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Home >> Toyota >> 2021 >> RAV4 Prime XSE >> Repair and Diagnosis >> Accessories & Equipment >> Gauges & Instrument Panels >> Meter / Gauge System - Diagnostic Codes (1 Of 2) (PHEV) >> Meter / Gauge System >> DTC B1321-87: Lost Communication with EMV Missing Message [10/2022 - ] >> Procedure

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

  1. CHECK VEHICLE TYPE 
    1. Check vehicle condition.

      Result

      Result  Proceed to 
      for 7 Inch Multi-information Display Type A
      for 12.3 Inch Multi-information Display Type B

    Result: 

    B 

    See step  12

    Result: 

    A 

    See step  2

  2. CHECK VEHICLE TYPE 
    1. Check vehicle condition.

      Result

      Result  Proceed to 
      w/ Headup Display System A
      w/o Headup Display System B

    Result: 

    B 

    See step  8

    Result: 

    A 

    See step  3

  3. CHECK FOR DTC 
    1. Check if meter/gauge system DTCs are output.

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

      Body Electrical > Combination Meter > Trouble Codes 

    2. Check if audio and visual system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

    3. Check if headup display system system DTCs are output.

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

      Body Electrical > Head Up Display > Trouble Codes 

    4. Check the DTCs and output pattern according to the following table.
      Pattern DTC Output GTS Display Name
      Combination Meter Navigation System Head up Display
      B1321-87 U11D0-87 U11D1-87 B1321-87
      Pattern 1 ◦ ◦ ◦ ◦
      Pattern 2 ◦ ◦ - -
      Pattern 3 ◦ - - -
      Pattern 4 ◦ - - ◦

      ◦: DTC is output.

      -: DTC is not output

      Result

      Result Proceed to
      Pattern 1 A
      Pattern 2 B
      Pattern 3 C
      Pattern 4 D

    Result: 

    B 

    See step  7

    Result: 

    C 

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

    Result: 

    D 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    A 

    See step  4

  4. CHECK FOR METER MIRROR SUB-ASSEMBLY 
    1. Disconnect the G136 meter mirror sub-assembly connector.
    2. Clear the DTCs.

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

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTCs.

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

      Body Electrical > Combination Meter > Trouble Codes 

      HINT: 

      • If DTC B1321-87 is output from the meter / gauge system and is not output from the audio and visual system or headup display system, it can be suspected that the combination meter assembly has an internal malfunction.
      • If DTC B1321-87 is output from the headup display system or meter / gauge system and is not output from the audio and visual system, it can be suspected that the radio and display receiver assembly has an internal malfunction.

      Result

      Result Proceed to
      DTC B1321-87 is output. A
      DTC B1321-87 is not output. B

    Result: 

    B 

    REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    A 

    See step  5

  5. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY974995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G18-27 (MSCH) - G18-10 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G18-27 (MSCH) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G18-10 (MSCL) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G18-27 (MSCH) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G18-10 (MSCL) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    See step  6

  6. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the radio and display receiver assembly connector.
      GTY1115950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G182-11 (CNH1) - G182-12 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G182-11 (CNH1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-12 (CNL1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-11 (CNH1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G182-12 (CNL1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  7. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY975226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G18-27 (MSCH) - G18-10 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  8. CHECK FOR DTC 
    1. Check if meter/gauge system DTCs are output.

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

      Body Electrical > Combination Meter > Trouble Codes 

    2. Check if audio and visual system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

    3. Check the DTCs and output pattern according to the following table.
      Pattern DTC Output GTS Display Name
      Combination Meter Navigation System
      B1321-87 U11D0-87
      Pattern 1 ◦ ◦
      Pattern 2 ◦ -

      ◦: DTC is output.

      -: DTC is not output

      Result

      Result Proceed to
      Pattern 1 A
      Pattern 2 B

    Result: 

    B 

    See step  11

    Result: 

    A 

    See step  9

  9. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY974995Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G18-27 (MSCH) - G18-10 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G18-27 (MSCH) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G18-10 (MSCL) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G18-27 (MSCH) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G18-10 (MSCL) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    See step  10

  10. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the radio and display receiver assembly connector.
      GTY1115950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G182-11 (CNH1) - G182-12 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G182-11 (CNH1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-12 (CNL1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-11 (CNH1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G182-12 (CNL1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  11. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Disconnect the combination meter assembly connector.
      GTY975226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
    2. Using an oscilloscope, check the waveform.

      OK

      Tester Connection Condition Tool Setting Specified Condition
      G18-27 (MSCH) - G18-10 (MSCL) Ignition switch ON 1 V/DIV., 100 μs./DIV. Pulse generation

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

  12. CHECK VEHICLE TYPE 
    1. Check vehicle condition.

      Result

      Result  Proceed to 
      w/ Headup Display System A
      w/o Headup Display System B

    Result: 

    B 

    See step  18

    Result: 

    A 

    See step  13

  13. CHECK FOR DTC 
    1. Check if meter/gauge system DTCs are output.

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

      Body Electrical > Combination Meter > Trouble Codes 

    2. Check if audio and visual system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

    3. Check if headup display system system DTCs are output.

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

      Body Electrical > Head Up Display > Trouble Codes 

    4. Check the DTCs and output pattern according to the following table.
      Pattern DTC Output GTS Display Name
      Combination Meter Navigation System Head up Display
      B1321-87 U11D0-87 U11D1-87 B1321-87
      Pattern 1 ◦ ◦ ◦ ◦
      Pattern 2 ◦ ◦ - -
      Pattern 3 ◦ - - -
      Pattern 4 ◦ - - ◦

      ◦: DTC is output.

      -: DTC is not output

      Result

      Result Proceed to
      Pattern 1 A
      Pattern 2 B
      Pattern 3 C
      Pattern 4 D

    Result: 

    B 

    See step  17

    Result: 

    C 

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

    Result: 

    D 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    A 

    See step  14

  14. CHECK FOR METER MIRROR SUB-ASSEMBLY 
    1. Disconnect the G136 meter mirror sub-assembly connector.
    2. Clear the DTCs.

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

      Body Electrical > Combination Meter > Clear DTCs 

    3. Check for DTCs.

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

      Body Electrical > Combination Meter > Trouble Codes 

      HINT: 

      • If DTC B1321-87 is output from the meter / gauge system and is not output from the audio and visual system or headup display system, it can be suspected that the combination meter assembly has an internal malfunction.
      • If DTC B1321-87 is output from the headup display system or meter / gauge system and is not output from the audio and visual system, it can be suspected that the radio and display receiver assembly has an internal malfunction.

      Result

      Result Proceed to
      DTC B1321-87 is output. A
      DTC B1321-87 is not output. B

    Result: 

    B 

    REPLACE METER MIRROR SUB-ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    A 

    See step  15

  15. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY1109602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G184-32 (MSCH) - G184-15 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G184-32 (MSCH) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G184-15 (MSCL) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G184-32 (MSCH) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G184-15 (MSCL) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    See step  16

  16. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the radio and display receiver assembly connector.
      GTY1115950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G182-11 (CNH1) - G182-12 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G182-11 (CNH1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-12 (CNL1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-11 (CNH1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G182-12 (CNL1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  17. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY1113170Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G184-32 (MSCH) - G184-15 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  18. CHECK FOR DTC 
    1. Check if meter/gauge system DTCs are output.

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

      Body Electrical > Combination Meter > Trouble Codes 

    2. Check if audio and visual system DTCs are output.

      Body Electrical > Navigation System > Trouble Codes 

    3. Check the DTCs and output pattern according to the following table.
      Pattern DTC Output GTS Display Name
      Combination Meter Navigation System
      B1321-87 U11D0-87
      Pattern 1 ◦ ◦
      Pattern 2 ◦ -

      ◦: DTC is output.

      -: DTC is not output

      Result

      Result Proceed to
      Pattern 1 A
      Pattern 2 B

    Result: 

    B 

    See step  21

    Result: 

    A 

    See step  19

  19. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the combination meter assembly connector.
      GTY1109602Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G184-32 (MSCH) - G184-15 (MSCL) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G184-32 (MSCH) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G184-15 (MSCL) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G184-32 (MSCH) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G184-15 (MSCL) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    See step  20

  20. CHECK CAN WIRE 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the radio and display receiver assembly connector.
      GTY1115950Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
      *b DLC3
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G182-11 (CNH1) - G182-12 (CNL1) Cable disconnected from negative (-) auxiliary battery terminal 108 to 132 Ω
      G182-11 (CNH1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-12 (CNL1) - G114-4 (CG) Cable disconnected from negative (-) auxiliary battery terminal 200 Ω or higher
      G182-11 (CNH1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher
      G182-12 (CNL1) - G114-16 (BAT) Cable disconnected from negative (-) auxiliary battery terminal 6 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

    Result: 

    NG 

    REPAIR OR REPLACE CAN MAIN WIRE OR CONNECTOR 

  21. CHECK RADIO AND DISPLAY RECEIVER ASSEMBLY 
    1. Disconnect the combination meter assembly connector.
      GTY1113170Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Combination Meter Assembly)
    2. Using an oscilloscope, check the waveform.

      OK

      Tester Connection Condition Tool Setting Specified Condition
      G184-32 (MSCH) - G184-15 (MSCL) Ignition switch ON 1 V/DIV., 100 μs./DIV. Pulse generation

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

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

    Result: 

    NG 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY. Refer to  REMOVAL [10/2022 - ] 

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