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Home >> Toyota >> 2005 >> Matrix Base, 4WD >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock - Diagnostics >> Key Confinement Prevention Function Does Not Work Properly (Unlock Warning Switch Circuit) >> Inspection Procedure

Inspection Procedure

  1. INSPECT UNLOCK WARNING SWITCH ASSY 
    Fig 1: Checking Key Unlock Warning Switch
    G02677879Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the key unlock warning switch.
    2. Measure the resistance of the key unlock warning switch.
    KEY UNLOCK WARNING SWITCH TERMINALS RESISTANCE

    Tester Connection Switch Condition Specified Condition
    1 - 2 Not Pushed 10 kΩ or higher
    1 - 2 Pushed Below 1 Ω
    1. NG: REPLACE UNLOCK WARNING SWITCH ASSY 

    OK: Go to next step 

  2. CHECK WIRE HARNESS (UNLOCK WARNING SWITCH - INSTRUMENT PANEL J/B) 
    1. Disconnect the U1 unlock warning switch and 1J instrument panel J/B connectors.
      2. Fig 2: Identifying Key Unlock Warning Switch And Instrument Panel J/B Connector
      G02677880Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the wire harness side connectors.
    TESTER CONNECTION AND SPECIFIED CONDITION (CHECK FOR OPEN)

    Tester Connection Specified Condition
    2(U1-2)-KSW(IJ-8) Below 1 Ω
    1 (U 1-1) -Body ground Below 1 Ω
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 

    OK: Go to next step 

  3. INSPECT FRONT DOOR COURTESY LAMP SWITCH ASSY (DRIVER'S SIDE) 
    Fig 3: Inspecting Front Door Courtesy Lamp Switch Assy (Driver's Side)
    G02677881Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. Remove the courtesy lamp switch.
    2. Inspect the courtesy lamp switch continuity, as shown in the illustration and table.
    COURTESY LAMP SWITCH TERMINALS CONTINUITY

    Tester Connection Switch Condition Specified Condition
    1 -Body ground Free Below 1 Ω
    1 -Body ground Push 10 kΩ or higher
    1. NG: REPLACE FRONT DOOR COURTESY LAMP SWITCH ASSY 

    OK: Go to next step 

  4. CHECK WIRE HARNESS (FRONT DOOR COURTESY LAMP SWITCH [DRIVER'S SIDE] - INSTRUMENT PANEL J/B) 
    1. Disconnect the D7 courtesy lamp switch and 2D instrument panel J/B connectors.
      2. Fig 4: Identifying Front Door Courtesy Lamp Switch (Driver's Side) And Instrument Panel J/B Connectors
      G02677882Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance of the wire harness side connectors.
    TESTER CONNECTION AND SPECIFIED CONDITION (CHECK FOR OPEN)

    Tester Connection Specified Condition
    1 (D7-1)-DCTY(ID-1) Below 1 Ω
    1. NG: REPAIR OR REPLACE WIRE HARNESS AND CONNECTOR 

    OK: Go to next step 

    REPLACE INTEGRATION RELAY 

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