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Home >> Toyota >> 2007 >> FJ Cruiser 4WD, Part Time >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Door Lock >> Key Reminder Warning System >> Key Reminder Buzzer Does Not Sound >> Inspection Procedure

Inspection Procedure

  1. READ VALUE OF INTELLIGENT TESTER (D DOR CTY SW) 
    1. Connect the intelligent tester with CAN VIM to the DLC3.
    2. Turn the ignition switch ON and turn the intelligent tester main switch ON.
    3. Select the items below m the "DATA LIST" and read the display on the intelligent tester.

      BODY 

      DATA LIST (BODY)

      Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
      D DOR CTY SW Driver side door courtesy switch signal/ON or OFF ON: Driver side door is open
      OFF: Driver side door is closed      		 -

      OK: 

      When the driver side door is opened/closed, the display will change as shown above. 

    OK:  Go to step  4

    NG: Go TO NEXT STEP 

  2. INSPECT FRONT DOOR COURTESY SWITCH (DRIVER SIDE) 
    1. Remove the front door courtesy switch (driver side).
      Fig 1: Identifying Front Door Courtesy Switch (Driver Side)
      G05113837Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1 - Body ground Not pushed (ON) Below 1 Ω
      1 - Body ground Pushed (OFF) 10 kΩor higher
    3. Reinstall the front door courtesy switch (driver side).

    NG: REPLACE FRONT DOOR COURTESY SWITCH (DRIVER SIDE) 

    OK: Go TO NEXT STEP 

  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR COURTESY SWITCH (DRIVER SIDE) - MAIN BODY ECU) 
    1. Disconnect the J1 front door courtesy switch (driver side) connector.
    2. Disconnect the E7 main body ECU connector.
      Fig 2: Identifying E7 Main Body ECU & J1 Front Door Courtesy Switch Connector Terminals
      G04975599Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      J1-1 - E7-23 (DCTY) Below 1 Ω
      J1-1 or E7-23 (DCTY) - Body ground 10 kΩ or higher
    4. Reconnect the courtesy switch and main body ECU connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go TO NEXT STEP 

  4. READ VALUE OF INTELLIGENT TESTER (KEY UNLK WRN SW) 
    1. Connect the intelligent tester with CAN VIM to the DLC3.
    2. Turn the ignition switch ON and turn the intelligent tester main switch ON.
    3. Select the item below in the "DATA LIST" and read the display on the intelligent tester.

      BODY 

      DATA LIST (BODY)

      Item Measurement Item/Display (Range) Normal Condition Diagnostic Note
      KEY UNLK WRN SW Unlock warning switch signal/ON or OFF ON: Key Is In ignition key cylinder
      OFF: No key is In ignition key cylinder      		 -

      OK: 

      When the ignition key is operated, the display changes as shown above. 

    OK:  Go to step  7

    NG: Go TO NEXT STEP 

  5. INSPECT UNLOCK WARNING SWITCH ASSEMBLY 
    1. Remove the unlock warning switch assembly.
      Fig 3: Identifying Unlock Warning Switch Assembly
      G04966468Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      1-2 Not pushed 10 kΩ or higher
      1-2 Pushed Below 1 Ω
    3. Reinstall the unlock warning switch assembly.

    NG: REPLACE UNLOCK WARNING SWITCH ASSEMBLY 

    OK: Go TO NEXT STEP 

  6. CHECK HARNESS AND CONNECTOR (UNLOCK WARNING SWITCH ASSEMBLY - MAIN BODY ECU) 
    1. Disconnect the E21 unlock warning switch assembly connector.
    2. Disconnect the E8 main body ECU connector.
      Fig 4: Identifying E8 Main Body ECU & E21 Unlock Warning Switch Connector Terminals
      G05113836Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      E21-1 - E8-14 (KSW) Below 1 Ω
      E21-1 or E8-14 (KSW) - Body ground 10 kΩ or higher
      E21-2 - Body ground Below 1 Ω
    4. Reconnect the unlock warning switch and the main body ECU connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: Go TO NEXT STEP 

  7. INSPECT MAIN BODY ECU 
    1. Measure the voltage.

      Standard voltage 

      VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      E8-15 (KSWO) - Body ground Key is In Ignition key cylinder Below 1 V
      E8-15 (KSWO) - Body ground No key Is In Ignition key cylinder 10 to 14 V
      E8-11 (DCY2) - Body ground Driver side door is open Below 1 V
      E8-11 (DCY2) - Body ground Driver side door Is closed 10 to 14 V

    NG: REPLACE MAIN BODY ECU 

    Fig 5: Identifying E8 Main Body ECU Connector Terminals
    G05113868Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go TO NEXT STEP 

  8. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - MAIN BODY ECU) 
    1. Disconnect the E8 main body ECU connector.
    2. Disconnect the E13 combination meter assembly connector.
      Fig 6: Identifying E8 Main Body ECU & E13 Combination Meter Connector Terminals
      G05113869Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Specified Condition
      E8-15 (KSWO) - E13-9 (KSW) Below 1 Ω
      E8-15 (KSWO) or E13-9 (KSW) - Body ground 10 kΩ or higher
      E8-11 (DCY2) - E13-29 (DOOR) Below 1 Ω
      E8-11 (DCY2) or E13-29 (DOOR) - Body ground 10 kΩ or higher
    4. Reconnect the main body ECU and combination meter assembly connectors.

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK: REPLACE COMBINATION METER ASSEMBLY 

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