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Home >> Toyota >> 2020 >> Corolla L >> Repair and Diagnosis >> External Pages >> Different car >> Section 324 (Meter / Gauge System (12.3 Inch) - Diagnostic Codes, Symptom Tests & Circuit Tests) >> METER / GAUGE SYSTEM (for 12.3 Inch Display) >> DTC B1510-87: Lost Communication with HUD Gigabit Video Interface Missing Message [09/2024 - ] >> Procedure

DTC B1510-87: Lost Communication with HUD Gigabit Video Interface Missing Message [09/2024 - ]: Procedure

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  1. CHECK HEADUP DISPLAY 
    1. Turn the settings of the headup display to ON and confirm the startup operation.

      Result

      Result  Proceed to
      The headup display starts A
      The headup display does not start B

    Result: 

    See step  6

    Result: 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (METER MIRROR SUB-ASSEMBLY - COMBINATION METER ASSEMBLY) 
    1. Disconnect the I247 meter mirror sub-assembly connector.
    2. Disconnect the I248 combination meter assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I248-1 (MGV+) - I247-2 (HGV+) Always Below 1 Ω
      I248-2 (MGV-) - I247-1 (HGV-) Always Below 1 Ω
      I248-3 (MGVG) - I247-3 (HGVG) Always Below 1 Ω
      I248-1 (MGV+) or I247-2 (HGV+) - Body ground Always 10 kΩ or higher
      I248-2 (MGV-) or I247-1 (HGV-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. REPLACE METER MIRROR SUB-ASSEMBLY 
    1. Replace the meter mirror sub-assembly with a new or known good one.

      HINT: 

      Refer to REMOVAL [09/2024 - ]

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  4

  4. CLEAR DTC 
    1. Clear the DTCs.

      Body Electrical > Combination Meter > Clear DTCs 

      Result

      Proceed to
      NEXT

    Result: 

    NEXT 

    See step  5

  5. CHECK FOR DTC 
    1. Check for DTCs.

      Body Electrical > Combination Meter > Trouble Codes 

      Result

      Result  Proceed to
      DTC B1510-87 is not output A
      DTC B1510-87 is output B

    Result: 

    END (METER MIRROR SUB-ASSEMBLY IS DEFECTIVE) 

    Result: 

    REPLACE COMBINATION METER ASSEMBLY 

    Refer to REMOVAL [09/2024 - ]

  6. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the I239 meter mirror sub-assembly connector.
    2. Measure the voltage according to the value(s) in the table below.
      GTY1252278Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Meter Mirror Sub-assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      I239-5 (B) - Body ground Ignition switch ON 11 to 14 V
      I239-10 (IG) - Body ground Ignition switch off Below 1 V
      I239-10 (IG) - Body ground Ignition switch ON 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (METER MIRROR SUB-ASSEMBLY - BODY GROUND) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      I239-6 (ES)- Body ground Always Below 1 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE METER MIRROR SUB-ASSEMBLY 

    Refer to REMOVAL [09/2024 - ]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR