LIGHTING SYSTEM Rear Door Courtesy Switch Circuit

DTC Code DTC Name
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

E258634E02

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 hereClick 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

    for Wagon:Click here

    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)

    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)

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR