LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Scion >> 2009 >> xB Automatic >> Repair and Diagnosis >> Body & Frame >> Door Locks >> Power Door Lock Control System >> Door Control Switch Circuit >> Inspection Procedure
April 5, 2026: LEMON Manuals is launched! Read the announcement.

Inspection Procedure

  1. READ VALUE USING INTELLIGENT TESTER OR TECHSTREAM (DOOR CONTROL SWITCH) 
    1. Connect the Techstream to the DLC3.
    2. Turn the ignition switch ON.
    3. Turn the Techstream on.
    4. Enter the following menus: Body Electrical / Main Body / Data List.
    5. According to the display on the Techstream, read the "Data List".
      1. Main Body 
        DATA LIST - MAIN BODY

        Tester Display Measurement item/Range Normal Condition
        Door Lock SW-Lock Door control switch lock signal / ON or OFF ON Door control switch is pushed to lock position
        OFF Door control switch is not pushed
        Door Lock SW-Unlock Door control switch unlock signal / ON or OFF ON Door control switch is pushed to unlock position
        OFF Door control switch is not pushed

        OK: 

        The display is as specified in the normal condition column. 

        Result 

        RESULT REFERENCE

        Result Proceed to
        OK A
        NG (for Driver side) B
        NG (for Passenger side) C

    B: Go to step 2 

    C:  Go to step  4

    A : PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN  PROBLEM SYMPTOMS TABLE   .

  2. INSPECT POWER WINDOW REGULATOR MASTER SWITCH 
    1. Remove the power window master switch (see REMOVAL  ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      2 (L) - 1 (E) Lock Below 1 Ω
      2 (L) -1 (E) 9 (UL) - 1 (E) OFF (Free) 10 kΩ or higher
      9 (UL) - 1 (E) Unlock Below 1 Ω
    3. Reinstall the power window master switch (see INSTALLATION  ).
    Fig 1: Identifying Power Window Master Switch Connector Terminals
    G05390991Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE POWER WINDOW REGULATOR MASTER SWITCH  (See REMOVAL  )

    OK: Go to next step 

  3. CHECK HARNESS AND CONNECTOR (DOOR LOCK SWITCH - MAIN BODY ECU AND BODY GROUND) 
    1. Disconnect the E4 power window master switch connector.
    2. Disconnect the 2H main body ECU (instrument panel junction block) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      E4-2 (L) - 2H-13 (L1) Always Below 1 Ω
      E4-9 (UL) - 2H-14 (UL1)
      E4-1 - Body ground
      2H-13 (L1) - Body ground Always 10 kΩ or higher
      2H-14 (UL1) - Body ground
    4. Reconnect the power window master switch connector.
    5. Reconnect the main body ECU (instrument panel junction block) connector.
    Fig 2: Identifying Main Body ECU And Power Window Master Switch Connector Terminals
    G05390992Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : REPLACE MAIN BODY ECU 

  4. INSPECT DOOR CONTROL SWITCH 
    1. Remove the door control switch (see REMOVAL  ).
    2. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Switch Condition Specified Condition
      4 (L) - 3 (E) Lock Below 1 Ω
      4 (L) - 3 (E) 2 (UL) - 3 (E) OFF (Free) 10 kΩ or higher
      2 (UL) - 3 (E) Unlock Below 1 Ω
    3. Reinstall the door control switch (see INSTALLATION  ).
    Fig 3: Inspecting Door Control Switch
    G05390993Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPLACE DOOR CONTROL SWITCH  (See REMOVAL  )

    OK: Go to next step 

  5. CHECK HARNESS AND CONNECTOR (DOOR LOCK SWITCH - MAIN BODY ECU AND BODY GROUND) 
    1. Disconnect the D4 front door lock control switch RH connector.
    2. Disconnect the 2H main body ECU (instrument panel junction block) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified Condition
      D4-4 (L) - 2H-4 (L1) Always Below 1 Ω
      D4-2 (UL) - 2H-5 (UL1)
      D4-3 (E) - Body ground
      2H-4 (L1) - Body ground Always 10 kΩ or higher
      2H-5 (UL1) - Body ground
    4. Reconnect the front door lock control switch RH connector.
    5. Reconnect the main body ECU (instrument panel junction block) connector.
    Fig 4: Identifying Front Door Lock Control Switch And Main Body ECU Connector Terminals
    G05390994Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    NG : REPAIR OR REPLACE HARNESS OR CONNECTOR 

    OK : REPLACE MAIN BODY ECU