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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> Accessories & Equipment >> Interior/Illumination Lights >> Lighting System (Int) - Diagnostics & Circuit Tests (2 Of 2) >> Lighting System >> Instrument Panel Illumination does not Turn On [11/2023 - ] >> Procedure

Instrument Panel Illumination does not Turn On [11/2023 - ]: Procedure

  1. READ VALUE USING GTS 
    1. Turn the light control switch to the TAIL position.
    2. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    See step  5

    Result: 

    OK 

    See step  2

  2. READ VALUE USING GTS 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Input Signal Panel light input condition OFF or ON OFF: Light control switch not in TAIL position
      ON: Light control switch in TAIL position      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Input Signal

      OK

      The GTS display changes correctly in response to the operation of the light control switch.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE POWER DISTRIBUTION BOX ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    OK 

    See step  3

  3. READ VALUE USING GTS 
    1. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Output Signal Panel light output condition OFF or ON OFF: Panel light off
      ON: Panel light on      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Output Signal

      OK

      The GTS display changes correctly in response to the operation of the light control switch.

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE POWER DISTRIBUTION BOX ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR 
    1. Disconnect the K7 rear power window regulator switch assembly LH connector.
    2. Disconnect the K2 rear power window regulator switch assembly RH connector.
    3. Disconnect the R11 map light assembly connector.
    4. Disconnect the H34 fuel lid opener switch connector.
    5. Disconnect the H23 trip switch connector.
    6. w/ Power Back Door System
      1. Disconnect the H30 power back door control switch connector.
    7. w/ Heated Steering Wheel System
      1. Disconnect the H38 steering heater switch connector.
    8. Disconnect the H41 auto high beam switch connector.
    9. Disconnect the J18 multiplex network master switch assembly connector.
    10. Disconnect the J22 outer mirror switch assembly connector.
    11. Disconnect the z1 steering pad switch assembly connector.
    12. Disconnect the H24 spiral cable sub-assembly connector.
    13. Disconnect the H107 radio and display receiver assembly connector.
    14. w/ Engine Stop and Start System
      1. Disconnect the H131 eco-run cancel switch assembly connector.
    15. w/ Accessory Power Outlet System
      1. Disconnect the H36 power outlet switch connector.
    16. w/ Wireless Charging System
      1. Disconnect the H116 mobile wireless charger cradle assembly connector.
    17. w/ Panoramic View Monitor System
      1. Disconnect the H35 front wide view switch connector.
    18. for T24A-FTS AWD with Push Switch Type
      1. Disconnect the P10 crawl control switch assembly connector.
    19. for T24A-FTS AWD with Dial Switch Type
      1. Disconnect the P10 No. 1 pattern select switch assembly connector.
    20. Disconnect the H27 air conditioning control assembly connector.
    21. Disconnect the P6 VSC off switch connector.
    22. for T24A-FTS AWD
      1. Disconnect the P4 downhill assist control switch connector.
    23. Disconnect the P3 No. 1 pattern select switch assembly connector.
    24. Disconnect the P1 shift position indicator connector.
    25. for A25A-FXS
      1. Disconnect the P9 pattern select switch assembly connector.
    26. Disconnect the P2 electric parking brake switch assembly connector.
    27. for T24A-FTS
      1. Disconnect the P5 pattern select switch connector.
    28. for A25A-FXS AWD
      1. Disconnect the P8 pattern select switch assembly connector.
    29. Disconnect the T2 No. 2 air conditioning control assembly connector.
    30. Disconnect the G6 hazard warning signal switch assembly connector.
    31. Disconnect the J4 door control switch assembly connector.
    32. Disconnect the J3 power window regulator switch assembly connector.
    33. Disconnect the H70 glove box light assembly connector.
    34. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K2-3 (ILL+) - 8G-22 Always Below 1 Ω
      K7-3 (ILL+) - 8G-22 Always Below 1 Ω
      R11-9 (ILLB) - 8C-53 Always Below 1 Ω
      H34-6 (ILL+) - 8C-53 Always Below 1 Ω
      H23-5 (ILL+) - 8C-53 Always Below 1 Ω
      H30-6 (ILL+) - 8C-53*1 Always Below 1 Ω
      H38-6 (ILL+) - 8C-53*2 Always Below 1 Ω
      H41-6 (ILL+) - 8C-53 Always Below 1 Ω
      J18-3 (ILL+) - 8C-53 Always Below 1 Ω
      J22-12 (ILL+) - 8C-53 Always Below 1 Ω
      z1-1 (IL+2) - 8C-53 Always Below 1 Ω
      H24-14 (IL+2) - 8C-53 Always Below 1 Ω
      H107-25 (ILL+) - 8C-53 Always Below 1 Ω
      H131-6 (ILL+) - 8C-53 Always Below 1 Ω
      H36-6 (ILL+) - 8C-53*3 Always Below 1 Ω
      H116-7 (TAIL) - 8C-53*4 Always Below 1 Ω
      H35-6 (ILL+) - 8C-53*5 Always Below 1 Ω
      P10-7 (ILL+) - 8C-53*6 Always Below 1 Ω
      P10-7 (ILL+) - 8C-53*7 Always Below 1 Ω
      H27-1 (ILL+) - 8C-53*8 Always Below 1 Ω
      H27-1 (ILL+) - H66-25 (IL41)*9 Always Below 1 Ω
      P6-6 (ILL+) - 8C-53 Always Below 1 Ω
      P4-6 (ILL+) - 8C-53*10 Always Below 1 Ω
      P3-1 (ILL+) - 8C-53 Always Below 1 Ω
      P1-4 (ILL+) - 8C-53 Always Below 1 Ω
      P9-6 (ILL+) - 8C-53*11 Always Below 1 Ω
      P2-9 (ILL+) - 8C-53 Always Below 1 Ω
      P5-6 (ILL+) - 8C-53*12 Always Below 1 Ω
      P8-6 (ILL+) - 8C-53*13 Always Below 1 Ω
      T2-10 (ILL+) - 8C-53*8 Always Below 1 Ω
      T2-10 (ILL+) - H66-25 (IL41)*9 Always Below 1 Ω
      G6-7 (ILL+) - 8C-53 Always Below 1 Ω
      J4-3 (ILL+) - 8C-53 Always Below 1 Ω
      J3-3 (ILL+) - 8C-53 Always Below 1 Ω
      H70-2 (B) - 8C-53 Always Below 1 Ω

      *1: w/ Power Back Door System

      *2: w/ Heated Steering Wheel System

      *3: w/ Accessory Power Outlet System

      *4: w/ Wireless Charging System

      *5: w/ Panoramic View Monitor System

      *6: for T24A-FTS AWD with Push Switch Type

      *7: for T24A-FTS AWD with Dial Switch Type

      *8: w/o Engine Stop and Start System

      *9: w/ Engine Stop and Start System

      *10: for T24A-FTS AWD

      *11: for A25A-FXS

      *12: for T24A-FTS

      *13: for A25A-FXS AWD

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER DISTRIBUTION BOX ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  5. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH 
    1. Disconnect the K7 rear power window regulator switch assembly LH connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY LH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  6

  6. INSPECT REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH 
    1. Disconnect the K2 rear power window regulator switch assembly RH connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY RH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  7

  7. INSPECT MAP LIGHT ASSEMBLY 
    1. Disconnect the R11 map light assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MAP LIGHT ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  8

  8. INSPECT FUEL LID OPENER SWITCH 
    1. Disconnect the H34 fuel lid opener switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FUEL LID OPENER SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  9

  9. INSPECT TRIP SWITCH 
    1. Disconnect the H23 trip switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE TRIP SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  10

  10. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Power Back Door System A
    w/ Power Back Door System B

    Result: 

    A 

    See step  12

    Result: 

    B 

    See step  11

  11. INSPECT POWER BACK DOOR CONTROL SWITCH 
    1. Disconnect the H30 power back door control switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER BACK DOOR CONTROL SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  12

  12. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Heated Steering Wheel System A
    w/ Heated Steering Wheel System B

    Result: 

    A 

    See step  14

    Result: 

    B 

    See step  13

  13. INSPECT STEERING HEATER SWITCH 
    1. Disconnect the H38 steering heater switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING HEATER SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  14

  14. INSPECT AUTO HIGH BEAM SWITCH 
    1. Disconnect the H41 auto high beam switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AUTO HIGH BEAM SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  15

  15. INSPECT MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY 
    1. Disconnect the J18 multiplex network master switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MULTIPLEX NETWORK MASTER SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  16

  16. INSPECT OUTER MIRROR SWITCH ASSEMBLY 
    1. Disconnect the J22 outer mirror switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE OUTER MIRROR SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  17

  17. INSPECT STEERING PAD SWITCH ASSEMBLY 
    1. Disconnect the z1 steering pad switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE STEERING PAD SWITCH ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    See step  18

  18. INSPECT SPIRAL CABLE SUB-ASSEMBLY 
    1. Disconnect the H24 spiral cable sub-assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SPIRAL CABLE SUB-ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    See step  19

  19. INSPECT RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Disconnect the H107 radio and display receiver assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    See step  20

  20. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Engine Stop and Start System A
    w/ Engine Stop and Start System B

    Result: 

    A 

    See step  22

    Result: 

    B 

    See step  21

  21. INSPECT ECO-RUN CANCEL SWITCH ASSEMBLY 
    1. Disconnect the H131 eco-run cancel switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ECO-RUN CANCEL SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  22

  22. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Accessory Power Outlet System A
    w/ Accessory Power Outlet System B

    Result: 

    A 

    See step  24

    Result: 

    B 

    See step  23

  23. INSPECT POWER OUTLET SWITCH 
    1. Disconnect the H36 power outlet switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER OUTLET SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  24

  24. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Wireless Charging System A
    w/ Wireless Charging System B

    Result: 

    A 

    See step  26

    Result: 

    B 

    See step  25

  25. INSPECT MOBILE WIRELESS CHARGER CRADLE ASSEMBLY 
    1. Disconnect the H116 mobile wireless charger cradle assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE MOBILE WIRELESS CHARGER CRADLE ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  26

  26. CONFIRM MODEL 

    Result

    Result Proceed to
    w/o Panoramic View Monitor System A
    w/ Panoramic View Monitor System B

    Result: 

    A 

    See step  28

    Result: 

    B 

    See step  27

  27. INSPECT FRONT WIDE VIEW SWITCH 
    1. Disconnect the H35 front wide view switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE FRONT WIDE VIEW SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  28

  28. CONFIRM MODEL 

    Result

    Result Proceed to
    except T24A-FTS AWD with Push Switch Type A
    for T24A-FTS AWD with Push Switch Type B

    Result: 

    A 

    See step  30

    Result: 

    B 

    See step  29

  29. INSPECT CRAWL CONTROL SWITCH ASSEMBLY 
    1. Disconnect the P10 crawl control switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE CRAWL CONTROL SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  30

  30. CONFIRM MODEL 

    Result

    Result Proceed to
    except T24A-FTS AWD with Dial Switch Type A
    for T24A-FTS AWD with Dial Switch Type B

    Result: 

    A 

    See step  32

    Result: 

    B 

    See step  31

  31. INSPECT NO. 1 PATTERN SELECT SWITCH ASSEMBLY 
    1. Disconnect the P10 No. 1 pattern select switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 1 PATTERN SELECT SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  32

  32. INSPECT AIR CONDITIONING CONTROL ASSEMBLY 
    1. Disconnect the H27 air conditioning control assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE AIR CONDITIONING CONTROL ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  33

  33. INSPECT VSC OFF SWITCH 
    1. Disconnect the P6 VSC off switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE VSC OFF SWITCH. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  34

  34. CONFIRM MODEL 

    Result

    Result Proceed to
    except T24A-FTS AWD A
    for T24A-FTS AWD B

    Result: 

    A 

    See step  36

    Result: 

    B 

    See step  35

  35. INSPECT DOWNHILL ASSIST CONTROL SWITCH 
    1. Disconnect the P4 downhill assist control switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DOWNHILL ASSIST CONTROL SWITCH. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  36

  36. INSPECT NO. 1 PATTERN SELECT SWITCH ASSEMBLY 
    1. Disconnect the P3 No. 1 pattern select switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 1 PATTERN SELECT SWITCH ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  37

  37. INSPECT SHIFT POSITION INDICATOR 
    1. Disconnect the P1 shift position indicator connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE SHIFT POSITION INDICATOR. Refer to  DISASSEMBLY [10/2022 - ] 

    Result: 

    NG 

    See step  38

  38. CONFIRM MODEL 

    Result

    Result Proceed to
    except A25A-FXS A
    for A25A-FXS B

    Result: 

    A 

    See step  40

    Result: 

    B 

    See step  39

  39. INSPECT PATTERN SELECT SWITCH ASSEMBLY 
    1. Disconnect the P9 pattern select switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE PATTERN SELECT SWITCH ASSEMBLY. Refer to  INSPECTION [12/2019 - ] 

    Result: 

    NG 

    See step  40

  40. INSPECT ELECTRIC PARKING BRAKE SWITCH ASSEMBLY 
    1. Disconnect the P2 electric parking brake switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE ELECTRIC PARKING BRAKE SWITCH ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  41

  41. CONFIRM MODEL 

    Result

    Result Proceed to
    except T24A-FTS A
    for T24A-FTS B

    Result: 

    A 

    See step  43

    Result: 

    B 

    See step  42

  42. INSPECT PATTERN SELECT SWITCH ASSEMBLY 
    1. Disconnect the P5 pattern select switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE PATTERN SELECT SWITCH ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  43

  43. CONFIRM MODEL 

    Result

    Result Proceed to
    except A25A-FXS AWD A
    for A25A-FXS AWD B

    Result: 

    A 

    See step  45

    Result: 

    B 

    See step  44

  44. INSPECT PATTERN SELECT SWITCH 
    1. Disconnect the P8 pattern select switch connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE PATTERN SELECT SWITCH. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  45

  45. INSPECT NO. 2 AIR CONDITIONING CONTROL ASSEMBLY 
    1. Disconnect the T2 No. 2 air conditioning control assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE NO. 2 AIR CONDITIONING CONTROL ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  46

  46. INSPECT HAZARD WARNING SIGNAL SWITCH ASSEMBLY 
    1. Disconnect the G6 hazard warning signal switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE HAZARD WARNING SIGNAL SWITCH ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    See step  47

  47. INSPECT DOOR CONTROL SWITCH ASSEMBLY 
    1. Disconnect the J4 door control switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE DOOR CONTROL SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  48

  48. INSPECT POWER WINDOW REGULATOR SWITCH ASSEMBLY 
    1. Disconnect the J3 power window regulator switch assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER WINDOW REGULATOR SWITCH ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  49

  49. INSPECT GLOVE BOX LIGHT ASSEMBLY 
    1. Disconnect the H70 glove box light assembly connector.
    2. Turn the light control switch to the TAIL position.
    3. Read the Data List according to the display on the GTS.

      Body Electrical > Power Distribution Box > Data List 

      Tester Display Measurement Item Range Normal Condition Diagnostic Note
      Panel Light Fuse Shut Off Status Panel light fuse condition OFF or ON OFF: Fuse not shut off
      ON: Fuse shut off      		 -

      Body Electrical > Power Distribution Box > Data List 

      Tester Display
      Panel Light Fuse Shut Off Status

      OK

      The Data List value displays "OFF".

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE GLOVE BOX LIGHT ASSEMBLY. Refer to  REMOVAL [12/2019 - ] 

    Result: 

    NG 

    See step  50

  50. CHECK HARNESS AND CONNECTOR 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K7-3 (ILL+) or 8G-22 - Body ground Always 10 kΩ or higher
      K2-3 (ILL+) or 8G-22 - Body ground Always 10 kΩ or higher
      R11-9 (ILLB) or 8C-53 - Body ground Always 10 kΩ or higher
      H34-6 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      H23-5 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      H30-6 (ILL+) or 8C-53 - Body ground*1 Always 10 kΩ or higher
      H38-6 (ILL+) or 8C-53 - Body ground*2 Always 10 kΩ or higher
      H41-6 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      J18-3 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      J22-12 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      z1-1 (IL+2) or 8C-53 - Body ground Always 10 kΩ or higher
      H24-14 (IL+2) or 8C-53 - Body ground Always 10 kΩ or higher
      H107-25 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      H131-6 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      H36-6 (ILL+) or 8C-53 - Body ground*3 Always 10 kΩ or higher
      H116-7 (TAIL) or 8C-53 - Body ground*4 Always 10 kΩ or higher
      H35-6 (ILL+) or 8C-53 - Body ground*5 Always 10 kΩ or higher
      P10-7 (ILL+) or 8C-53 - Body ground*6 Always 10 kΩ or higher
      P10-7 (ILL+) or 8C-53 - Body ground*7 Always 10 kΩ or higher
      H27-1 (ILL+) or 8C-53 - Body ground*8 Always 10 kΩ or higher
      H27-1 (ILL+) or H66-25 (IL41) - Body ground*9 Always 10 kΩ or higher
      P6-6 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      P4-6 (ILL+) or 8C-53 - Body ground*10 Always 10 kΩ or higher
      P3-1 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      P1-4 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      P9-6 (ILL+) or 8C-53 - Body ground*11 Always 10 kΩ or higher
      P2-9 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      P5-6 (ILL+) or 8C-53 - Body ground*12 Always 10 kΩ or higher
      P8-6 (ILL+) or 8C-53 - Body ground*13 Always 10 kΩ or higher
      T2-10 (ILL+) or 8C-53 - Body ground*8 Always 10 kΩ or higher
      T2-10 (ILL+) or H66-25 (IL41) - Body ground*9 Always 10 kΩ or higher
      G6-7 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      J4-3 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      J3-3 (ILL+) or 8C-53 - Body ground Always 10 kΩ or higher
      H70-2 (B) or 8C-53 - Body ground Always 10 kΩ or higher

      *1: w/ Power Back Door System

      *2: w/ Heated Steering Wheel System

      *3: w/ Accessory Power Outlet System

      *4: w/ Wireless Charging System

      *5: w/ Panoramic View Monitor System

      *6: for T24A-FTS AWD with Push Switch Type

      *7: for T24A-FTS AWD with Dial Switch Type

      *8: w/o Engine Stop and Start System

      *9: w/ Engine Stop and Start System

      *10: for T24A-FTS AWD

      *11: for A25A-FXS

      *12: for T24A-FTS

      *13: for A25A-FXS AWD

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE POWER DISTRIBUTION BOX ASSEMBLY. Refer to  REMOVAL [11/2023 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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