWITCH - HYBRID VEHICLE CONTROL ECU) 
    1. Disconnect the H12 ECU connector.
      Fig 3: Identifying H12 ECU Connector Terminals
      G05205425Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      F16-1 - H12-13 (LIDO) Always Below 1 Ω
      F16-1 - Body ground 10 kΩ or higher

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go to Next Step 

  4. CHECK HARNESS AND CONNECTOR (FUEL LID COURTESY SWITCH BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.
      Fig 4: Identifying Fuel Lid Courtesy Switch H16 Connector Terminals
      G05205426Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard resistance 

      TESTER CONNECTION AND SPECIFIED CONDITION

      Tester Connection Condition Specified Condition
      F16-2 - Body ground Always Below 1 Ω

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE