LIGHTING SYSTEM Door Unlock Detection Switch Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of each door unlock detection switch.

WIRING DIAGRAM

A005A0HE18
A005A0HE19

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the GTS on.

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

    5. Read the display on the GTS.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      FL Door Lock Pos Front door unlock detection switch LH signal/ON or OFF

      ON: Front door LH unlocked

      OFF: Front door LH locked

      		 -
      FR Door Lock Pos Front door unlock detection switch RH signal/ON or OFF

      ON: Front door RH unlocked

      OFF: Front door RH locked

      		 -
      RL-Door Lock Pos SW Rear door unlock detection switch LH signal/ON or OFF

      ON: Rear door LH locked and rear door RH unlocked

      ON: Rear door LH unlocked and rear door RH locked

      ON: Rear door LH and rear door RH unlocked

      OFF: Rear door LH and rear door RH locked

      		 -
      RR-Door Lock Pos SW Rear door unlock detection switch RH signal/ON or OFF

      ON: Rear door LH locked and rear door RH unlocked

      ON: Rear door LH unlocked and rear door RH locked

      ON: Rear door LH and rear door RH unlocked

      OFF: Rear door LH and rear door RH locked

      		 -
      OK
      Normal conditions listed above are displayed.
      Result
      Result Proceed to
      OK A
      Front door unlock detection switch LH does not operate B
      Front door unlock detection switch RH does not operate C
      Rear door unlock detection switch LH and rear door unlock detection switch RH does not operate D

    A

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

    C

    INSPECT FRONT DOOR LOCK ASSEMBLY RH Click here

    D

    INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY LH Click here

    B

  2. INSPECT FRONT DOOR LOCK ASSEMBLY LH


    1. Remove the front door lock assembly LH Click here.

    2. Inspect the front door lock assembly LH Click here.

      OK
      Front door lock assembly LH is normal.

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY LH Click here

    OK

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


    1. Disconnect the O8 front door lock assembly LH connector.

    2. Disconnect the L7 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      O8-8 (LSSR) - L7-7 (LSFL) Always Below 1 Ω
      O8-8 (LSSR) - Body ground Always 10 kΩ or higher
      O8-7 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. INSPECT FRONT DOOR LOCK ASSEMBLY RH


    1. Remove the front door lock assembly RH Click here.

    2. Inspect the front door lock assembly RH Click here.

      OK
      Front door lock assembly RH is normal.

    NG

    REPLACE FRONT DOOR LOCK ASSEMBLY RH Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (FRONT DOOR LOCK ASSEMBLY RH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) AND BODY GROUND)


    1. Disconnect the N8 front door lock assembly RH connector.

    2. Disconnect the L7 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance

      Tester Connection

      (Symbols)

      		 Condition Specified Condition
      N8-7 (LSSR) - L7-18 (LSFR) Always Below 1 Ω
      N8-7 (LSSR) - Body ground Always 10 kΩ or higher
      N8-8 (E) - Body ground Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY LH


    1. Remove the rear door lock with motor assembly LH Click here.

    2. Inspect the rear door lock with motor assembly LH Click here.

      OK
      Rear door lock with motor assembly LH is normal.

    NG

    REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY LH Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY LH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)


    1. for LHD


      1. Disconnect the Q1 rear door lock with motor assembly LH connector.

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q1-6 (LSSR) - 2D-25 Always Below 1 Ω
        Q1-6 (LSSR) - Body ground Always 10 kΩ or higher
        Q1-9 (E) - Body ground Always Below 1 Ω

    2. for RHD (w/ Double Locking)


      1. Disconnect the Q1 rear door lock with motor assembly LH connector.

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q1-5 (LSSR) - 2D-25 Always Below 1 Ω
        Q1-5 (LSSR) - Body ground Always 10 kΩ or higher
        Q1-6 (E) - Body ground Always Below 1 Ω

    3. for RHD (w/o Double Locking)


      1. Disconnect the Q1 rear door lock with motor assembly LH connector.

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

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        Q1-6 (LSSR) - 2D-25 Always Below 1 Ω
        Q1-6 (LSSR) - Body ground Always 10 kΩ or higher
        Q1-9 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT REAR DOOR LOCK WITH MOTOR ASSEMBLY RH


    1. Remove the rear door lock with motor assembly RH Click here.

    2. Inspect the rear door lock with motor assembly RH Click here.

      OK
      Rear door lock with motor assembly RH is normal.

    NG

    REPLACE REAR DOOR LOCK WITH MOTOR ASSEMBLY RH Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK WITH MOTOR ASSEMBLY RH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)


    1. for LHD


      1. Disconnect the P1 rear door lock with motor assembly RH connector.

      2. Disconnect the 2B instrument panel junction block assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P1-6 (LSSR) - 2B-29 Always Below 1 Ω
        P1-6 (LSSR) - Body ground Always 10 kΩ or higher
        P1-9 (E) - Body ground Always Below 1 Ω

    2. for RHD (w/ Double Locking)


      1. Disconnect the P1 rear door lock with motor assembly RH connector.

      2. Disconnect the 2B instrument panel junction block assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P1-9 (LSSR) - 2B-29 Always Below 1 Ω
        P1-9 (LSSR) - Body ground Always 10 kΩ or higher
        P1-10 (E) - Body ground Always Below 1 Ω

    3. for RHD (w/o Double Locking)


      1. Disconnect the P1 rear door lock with motor assembly RH connector.

      2. Disconnect the 2B instrument panel junction block assembly connector.

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

        Standard Resistance
        Tester Connection Condition Specified Condition
        P1-6 (LSSR) - 2B-29 Always Below 1 Ω
        P1-6 (LSSR) - Body ground Always 10 kΩ or higher
        P1-9 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Remove the instrument panel junction block assembly Click here.

    2. Remove the main body ECU (multiplex network body ECU) from the instrument panel junction block assembly Click here.

      A005E6YE02
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2B-29 - MB-5 (LSR) Always Below 1 Ω
      2D-25 - MB-5 (LSR) Always Below 1 Ω

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here