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Home >> Toyota >> 2021 >> Highlander LE, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 119 (Can Communication System (HV) - Circuit Tests (2 Of 9)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> Radio Receiver Assembly Communication Stop Mode [11/2023 - ] >> Procedure

Radio Receiver Assembly Communication Stop Mode [11/2023 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR OPEN IN CAN BUS LINES (RADIO AND DISPLAY RECEIVER ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the H108 radio and display receiver assembly connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H108-13 (CANH) - H108-14 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω
      GTY1178413Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINES OR CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY) 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the H107 radio and display receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H107-1 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      GTY1177934Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and Display Receiver Assembly)
    3. Reconnect the cable to the negative (-) auxiliary battery terminal.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H107-4 (+B1) - Body ground Ignition switch off 11 to 14 V
      H107-15 (IG) - Body ground Ignition switch ON 11 to 14 V
      H107-16 (ACC1) - Body ground Ignition switch ACC 11 to 14 V

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    REPLACE RADIO AND DISPLAY RECEIVER ASSEMBLY 

    Refer to REMOVAL [11/2023 - ]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

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