LIGHTING SYSTEM Rear Door Courtesy Switch Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) detects the condition of the rear door courtesy light switch.

WIRING DIAGRAM

A01TDIFE02
*a Rear Door Courtesy Light Switch Assembly (LH)
*b Rear Door Courtesy Light Switch Assembly (RH)
*c Main Body ECU (Multiplex Network Body ECU)

PROCEDURE


  1. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

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

    5. Read the Data List according to the display on the GTS.


      Body Electrical > Main Body > Data List
      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      RR Door Courtesy SW Rear door courtesy light switch assembly (RH) signal ON or OFF

      ON: Rear door RH open

      OFF: Rear door RH closed

      		 -
      RL Door Courtesy SW Rear door courtesy light switch assembly (LH) signal ON or OFF

      ON: Rear door LH open

      OFF: Rear door LH closed

      		 -

      Body Electrical > Main Body > Data List
      Tester Display
      RR Door Courtesy SW
      RL Door Courtesy SW
      OK
      Normal conditions listed above are displayed.
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

  2. INSPECT REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH/RH)


    1. Remove the rear door courtesy light switch assembly.

      for Hatchback: Click here

      for Wagon: Click here

      for Sedan: Click here

    2. Inspect the rear door courtesy light switch assembly.

      for Hatchback: Click here

      for Wagon: Click here

      for Sedan: Click here

      OK
      Rear door courtesy light switch assembly is normal.
      Result
      Result Proceed to
      OK (for LH) A
      OK (for RH) B
      NG C

    B

    CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (RH) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU)) Click here

    C

    REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY for Hatchback: Click here
    REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY for Wagon: Click here
    REPLACE REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY for Sedan: Click here

    A

  3. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (LH) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the E22 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L2-1 - E22-24 (LCTY) Always Below 1 Ω
      L2-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  4. CHECK HARNESS AND CONNECTOR (REAR DOOR COURTESY LIGHT SWITCH ASSEMBLY (RH) - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the E22 main body ECU (multiplex network body ECU) connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      L27-1 - E22-6 (RCTY) Always Below 1 Ω
      L27-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR