LIGHTING SYSTEM Illumination Circuit

DESCRIPTION

The illuminated entry system receives signals from the ceiling light switches to control the ceiling lights.

WIRING DIAGRAM

A01CDMDE01

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / Main Body / Active Test.

    5. Check the operation.

      Main Body
      Tester Display Test Part Control Range Diagnostic Note
      Ceiling Light Ceiling lights ON/OFF -
      OK
      Ceiling lights come on.

    NG

    CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU) Click here

    OK

  2. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Ceiling Light SW Front ceiling light switch /ON or OFF

      ON: Front ceiling light switch pushed

      OFF: Front ceiling light switch not pushed

      		 -
      OK
      Normal conditions listed above are displayed.

    NG

    INSPECT FRONT CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) Click here

    OK

  3. READ VALUE USING INTELLIGENT TESTER


    1. Connect the intelligent tester to the DLC3.

    2. Turn the engine switch on (IG).

    3. Turn the intelligent tester on.

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

    5. Read the display on the intelligent tester.

      Main Body
      Tester Display Measurement Item/Range Normal Condition Diagnostic Note
      Rear Ceiling Light SW Rear ceiling light switch /ON or OFF

      ON: Rear ceiling light switch pushed

      OFF: Rear ceiling light switch not pushed

      		 -
      OK
      Normal conditions listed above are displayed.

    NG

    INSPECT REAR CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) Click here

    OK

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

  4. INSPECT FRONT CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. A01CGAEE01

      Remove the front ceiling light switch (integration control and panel assembly) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      2 - 3 Front ceiling light switch not pushed 10 kΩ or higher
      Front ceiling light switch pushed Below 1 Ω

    NG

    REPLACE FRONT CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) Click here

    OK

  5. CHECK HARNESS AND CONNECTOR (FRONT CEILING LIGHT SWITCH - MAIN BODY ECU AND BODY GROUND)


    1. A01CD37E01

      Disconnect the G50 main body ECU connector.

    2. Disconnect the G31 integration control and panel assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G50-3 (SW1) - G31-2 Always Below 1 Ω
      G50-3 (SW1) - Body ground Always 10 kΩ or higher
      G31-3 - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU Click here

  6. INSPECT REAR CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY)


    1. A01CDKDE01

      Remove the rear ceiling light switch (integration control and panel assembly) Click here.

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      8 (LP+) - 12 (E) Rear ceiling light switch not pushed 10 kΩ or higher
      Rear ceiling light switch pushed Below 1 Ω

    NG

    REPLACE REAR CEILING LIGHT SWITCH (INTEGRATION CONTROL AND PANEL ASSEMBLY) Click here

    OK

  7. CHECK HARNESS AND CONNECTOR (REAR CEILING LIGHT SWITCH - MAIN BODY ECU AND BODY GROUND)


    1. A01CCGRE01

      Disconnect the G50 main body ECU connector.

    2. Disconnect the R9 integration control and panel assembly connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G50-2 (SW2) - R9-8 (LP+) Always Below 1 Ω
      G50-2 (SW2) - Body ground Always 10 kΩ or higher
      R9-12 (E) - Body ground Always Below 1 Ω

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU Click here

  8. CHECK HARNESS AND CONNECTOR (BATTERY - MAIN BODY ECU)


    1. A01CEHVE03

      Disconnect the G49 main body ECU connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      G49-4 (ILRR) - Body ground Always 11 to 14 V
      G49-15 (ILRL) - Body ground Always 11 to 14 V

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE MAIN BODY ECU Click here