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Home >> Toyota >> 2021 >> RAV4 Prime SE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> HEADUP Display System - Diagnostic Codes (PHEV) >> HEADUP Display System >> DTC B1321-87: Lost Communication with EMV Missing Message [06/2020 - 10/2022] >> Procedure

DTC B1321-87: Lost Communication with EMV Missing Message [06/2020 - 10/2022]: Procedure

  1. CHECK FOR DTC 
    1. Check the DTCs and output pattern according to the following table.

      Audio and Visual System: Refer to DTC CHECK / CLEAR [06/2020 - 10/2022]

      Navigation System: Refer to DTC CHECK / CLEAR [06/2020 - 10/2022]

      Body Electrical > Navigation System > Trouble Codes 

    2. Check the DTCs and output pattern according to the following table.

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

      Body Electrical > Combination Meter > Trouble Codes 

    3. Check the DTCs and output pattern according to the following table.

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

      Body Electrical > Head Up Display > Trouble Codes 

      Pattern DTC Output Part Name
      (Display on GTS)
      Radio and Display Receiver Assembly Combination Meter Assembly Meter Mirror Sub-assembly
      B1324 B1325 B1321-87 B1321-87
      Pattern 1 ◦ ◦ ◦ ◦
      Pattern 2 ◦ - ◦ -
      Pattern 3 - ◦ - ◦

      ◦: DTC is output

      -: DTC is not output

      Result

      Result Proceed to
      Pattern 1 A
      Pattern 2 B
      Pattern 3 C

    Result: 

    A 

    GO TO METER / GAUGE SYSTEM (B1321-87). Refer to  DTC B1321-87: Lost Communication with EMV Missing Message [06/2020 - 10/2022] 

    Result: 

    B 

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

    Result: 

    C 

    See step  2

  2. CHECK CAN WIRE (METER MIRROR SUB-ASSEMBLY) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the meter mirror sub-assembly connector.
      GTY975290Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Meter Mirror Sub-assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G136-14 (TX+) - G136-15 (TX-) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [06/2020 - 12/2021]  , or refer to  REMOVAL [12/2021 - 10/2022] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN WIRE OR CONNECTOR