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Home >> Lexus >> 2025 >> NX 350 Base >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) >> Meter / Gauge System >> DTC B1507-18: Turn Signal Light Circuit Current Below Threshold [03/2022 - ] >> Procedure

DTC B1507-18: Turn Signal Light Circuit Current Below Threshold [03/2022 - ]: Procedure

  1. CHECK SYMPTOMS 
    1. Operate the turn signal switch and check the problem symptoms.

      Result

      Result Proceed to
      Front turn signal light (LH side) does not blink A
      Rear turn signal light (LH side) does not blink B
      Front turn signal light (RH side) does not blink C
      Rear turn signal light (RH side) does not blink D

    Result: 

    B 

    See step  18

    Result: 

    C 

    See step  24

    Result: 

    D 

    See step  40

    Result: 

    A 

    See step  2

  2. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      except TMMC Made A
      for TMMC Made B

    Result: 

    B 

    See step  13

    Result: 

    A 

    See step  3

  3. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Automatic Headlight Beam Level Control System A
      w/o Automatic Headlight Beam Level Control System B

    Result: 

    B 

    See step  11

    Result: 

    A 

    See step  4

  4. INSPECT HEADLIGHT ECU SUB-ASSEMBLY LH 

    Pre-procedure1

    1. Remove the headlight ECU sub-assembly LH from the headlight assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

      Procedure1

    2. Measure the resistance according to the value(s) in the table below.
      GTY1071259Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Headlight ECU Sub-assembly LH)      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      A49-11 (TNS) - B-20 (TURN+) Always Below 1 Ω
      A49-12 (GND) - B-6 (TURN-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. None

    Result: 

    NG 

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY LH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    OK 

    See step  5

  5. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for LED Type Turn Signal Light A
      for Bulb Type Turn Signal Light B

    Result: 

    B 

    See step  8

    Result: 

    A 

    See step  6

  6. CHECK TURN SIGNAL LIGHT (HEADLIGHT TURN SIGNAL LED UNIT LH) 

    Pre-procedure1

    1. Remove the headlight turn signal LED unit LH from the headlight unit assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight turn signal LED unit RH from the headlight unit assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight turn signal LED unit LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT TURN SIGNAL LED UNIT LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  7

  7. CHECK TURN SIGNAL LIGHT (HEADLIGHT UNIT ASSEMBLY LH) 

    Pre-procedure1

    1. Remove the headlight unit assembly LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight unit assembly RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight unit assembly LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    A 

    See step  10

    Result: 

    B 

    REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to  DISASSEMBLY [03/2022 - ] 

  8. CHECK TURN SIGNAL LIGHT (FRONT TURN SIGNAL LIGHT SOCKET AND WIRE LH) 

    Pre-procedure1

    1. Remove the front turn signal light socket and wire LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the front turn signal light socket and wire RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the front turn signal light socket and wire LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET AND WIRE LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  9

  9. CHECK TURN SIGNAL LIGHT (HEADLIGHT UNIT ASSEMBLY LH) 

    Pre-procedure1

    1. Remove the headlight unit assembly LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight unit assembly RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight unit assembly LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT UNIT ASSEMBLY LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  10

  10. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A49 headlight assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A49-11 (TNS) - D22-5 (LL) Always Below 1 Ω
      A49-12 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  11. CHECK TURN SIGNAL LIGHT (FRONT TURN SIGNAL LIGHT SOCKET LH) 

    Pre-procedure1

    1. Remove the front turn signal light socket LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the front turn signal light socket RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the front turn signal light socket LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A60 headlight assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A60-1 (B) - D22-5 (LL) Always Below 1 Ω
      A60-2 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  13. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Automatic Headlight Beam Level Control System A
      w/o Automatic Headlight Beam Level Control System B

    Result: 

    B 

    See step  16

    Result: 

    A 

    See step  14

  14. CHECK TURN SIGNAL LIGHT (HEADLIGHT ASSEMBLY LH) 

    Pre-procedure1

    1. Remove the headlight assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the headlight assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the headlight assembly LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT ASSEMBLY LH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  15

  15. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A49 headlight assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A49-11 (TNS) - D22-5 (LL) Always Below 1 Ω
      A49-12 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  16. CHECK TURN SIGNAL LIGHT (HEADLIGHT ASSEMBLY LH) 

    Pre-procedure1

    1. Remove the headlight assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the headlight assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the headlight assembly LH with RH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (LH side) does not blink)      		 A
      Front turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT ASSEMBLY LH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  17

  17. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A60 headlight assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A60-1 (B) - D22-5 (LL) Always Below 1 Ω
      A60-2 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  18. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      except TMMC Made A
      for TMMC Made B

    Result: 

    B 

    See step  22

    Result: 

    A 

    See step  19

  19. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT SOCKET AND WIRE LH) 

    Pre-procedure1

    1. Remove the rear combination light socket and wire LH from the rear combination light assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the rear combination light socket and wire RH from the rear combination light assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the rear combination light socket and wire LH with RH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (LH side) does not blink)      		 A
      Rear turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  20

  20. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT LENS AND BODY LH) 

    Pre-procedure1

    1. Remove the rear combination light lens and body LH from the rear combination light assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the rear combination light lens and body RH from the rear combination light assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the rear combination light lens and body LH with RH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (LH side) does not blink)      		 A
      Rear turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT LENS AND BODY LH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  21

  21. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the G109 rear combination light assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      G109-6 (TRN) - D22-22 (TRNL) Always Below 1 Ω
      G109-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  22. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT ASSEMBLY LH) 

    Pre-procedure1

    1. Remove the rear combination light assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the rear combination light assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the rear combination light assembly LH with RH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (LH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (LH side) does not blink)      		 A
      Rear turn signal light (LH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT ASSEMBLY LH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  23

  23. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY LH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the G109 rear combination light assembly LH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      G109-6 (TRN) - D22-22 (TRNL) Always Below 1 Ω
      G109-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  24. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      except TMMC Made A
      for TMMC Made B

    Result: 

    B 

    See step  35

    Result: 

    A 

    See step  25

  25. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Automatic Headlight Beam Level Control System A
      w/o Automatic Headlight Beam Level Control System B

    Result: 

    B 

    See step  33

    Result: 

    A 

    See step  26

  26. INSPECT HEADLIGHT ECU SUB-ASSEMBLY RH 

    Pre-procedure1

    1. Remove the headlight ECU sub-assembly RH from the headlight assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

      Procedure1

    2. Measure the resistance according to the value(s) in the table below.
      GTY1068449Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Component without harness connected
      (Headlight ECU Sub-assembly RH)      		 - -

      Standard Resistance

      Tester Connection Condition Specified Condition
      A50-11 (TNS) - C-20 (TURN+) Always Below 1 Ω
      A50-12 (GND) - C-6 (TURN-) Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    3. None

    Result: 

    NG 

    REPLACE HEADLIGHT ECU SUB-ASSEMBLY RH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    OK 

    See step  27

  27. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      for LED Type Turn Signal Light A
      for Bulb Type Turn Signal Light B

    Result: 

    B 

    See step  30

    Result: 

    A 

    See step  28

  28. CHECK TURN SIGNAL LIGHT (HEADLIGHT TURN SIGNAL LED UNIT RH) 

    Pre-procedure1

    1. Remove the headlight turn signal LED unit RH from the headlight unit assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight turn signal LED unit LH from the headlight unit assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight turn signal LED unit RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT TURN SIGNAL LED UNIT RH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  29

  29. CHECK TURN SIGNAL LIGHT (HEADLIGHT UNIT ASSEMBLY RH) 

    Pre-procedure1

    1. Remove the headlight unit assembly RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight unit assembly LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight unit assembly RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    A 

    See step  32

    Result: 

    B 

    REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to  DISASSEMBLY [03/2022 - ] 

  30. CHECK TURN SIGNAL LIGHT (FRONT TURN SIGNAL LIGHT SOCKET AND WIRE RH) 

    Pre-procedure1

    1. Remove the front turn signal light socket and wire RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the front turn signal light socket and wire LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the front turn signal light socket and wire RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET AND WIRE RH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  31

  31. CHECK TURN SIGNAL LIGHT (HEADLIGHT UNIT ASSEMBLY RH) 

    Pre-procedure1

    1. Remove the headlight unit assembly RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the headlight unit assembly LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the headlight unit assembly RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT UNIT ASSEMBLY RH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  32

  32. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A50 headlight assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A50-11 (TNS) - D22-6 (LR) Always Below 1 Ω
      A50-12 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  33. CHECK TURN SIGNAL LIGHT (FRONT TURN SIGNAL LIGHT SOCKET RH) 

    Pre-procedure1

    1. Remove the front turn signal light socket RH from the headlight assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the front turn signal light socket LH from the headlight assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the front turn signal light socket RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET RH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  34

  34. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A59 headlight assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A59-1 (B) - D22-6 (LR) Always Below 1 Ω
      A59-2 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  35. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      w/ Automatic Headlight Beam Level Control System A
      w/o Automatic Headlight Beam Level Control System B

    Result: 

    B 

    See step  38

    Result: 

    A 

    See step  36

  36. CHECK TURN SIGNAL LIGHT (HEADLIGHT ASSEMBLY RH) 

    Pre-procedure1

    1. Remove the headlight assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the headlight assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the headlight assembly RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT ASSEMBLY RH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  37

  37. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A50 headlight assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A50-11 (TNS) - D22-6 (LR) Always Below 1 Ω
      A50-12 (GND) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  38. CHECK TURN SIGNAL LIGHT (HEADLIGHT ASSEMBLY RH) 

    Pre-procedure1

    1. Remove the headlight assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the headlight assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the headlight assembly RH with LH and connect the connectors.

      Procedure1

    4. Check the front turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Front turn signal light (RH side) does not blink)      		 A
      Front turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE HEADLIGHT ASSEMBLY RH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  39

  39. CHECK HARNESS AND CONNECTOR (HEADLIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the A59 headlight assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      A59-1 (B) - D22-6 (LR) Always Below 1 Ω
      A59-2 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  40. CONFIRM MODEL 
    1. Choose the model to be inspected.

      Result

      Result Proceed to
      except TMMC Made A
      for TMMC Made B

    Result: 

    B 

    See step  44

    Result: 

    A 

    See step  41

  41. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT SOCKET AND WIRE RH) 

    Pre-procedure1

    1. Remove the rear combination light socket and wire RH from the rear combination light assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the rear combination light socket and wire LH from the rear combination light assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the rear combination light socket and wire RH with LH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (RH side) does not blink)      		 A
      Rear turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE RH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  42

  42. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT LENS AND BODY RH) 

    Pre-procedure1

    1. Remove the rear combination light lens and body RH from the rear combination light assembly RH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    2. Remove the rear combination light lens and body LH from the rear combination light assembly LH.

      HINT: 

      Refer to DISASSEMBLY [03/2022 - ]

    3. Interchange the rear combination light lens and body RH with LH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (RH side) does not blink)      		 A
      Rear turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT LENS AND BODY RH. Refer to  DISASSEMBLY [03/2022 - ] 

    Result: 

    A 

    See step  43

  43. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the G18 rear combination light assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      G18-6 (TRN) - D22-21 (TRNR) Always Below 1 Ω
      G18-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  44. CHECK TURN SIGNAL LIGHT (REAR COMBINATION LIGHT ASSEMBLY RH) 

    Pre-procedure1

    1. Remove the rear combination light assembly RH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    2. Remove the rear combination light assembly LH.

      HINT: 

      Refer to REMOVAL [11/2021 - ]

    3. Interchange the rear combination light assembly RH with LH and connect the connectors.

      Procedure1

    4. Check the rear turn signal light (RH side) operates normally.

      Result

      Result Proceed to
      Problem symptoms do not change
      (Rear turn signal light (RH side) does not blink)      		 A
      Rear turn signal light (RH side) operates normally B

      Post-procedure1

    5. None

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT ASSEMBLY RH. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    A 

    See step  45

  45. CHECK HARNESS AND CONNECTOR (REAR COMBINATION LIGHT ASSEMBLY RH - COMBINATION METER ASSEMBLY AND BODY GROUND) 

    Pre-procedure1

    1. Disconnect the G18 rear combination light assembly RH connector.
    2. Disconnect the D22 combination meter assembly connector.

      Procedure1

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

      Standard Resistance

      Tester Connection Condition Specified Condition
      G18-6 (TRN) - D22-21 (TRNR) Always Below 1 Ω
      G18-1 (E) - Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

      Post-procedure1

    4. None

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [11/2021 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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