LIGHTING SYSTEM Door Unlock Detection Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

A01J9ZQE02

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      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 or RH unlocked

      OFF: Rear door LH and RH locked

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

      ON: Rear door LH or RH unlocked

      OFF: Rear door LH and RH locked

      		 -
      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 does not operate D
      Rear door unlock detection switch RH does not operate E

    B

    INSPECT FRONT DOOR LOCK ASSEMBLY LH Click here

    C

    INSPECT FRONT DOOR LOCK ASSEMBLY RH Click here

    D

    INSPECT REAR DOOR LOCK ASSEMBLY LH Click here

    E

    INSPECT REAR DOOR LOCK ASSEMBLY RH Click here

    A

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

  2. INSPECT FRONT DOOR LOCK ASSEMBLY LH


    1. 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 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  4. INSPECT FRONT DOOR LOCK ASSEMBLY RH


    1. 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 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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  6. INSPECT REAR DOOR LOCK ASSEMBLY LH


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

      OK
      Rear door lock assembly LH is normal.

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY LH Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY LH - MAIN BODY ECU AND BODY GROUND)


    1. Disconnect the Q1 rear door lock 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
      w/o Double Locking
      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
      w/ Double Locking
      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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. A01J8OCE05
      Text in Illustration
      *1

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      Remove the instrument panel junction block assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2D-25 - A-5 (LSR) Always Below 1 Ω
      2D-25 - Body ground Always 10 kΩ or higher

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    OK

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

  9. INSPECT REAR DOOR LOCK ASSEMBLY RH


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

      OK
      Rear door lock assembly RH is normal.

    NG

    REPLACE REAR DOOR LOCK ASSEMBLY RH Click here

    OK

  10. CHECK HARNESS AND CONNECTOR (REAR DOOR LOCK ASSEMBLY RH - MAIN BODY ECU AND BODY GROUND)


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

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

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

      Standard Resistance
      w/o Double Locking
      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
      w/ Double Locking
      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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  11. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. A01J8VTE02
      Text in Illustration
      *1

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      Remove the instrument panel junction block assembly.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      2B-29 - A-5 (LSR) Always Below 1 Ω
      2B-29 - Body ground Always 10 kΩ or higher

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY

    OK

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