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Home >> Toyota >> 2025 >> RAV4 Plug-In Hybrid XSE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) (PHEV) >> Meter / Gauge System >> DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [12/2021 - 10/2022] >> Procedure

DTC B1508-19: Turn Signal/Hazard Flasher Circuit Current Above Threshold [12/2021 - 10/2022]: Procedure

  1. INSPECT LIGHTS 
    1. Inspect the illumination of each turn signal light.

      Result

      Result Proceed to
      Front turn signal light LH does not blink. A
      Front turn signal light RH does not blink. B
      Rear turn signal light LH and side turn signal light LH do not blink. C
      Rear turn signal light RH and side turn signal light RH do not blink. D

    Result: 

    B 

    See step  4

    Result: 

    C 

    See step  6

    Result: 

    D 

    See step  10

    Result: 

    A 

    See step  2

  2. CHECK FRONT TURN SIGNAL LIGHT SOCKET LH 
    1. Disconnect the A123 front turn signal light socket LH connector.
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET LH. Refer to  DISASSEMBLY [12/2021 - ] 

    Result: 

    A 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT TURN SIGNAL LIGHT SOCKET LH) 
    1. Disconnect the G19 combination meter assembly connector.
    2. Disconnect the A123 front turn signal light socket LH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G19-1 (LL) or A123-4 (B) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [06/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  4. CHECK FRONT TURN SIGNAL LIGHT SOCKET RH 
    1. Disconnect the A122 front turn signal light socket RH connector.
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    REPLACE FRONT TURN SIGNAL LIGHT SOCKET RH. Refer to  DISASSEMBLY [12/2021 - ] 

    Result: 

    A 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY - FRONT TURN SIGNAL LIGHT SOCKET RH) 
    1. Disconnect the G19 combination meter assembly connector.
    2. Disconnect the A122 front turn signal light socket RH connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G19-2 (LR) or A122-4 (B) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [06/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  6. CHECK REAR COMBINATION LIGHT SOCKET AND WIRE LH 
    1. Disconnect the N18 rear combination light socket and wire LH connector.
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE LH. Refer to  DISASSEMBLY [06/2020 - ] 

    Result: 

    A 

    See step  7

  7. CHECK OUTER REAR VIEW MIRROR ASSEMBLY LH 
    1. Disconnect the J13*1 or J14*2 outer rear view mirror assembly LH connector.
      1. *1: w/ Panoramic View Monitor System
      2. *2: w/o Panoramic View Monitor System
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    See step  9

    Result: 

    A 

    See step  8

  8. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY SIDE TURN SIGNAL CIRCUIT) 
    1. *1: w/ Panoramic View Monitor System
    2. *2: w/o Panoramic View Monitor System
    1. Disconnect the G19 combination meter assembly connector.
    2. Disconnect the N18 rear combination light socket and wire LH connector.
    3. Disconnect the J13*1 or J14*2 outer rear view mirror assembly LH connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      W/ PANORAMIC VIEW MONITOR SYSTEM

      Tester Connection Condition Specified Condition
      G19-5 (TRNL) or N18-4 (TRN) or J13-1 (B) - Body ground Always 10 kΩ or higher
      W/O PANORAMIC VIEW MONITOR SYSTEM

      Tester Connection Condition Specified Condition
      G19-5 (TRNL) or N18-4 (TRN) or J14-10 (B) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [06/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  9. CHECK SIDE TURN SIGNAL LIGHT ASSEMBLY LH 
    1. Remove the side turn signal light assembly LH.

      Refer to REMOVAL [06/2020 - ]

    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    A 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY LH. Refer to  REMOVAL [06/2020 - ] 

    Result: 

    B 

    REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY LH. Refer to  REMOVAL [06/2020 - ] 

  10. CHECK REAR COMBINATION LIGHT SOCKET AND WIRE RH 
    1. Disconnect the M14 rear combination light socket and wire RH connector.
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    REPLACE REAR COMBINATION LIGHT SOCKET AND WIRE RH. Refer to  DISASSEMBLY [06/2020 - ] 

    Result: 

    A 

    See step  11

  11. CHECK OUTER REAR VIEW MIRROR ASSEMBLY RH 
    1. Disconnect the I13*1 or I14*2 outer rear view mirror assembly RH connector.
      1. *1: w/ Panoramic View Monitor System
      2. *2: w/o Panoramic View Monitor System
    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    B 

    See step  13

    Result: 

    A 

    See step  12

  12. CHECK HARNESS AND CONNECTOR (COMBINATION METER ASSEMBLY SIDE TURN SIGNAL CIRCUIT) 
    1. *1: w/ Panoramic View Monitor System
    2. *2: w/o Panoramic View Monitor System
    1. Disconnect the G19 combination meter assembly connector.
    2. Disconnect the M14 rear combination light socket and wire RH connector.
    3. Disconnect the I13*1 or I14*2 outer rear view mirror assembly RH connector.
    4. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      W/ PANORAMIC VIEW MONITOR SYSTEM

      Tester Connection Condition Specified Condition
      G19-6 (TRNR) or M14-4 (TRN) or I13-1 (B) - Body ground Always 10 kΩ or higher
      W/O PANORAMIC VIEW MONITOR SYSTEM

      Tester Connection Condition Specified Condition
      G19-6 (TRNR) or M14-4 (TRN)) or I14-10 (B) - Body ground. Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE COMBINATION METER ASSEMBLY. Refer to  REMOVAL [06/2020 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

  13. CHECK SIDE TURN SIGNAL LIGHT ASSEMBLY RH 
    1. Remove the side turn signal light assembly RH.

      Refer to REMOVAL [12/2021 - ]

    2. Clear the DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTC.

      Refer to DTC CHECK / CLEAR [06/2020 - ]

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result Proceed to
      DTC B1508-19 is output. A
      DTC B1507-18 is output. B

    Result: 

    A 

    REPLACE OUTER REAR VIEW MIRROR ASSEMBLY RH. Refer to  REMOVAL [06/2020 - ] 

    Result: 

    B 

    REPLACE SIDE TURN SIGNAL LIGHT ASSEMBLY RH. Refer to  REMOVAL [06/2020 - ] 

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