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

A01GAKIE02

CAUTION / NOTICE / HINT

Note

When replacing the main body ECU (multiplex network body ECU), make sure to replace it with a new one.

PROCEDURE


  1. READ VALUE USING GTS (DOOR LOCK POSITION SWITCH)


    1. Using the GTS, read the Data List.

      Click here


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      FR Door Lock Pos Front door unlock detection switch RH signal UNLOCK or LOCK

      UNLOCK: Front door RH unlocked

      LOCK: Front door RH locked

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

      UNLOCK: Front door LH unlocked

      LOCK: Front door LH locked

      		 -
      RR-Door Lock Pos SW LH and RH side rear door unlock detection switch signal ON or OFF

      ON: LH or RH side rear door unlocked

      OFF: LH and RH side rear door locked

      		 w/ Entry and Start System or Theft Deterrent System
      RL-Door Lock Pos SW LH and RH side rear door unlock detection switch signal ON or OFF

      ON: LH or RH side rear door unlocked

      OFF: LH and RH side rear door locked

      		 w/ Entry and Start System or Theft Deterrent System

      Body Electrical > Main Body > Data List
      Tester Display
      FR Door Lock Pos
      FL Door Lock Pos
      RR-Door Lock Pos SW
      RL-Door Lock Pos SW
      OK
      The display is as specified in the normal condition column.
      Result
      Result Proceed to
      OK A
      NG (Front door unlock detection switch RH does not operate) B
      NG (Front door unlock detection switch LH does not operate) C
      NG (Rear door unlock detection switch does not operate) (w/ Entry and Start System or Theft Deterrent System) D

    A

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

    C

    INSPECT FRONT DOOR WITH MOTOR LOCK ASSEMBLY LH Click here

    D

    INSPECT REAR DOOR WITH MOTOR LOCK ASSEMBLY LH Click here

    B

  2. INSPECT FRONT DOOR WITH MOTOR LOCK ASSEMBLY RH


    1. Remove the front door with motor lock assembly RH.

      Click here

    2. Inspect the front door with motor lock assembly RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR WITH MOTOR LOCK ASSEMBLY RH Click here

    OK

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


    1. Disconnect the G78 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the I10 front door with motor lock assembly RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I10-7 (LSSR) - G78-18 (LSFR) Always Below 1 Ω
      I10-8 (E) - Body ground Always Below 1 Ω
      I10-7 (LSSR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for LHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here
    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for RHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. INSPECT FRONT DOOR WITH MOTOR LOCK ASSEMBLY LH


    1. Remove the front door with motor lock assembly LH.

      Click here

    2. Inspect the front door with motor lock assembly LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR WITH MOTOR LOCK ASSEMBLY LH Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (FRONT DOOR WITH MOTOR LOCK ASSEMBLY LH - MAIN BODY ECU AND BODY GROUND)


    1. Disconnect the G78 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the J10 front door with motor lock assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      J10-8 (LSSR) - G78-7 (LSFL) Always Below 1 Ω
      J10-7 (E) - Body ground Always Below 1 Ω
      J10-8 (LSSR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for LHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here
    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for RHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  6. INSPECT REAR DOOR WITH MOTOR LOCK ASSEMBLY LH


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

      Click here

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

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR DOOR WITH MOTOR LOCK ASSEMBLY LH Click here

    OK

  7. INSPECT REAR DOOR WITH MOTOR LOCK ASSEMBLY RH


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

      Click here

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

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR DOOR WITH MOTOR LOCK ASSEMBLY RH Click here

    OK

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


    1. Disconnect the 3E instrument panel junction block assembly connector

    2. Disconnect the L4 rear door with motor lock assembly LH connector.

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

      Standard Resistance
      w/ Double Locking System
      Tester Connection Condition Specified Condition
      L4-5 (LSSR) - 3E-32 Always Below 1 Ω
      L4-6 (E) - Body ground Always Below 1 Ω
      L4-5 (LSSR) - Body ground Always 10 kΩ or higher
      w/o Double Locking System
      Tester Connection Condition Specified Condition
      L4-6 (LSSR) - 3E-32 Always Below 1 Ω
      L4-9 (E) - Body ground Always Below 1 Ω
      L4-6 (LSSR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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


    1. Disconnect the 3C instrument panel junction block assembly connector

    2. Disconnect the K4 rear door with motor lock assembly RH connector.

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

      Standard Resistance
      w/ Double Locking System
      Tester Connection Condition Specified Condition
      K4-9 (LSSR) - 3C-41 Always Below 1 Ω
      K4-10 (E) - Body ground Always Below 1 Ω
      K4-9 (LSSR) - Body ground Always 10 kΩ or higher
      w/o Double Locking System
      Tester Connection Condition Specified Condition
      K4-8 (LSSR) - 3C-41 Always Below 1 Ω
      K4-9 (E) - Body ground Always Below 1 Ω
      K4-8 (LSSR) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  10. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. A01GBCSN01

      Remove the instrument panel junction block assembly.

      for LHD:

      Click here

      for RHD:

      Click here

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

      for LHD:

      Click here

      for RHD:

      Click here

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      A-5 (LSR) - 3E-32 Always Below 1 Ω
      A-5 (LSR) - 3C-41 Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for LHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here
    REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) for RHD: REPLACE MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU) Click here

    NG

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for LHD: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here
    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY for RHD: REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here