LIGHTING SYSTEM Door Courtesy Switch Circuit

DESCRIPTION

The main body ECU receives a door open/closed signal from each door courtesy light switch.

WIRING DIAGRAM

A0097K2E01

INSPECTION PROCEDURE

PROCEDURE


  1. READ VALUE USING INTELLIGENT TESTER (DOOR COURTESY LIGHT SWITCH)


    1. Using the intelligent tester, read the Data List Click here.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      RR Door Courtesy SW Rear door courtesy light switch RH signal / ON or OFF

      ON: Rear door RH open

      OFF: Rear door RH closed

      		 -
      RL Door Courtesy SW Rear door courtesy light switch LH signal / ON or OFF

      ON: Rear door LH open

      OFF: Rear door LH closed

      		 -
      FR Door Courtesy Front door courtesy light switch RH signal / ON or OFF

      ON: Front door RH open

      OFF: Front door RH closed

      		 -
      FL Door Courtesy Front door courtesy light switch LH signal / ON or OFF

      ON: Front door LH open

      OFF: Front door LH closed

      		 -
      OK
      The display is as specified in the normal condition column.
      Result
      Result Proceed to
      OK A
      NG (Front door courtesy light switch does not operate) B
      NG (Rear door courtesy light switch does not operate) C

    B

    INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    C

    INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    A

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

  2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY


    1. A009BTA

      Remove the front door courtesy light switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - Switch body Pin not pushed Below 1 Ω
      Pin pushed 10 kΩ or higher

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY)


    1. Remove the main body ECU Click here.

    2. Disconnect the R7 or Q8 front door courtesy light switch connector.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      A-2 (FLCY) - R7-1 Always Below 1 Ω
      A-2 (FLCY) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      A-3 (FRCY) - Q8-1 Always Below 1 Ω
      A-3 (FRCY) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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

  4. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY


    1. A009BTA

      Remove the rear door courtesy light switch Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      1 - Switch body Pin not pushed Below 1 Ω
      Pin pushed 10 kΩ or higher

    NG

    REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU - REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY)


    1. Disconnect the G64 or G65 main body ECU connector.

    2. Disconnect the R8 or Q9 rear door courtesy light switch connector.

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

      Standard Resistance
      for LH
      Tester Connection Condition Specified Condition
      G65-3 (LCTY) - R8-1 Always Below 1 Ω
      G65-3 (LCTY) - Body ground Always 10 kΩ or higher
      for RH
      Tester Connection Condition Specified Condition
      G64-6 (RCTY) - Q9-1 Always Below 1 Ω
      G64-6 (RCTY) - Body ground Always 10 kΩ or higher

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

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