LIGHTING SYSTEM Ambient Illumination Light Circuit

DESCRIPTION

The main body ECU (multiplex network body ECU) controls the ambient illumination lights.

WIRING DIAGRAM

A001WAEE01

CAUTION / NOTICE / HINT

Note


  • Inspect the lights for circuits related to this system before performing the following procedure.

  • Before replacing the main ECU (multiplex network body ECU), refer to Service Bulletin*1.


    • *1: w/ Entry and Start System

PROCEDURE


  1. PERFORM ACTIVE TEST 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 / Active Test.

    5. Perform the Active Test according to the display on the GTS.


      Body Electrical > Main Body > Active Test
      Tester Display Measurement Item Control Range Diagnostic Note
      Interior Illumination Light1

      • Cup holder illumination light

      • Door ambient illumination light

      		 ON or OFF

      Preconditions for using the Active Test to check dimmer controlled illumination:


      • for CVT


        • Ignition switch ON.

        • Shift lever is in any position other than P.

      • for Manual Transaxle


        • Ignition switch ON.

        • Parking brake released.

        • The vehicle speed is more than 3 km/h (1.9 mph)
      Interior Illumination Light2

      • Cup holder illumination light

      • Door ambient illumination light

      		 ON or OFF

      Preconditions for using the Active Test to check dimmer controlled illumination:


      • for CVT


        • Ignition switch ON.

        • Shift lever is in any position other than P.

      • for Manual Transaxle


        • Ignition switch ON.

        • Parking brake released.

        • The vehicle speed is more than 3 km/h (1.9 mph)

      Body Electrical > Main Body > Active Test
      Tester Display
      Interior Illumination Light1

      Body Electrical > Main Body > Active Test
      Tester Display
      Interior Illumination Light2
      OK
      Ambient illumination lights comes on.
      Result
      Result Proceed to
      OK A
      NG (All ambient lights do not illuminate) B
      NG (Cup holder illumination light does not illuminate) C
      NG (Door ambient illumination light does not illuminate) D

    A

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

    C

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    D

    INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    B

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


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

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      3K-1 - Body ground Always 11 to 14 V
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  3. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


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

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

      A001YEUC05
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3K-1 - 3D-24 Always Below 1 Ω
      3K-1 - 3D-25 Always Below 1 Ω
      3K-1 - 3D-26 Always Below 1 Ω
      3K-1 - 3D-27 Always Below 1 Ω
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    A

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

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

  4. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


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

    2. Disconnect the 3K instrument panel junction block assembly connector.

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

      A001YEUC05
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3K-1 - 3D-26 Always Below 1 Ω
      3K-1 - 3D-27 Always Below 1 Ω
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

  5. CHECK HARNESS AND CONNECTOR (INSTRUMENT CLUSTER FINISH PANEL GARNISH - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the F87 instrument cluster finish panel garnish connector.

    2. Disconnect the F88 instrument cluster finish panel center garnish connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      F87-2 (B) - 3D-26 Always Below 1 Ω
      F88-2 (B) - 3D-27 Always Below 1 Ω
      F87-2 (B) or 3D-26 - Body ground Always 10 kΩ or higher
      F88-2 (B) or 3D-27 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  6. CHECK HARNESS AND CONNECTOR (INSTRUMENT CLUSTER FINISH PANEL GARNISH - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the F16 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
      F87-1 (E) - F16-21(LED1) Always Below 1 Ω
      F88-1 (E) - F16-21 (LED1) Always Below 1 Ω
      F87-1 (E) or F16-21(LED1) - Body ground Always 10 kΩ or higher
      F88-1 (E) or F16-21 (LED1) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

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

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  7. INSPECT INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY


    1. Disconnect the instrument panel junction block assembly connectors.

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

      A001YEUC05
      *a

      Component without harness connected

      (Instrument Panel Junction Block Assembly)

      		 - -
      Standard Resistance
      Tester Connection Condition Specified Condition
      3K-1 - 3D-24 Always Below 1 Ω
      3K-1 - 3D-25 Always Below 1 Ω
      Result
      Result Proceed to
      OK A
      NG (for LHD) B
      NG (for RHD) C

    B

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    C

    REPLACE INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY Click here

    A

  8. CHECK HARNESS AND CONNECTOR (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - INSTRUMENT PANEL JUNCTION BLOCK ASSEMBLY)


    1. Disconnect the I11 No. 1 interior illumination light assembly RH connector.

    2. Disconnect the J9 No. 1 interior illumination light assembly LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      I11-1 (+) - 3D-24 Always Below 1 Ω
      I11-1 (+) or 3D-24 - Body ground Always 10 kΩ or higher
      J9-1 (+) - 3D-25 Always Below 1 Ω
      J9-1 (+) or 3D-25 - 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 (NO. 1 INTERIOR ILLUMINATION LIGHT ASSEMBLY - MAIN BODY ECU (MULTIPLEX NETWORK BODY ECU))


    1. Disconnect the F16 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
      I11-2 (-) - F16-22 (LED2) Always Below 1 Ω
      I11-2 (-) or F16-22 (LED2) - Body ground Always 10 kΩ or higher
      J9-2 (-) - F16-22 (LED2) Always Below 1 Ω
      J9-2 (-) or F16-22 (LED2) - Body ground Always 10 kΩ or higher
      Result
      Result Proceed to
      OK (for LHD) A
      OK (for RHD) B
      NG C

    A

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

    B

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

    C

    REPAIR OR REPLACE HARNESS OR CONNECTOR