LIGHTING SYSTEM Door Unlock Detection Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A01UY2JE02

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON (IG).

    3. Turn the GTS on.

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

    5. According to the display on the GTS, 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

      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

      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 LH or RH does not operate) B
      NG (Rear door unlock detection switch LH or RH does not operate) C

    A

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

    C

    INSPECT REAR DOOR LOCK ASSEMBLY LH OR RH Click here

    B

  2. INSPECT FRONT DOOR LOCK ASSEMBLY LH OR RH


    1. Inspect the front door lock assembly LH or RH Click here.


    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY LH OR RH Click here

    OK

  3. CHECK FRONT DOOR LOCK ASSEMBLY LH OR RH - MAIN BODY ECU AND BODY GROUND


    1. Disconnect the H6 or G6 front door lock assembly LH or RH connector.

    2. Disconnect the F57 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
      H6-8 (LSSR) - F57-7 (LSFL) Always Below 1 Ω
      H6-8 (LSSR) - Body ground Always 10 kΩ or higher
      H6-7 (E) - Body ground Always Below 1 Ω
      RH
      Tester Connection Condition Specified Condition
      G6-7 (LSSR) - F57-18 (LSFR) Always Below 1 Ω
      G6-7 (LSSR) - Body ground Always 10 kΩ or higher
      G6-8 (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 LH OR RH


    1. Inspect the rear door lock assembly LH or RH Click here.


    NG

    REPLACE REAR DOOR LOCK ASSEMBLY LH OR RH Click here

    OK

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


    1. Disconnect the J3 or I3 rear door lock assembly LH or RH 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) - 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) - 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) - 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) - 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.

      A01UYIJE02
      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