LIGHTING SYSTEM Door Unlock Detection Switch Circuit

DESCRIPTION

The main body ECU detects the condition of each door unlock detection switch.

WIRING DIAGRAM

A004ALJE02

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Main Body / Data List.

    5. According to the display on the intelligent tester, read the Data List.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FR Door Lock Pos

      Front door unlock detection switch RH signal /

      LOCK or UNLOCK

      LOCK: Front door RH locked

      UNLOCK: Front door RH unlocked

      		 -
      FL Door Lock Pos

      Front door unlock detection switch LH signal /

      LOCK or UNLOCK

      LOCK: Front door LH locked

      UNLOCK: Front door LH unlocked

      		 -
      RR-Door Lock Pos SW*1, *2, *3

      Rear door unlock detection switch LH and RH signal /

      OFF or ON

      OFF: Rear door LH and RH locked

      ON: Rear door LH or RH unlocked

      		 -
      RL-Door Lock Pos SW*1, *2, *3

      Rear door unlock detection switch LH and RH signal /

      OFF or ON

      OFF: Rear door LH and RH locked

      ON: Rear door LH or RH unlocked

      		 -
      OK
      Normal conditions listed above are displayed.
      Result
      Result Proceed to
      OK A
      NG (Front door unlock detection switch does not operate) B
      NG (Rear door unlock detection switch does not operate)*1, *2, *3 C

      • *1: for 5 Door

      • *2: for LHD with Entry and Start System

      • *3: for RHD with Double Locking System


    A

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE Click here

    C

    INSPECT REAR DOOR LOCK ASSEMBLY Click here

    B

  2. INSPECT FRONT DOOR LOCK ASSEMBLY


    1. Remove the front door lock assembly Click here.

    2. Inspect the front door lock assembly Click here.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY - MAIN BODY ECU AND BODY GROUND)


    1. Disconnect the H5 or G5 front door lock assembly connector.

    2. Disconnect the F76 main body ECU connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      LH
      Tester Connection Condition Specified Condition
      H5-8 (LSSR) - F76-7 (LSFL) Always Below 1 Ω
      H5-8 (LSSR) or F76-7 (LSFL) - Body ground Always 10 kΩ or higher
      H5-7 (E) - Body ground Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      G5-7 (LSSR) - F76-18 (LSFR) Always Below 1 Ω
      G5-7 (LSSR) or F76-18 (LSFR) - Body ground Always 10 kΩ or higher
      G5-8 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. INSPECT REAR DOOR LOCK ASSEMBLY


    1. Remove the rear door lock assembly Click here.

    2. Inspect the rear door lock assembly Click here.


    NG

    REPLACE REAR DOOR LOCK ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the J3 or I3 rear door lock assembly connector.

    2. Disconnect the 3D instrument panel junction block assembly connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      w/ Double Locking System
      LH
      Tester Connection Condition Specified Condition
      J3-5 (LSSR) - 3D-24 Always Below 1 Ω
      J3-5 (LSSR) or 3D-24 - Body ground Always 10 kΩ or higher
      J3-6 (E) - Body ground Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      I3-9 (LSSR) - 3D-25 Always Below 1 Ω
      I3-9 (LSSR) or 3D-25 - Body ground Always 10 kΩ or higher
      I3-10 (E) - Body ground Always Below 1 Ω
      w/o Double Locking System
      LH
      Tester Connection Condition Specified Condition
      J3-6 (LSSR) - 3D-24 Always Below 1 Ω
      J3-6 (LSSR) or 3D-24 - Body ground Always 10 kΩ or higher
      J3-9 (E) - Body ground Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      I3-6 (LSSR) - 3D-25 Always Below 1 Ω
      I3-6 (LSSR) or 3D-25 - Body ground Always 10 kΩ or higher
      I3-9 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly.

    2. Remove the main body ECU from the instrument panel junction block assembly.

    3. Measure the resistance according to the value(s) in the table below.

      A0047F1E01
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      LH
      Tester Connection Condition Specified Condition
      3D-24 - MB-5 (LSR) Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      3D-25 - MB-5 (LSR) Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY