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

A01W2PEE11

CAUTION / NOTICE / HINT

Note

If the main body ECU (multiplex network body ECU) is replaced, refer to Service Bulletin.

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the engine 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
      FR Door Lock Pos Front door RH unlock detection switch signal/LOCK or UNLOCK

      LOCK: Front door RH locked

      UNLOCK: Front door RH unlocked

      		 -
      FL Door Lock Pos Front door LH unlock detection switch signal/LOCK or UNLOCK

      LOCK: Front door LH locked

      UNLOCK: Front door LH unlocked

      		 -
      RR-Door Lock Pos SW Rear door RH unlock detection switch 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

      		 -
      RL-Door Lock Pos SW Rear door LH unlock detection switch/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

      		 -
      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 or 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 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 M1 front door lock assembly LH connector.

    2. Disconnect the H10 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
      M1-8 (LSSR) - H10-7 (LSFL) Always Below 1 Ω
      M1-8 (LSSR) - Body ground Always 10 kΩ or higher
      M1-7 (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 L1 front door lock assembly RH connector.

    2. Disconnect the H10 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
      L1-7 (LSSR) - H10-18 (LSFR) Always Below 1 Ω
      L1-7 (LSSR) - Body ground Always 10 kΩ or higher
      L1-8 (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 ASSEMBLY LH


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

    2. 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 - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY AND BODY GROUND)


    1. Disconnect the O1 rear door lock assembly LH connector.

    2. Disconnect the 3C 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
      O1-6 (LSSR) - 3C-17 Always Below 1 Ω
      O1-6 (LSSR) - Body ground Always 10 kΩ or higher
      O1-9 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  8. INSPECT REAR DOOR LOCK ASSEMBLY RH


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

    2. 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

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


    1. Disconnect the N1 rear door lock assembly RH connector.

    2. Disconnect the 3A 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
      N1-6 (LSSR) - 3A-53 Always Below 1 Ω
      N1-6 (LSSR) - Body ground Always 10 kΩ or higher
      N1-9 (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.

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

      A01W5DWE04
      Text in Illustration
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3C-17 - MB-5 (LSR) Always Below 1 Ω
      3A-53 - 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