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DTC B1567: HUD Disconnected [10/2014 - 09/2017]: Procedure

  1. CHECK DTC 
    1. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Clear DTCs 

    2. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    USE SIMULATION METHOD TO CHECK. Refer to  HOW TO PROCEED WITH TROUBLESHOOTING [10/2014 - 09/2017] 

    Result: 

    NG 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - BATTERY AND BODY GROUND) 
    1. Disconnect the combination meter mirror ECU connector.
      GTY520333Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Mirror ECU)
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J5-4 (ES) - Body ground Always Below 1 Ω
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      J5-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      J5-2 (B) - Body ground Always 11 to 14 V
      J5-5 (ACC) - Body ground Engine switch on (ACC) 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  3

  3. INSPECT RADIO RECEIVER ASSEMBLY 
    1. Remove the radio receiver assembly.

      Refer to REMOVAL [10/2014 - 09/2017]

      GTY499956Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      45 (TX3+) - 46 (TX3-) Always 60 to 80 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017] 

    Result: 

    OK 

    See step  4

  4. CHECK HARNESS AND CONNECTOR (COMBINATION METER MIRROR ECU - MULTI-DISPLAY ASSEMBLY) 
    1. Disconnect the J5 combination meter mirror ECU connector.
    2. Disconnect the I42 multi-display assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      J5-12 (MPX1) - I42-6 (TX1+) Always Below 1 Ω
      J5-13 (MPX2) - I42-18 (TX1-) Always Below 1 Ω
      J5-12 (MPX1) or I42-6 (TX1+) - Body ground Always 10 kΩ or higher
      J5-13 (MPX2) or I42-18 (TX1-) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  5

  5. CHECK COMBINATION METER MIRROR ECU 
    1. Replace the combination meter mirror ECU.

      Refer to REMOVAL [10/2014 - 09/2017]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Clear DTCs 

    3. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (COMBINATION METER MIRROR ECU IS DEFECTIVE) 

    Result: 

    NG 

    See step  6

  6. CHECK MULTI-DISPLAY ASSEMBLY 
    1. Replace the multi-display assembly.

      Refer to REMOVAL [10/2014 - 09/2017]

    2. Clear the DTCs.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Clear DTCs 

    3. Recheck for DTCs and check that no DTCs are output.

      Refer to DTC CHECK / CLEAR [10/2014 - 09/2017]

      Body Electrical > Navigation System > Trouble Codes 

      OK

      No DTCs are output.

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    END (MULTI-DISPLAY ASSEMBLY IS DEFECTIVE) 

    Result: 

    NG 

    REPLACE RADIO RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2014 - 09/2017]