LIGHTING SYSTEM(for 5L-E) Door Courtesy Switch Circuit

DESCRIPTION

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

WIRING DIAGRAM

B001CN4E01

PROCEDURE


  1. READ VALUE USING GTS


    1. Using the GTS, read the Data List.

      Click here

      Main Body
      Tester Display Measurement Item / Range Normal Condition Diagnostic Note
      FR Door Courtesy Front door courtesy light switch assembly RH signal / OFF or ON

      OFF: Front door RH closed

      ON: Front door RH open

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

      OFF: Front door LH closed

      ON: Front door LH open

      		 -
      RR Door Courtesy SW Rear door courtesy light switch assembly RH signal / OFF or ON

      OFF: Rear door RH closed

      ON: Rear door RH open

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

      OFF: Rear door LH closed

      ON: Rear door LH open

      		 -
      OK
      Normal condition listed above are displayed.
      Result
      Result Proceed to
      OK A
      NG ("FR Door Courtesy" is abnomal) B
      NG ("FL Door Courtesy" is abnomal) C
      NG ("RR Door Courtesy SW" is abnomal) D
      NG ("RL Door Courtesy SW" is abnomal) E

    A

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

    C

    INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH Click here

    D

    INSPECT REAR DOOR COURTESY LIGHT SWITCH RH Click here

    E

    INSPECT REAR DOOR COURTESY LIGHT SWITCH LH Click here

    B

  2. INSPECT FRONT DOOR COURTESY LIGHT SWITCH RH


    1. Remove the front door courtesy light switch RH.

      Click here

    2. Inspect the front door courtesy light switch RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH RH Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - FRONT DOOR COURTESY LIGHT SWITCH RH)


    1. Disconnect the 2D*1 or 2H*2 driver side junction block assembly connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the Q8 front door courtesy light switch RH connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      2D-15 - Q8-1 Always Below 1 Ω
      2D-15 or Q8-1 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      2H-26 - Q8-1 Always Below 1 Ω
      2H-26 or Q8-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  4. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY


    1. Remove the driver side junction block assembly.

      Click here

      B001DG9C01
      *A for LHD *B for RHD
      *a

      Component without harness connected

      (Driver Side Junction Block Assembly)

      		 - -

    2. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

      Click here

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      2D-15 - A-4 (FRCY) Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      2H-26 - A-4 (FRCY) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY Click here

  5. INSPECT FRONT DOOR COURTESY LIGHT SWITCH LH


    1. Remove the front door courtesy light switch LH.

      Click here

    2. Inspect the front door courtesy light switch LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE FRONT DOOR COURTESY LIGHT SWITCH LH Click here

    OK

  6. CHECK HARNESS AND CONNECTOR (DRIVER SIDE JUNCTION BLOCK ASSEMBLY - FRONT DOOR COURTESY LIGHT SWITCH LH)


    1. Disconnect the 2I*1 or 2D*2 driver side junction block assembly connector.


      • *1: for LHD

      • *2: for RHD

    2. Disconnect the R7 front door courtesy light switch LH connector.

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      2I-27 - R7-1 Always Below 1 Ω
      2I-27 or R7-1 - Body ground Always 10 kΩ or higher
      for RHD
      Tester Connection Condition Specified Condition
      2D-31 - R7-1 Always Below 1 Ω
      2D-31 or R7-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  7. CHECK DRIVER SIDE JUNCTION BLOCK ASSEMBLY


    1. Remove the driver side junction block assembly.

      Click here

      B001DG9C02
      *A for LHD *B for RHD
      *a

      Component without harness connected

      (Driver Side Junction Block Assembly)

      		 - -

    2. Remove the main body ECU (multiplex network body ECU) from the driver side junction block assembly.

      Click here

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

      Standard Resistance
      for LHD
      Tester Connection Condition Specified Condition
      2I-27 - A-2 (FLCY) Always Below 1 Ω
      for RHD
      Tester Connection Condition Specified Condition
      2D-31 - A-2 (FLCY) Always Below 1 Ω
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPLACE DRIVER SIDE JUNCTION BLOCK ASSEMBLY Click here

  8. INSPECT REAR DOOR COURTESY LIGHT SWITCH RH


    1. Remove the rear door courtesy light switch RH.

      Click here

    2. Inspect the rear door courtesy light switch RH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR DOOR COURTESY LIGHT SWITCH RH Click here

    OK

  9. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - REAR DOOR COURTESY LIGHT SWITCH RH)


    1. Disconnect the G64 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the Q9 rear door courtesy light switch RH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G64-6 (RCTY) - Q9-1 Always Below 1 Ω
      G64-6 (RCTY) or Q9-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

  10. INSPECT REAR DOOR COURTESY LIGHT SWITCH LH


    1. Remove the rear door courtesy light switch LH.

      Click here

    2. Inspect the rear door courtesy light switch LH.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE REAR DOOR COURTESY LIGHT SWITCH LH Click here

    OK

  11. CHECK HARNESS AND CONNECTOR (MAIN BODY ECU [MULTIPLEX NETWORK BODY ECU] - REAR DOOR COURTESY LIGHT SWITCH LH)


    1. Disconnect the G65 main body ECU (multiplex network body ECU) connector.

    2. Disconnect the R8 rear door courtesy light switch LH connector.

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

      Standard Resistance
      Tester Connection Condition Specified Condition
      G65-3 (LCTY) - R8-1 Always Below 1 Ω
      G65-3 (LCTY) or R8-1 - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    OK

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

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR