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Home >> Toyota >> 2020 >> RAV4 XLE, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 54 (Can Communication System (HV) - Circuit Tests (2 Of 6)) >> CAN COMMUNICATION SYSTEM (for HV Model) >> DCM Communication Stop Mode [10/2019 - ] >> Procedure

DCM Communication Stop Mode [10/2019 - ]: Procedure

WARNING: This page is about a different variant/trim than selected.
  1. CHECK FOR OPEN IN CAN BUS WIRE (DCM [TELEPHONE TRANSCEIVER ASSEMBLY] BRANCH WIRE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the DCM (telephone transceiver assembly) connector.
      GTY889082Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to DCM [Telephone Transceiver Assembly])
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G131-25 (CANP) - G131-24 (CANN) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Proceed to 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH WIRE OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G131-20 (E) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      GTY889080Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to DCM [Telephone Transceiver Assembly])
    2. Reconnect the cable to the negative (-) auxiliary battery terminal.
      NOTE:

      When disconnecting the cable, some systems need to be initialized after the cable is reconnected.

      Refer to INITIALIZATION [10/2019 - 06/2020] , or refer to INITIALIZATION [06/2020 - 08/2020] , or refer to INITIALIZATION [08/2020 - 12/2021] , or refer to INITIALIZATION [12/2021 - 10/2022] , or refer to INITIALIZATION [10/2022 - 10/2023] , or refer to INITIALIZATION [10/2023 - ]

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      G131-1 (+B) - Body ground Ignition switch off 11 to 14 V
      G131-19 (IG2) - Body ground Ignition switch ON 11 to 14 V
      Ignition switch off Below 1 V

      Result

      Proceed to 
      OK
      NG

    Result: 

    OK 

    REPLACE DCM (TELEPHONE TRANSCEIVER ASSEMBLY) 

    Refer to REMOVAL [10/2019 - 10/2022] , or refer to REMOVAL [10/2022 - ]

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

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