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HOMESERVICE MANUALSTOYOTA2020RAV4 XLE, AWDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTINFOTAINMENTTOYOTA AUDIO MULTIMEDIA SYSTEM - DIAGNOSTICS & SYMPTOM TESTSTOYOTA AUDIO MULTIMEDIA SYSTEMDCM DATA SIGNAL CIRCUIT BETWEEN RADIO RECEIVER AND DCM [10/2019 - 10/2022]PROCEDURE
2020 Toyota RAV4 XLE, AWD

DCM Data Signal Circuit between Radio Receiver and DCM [10/2019 - 10/2022]: Procedure

2020 Toyota RAV4 XLE, AWDSECTION Procedure
  1. CHECK HARNESS AND CONNECTOR (RADIO AND DISPLAY RECEIVER ASSEMBLY - DCM [TELEPHONE TRANSCEIVER ASSEMBLY]) 
    1. Disconnect the G1 radio and display receiver assembly connector.
    2. Disconnect the G131 DCM (telephone transceiver assembly) connector.
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G1-10 (USBV) - G131-15 (USBV) Always Below 1 Ω
      G1-11 (USBG) - G131-31 (USBG) Always Below 1 Ω
      G1-15 (VOT+) - G131-18 (VOR+) Always Below 1 Ω
      G1-16 (VOT-) - G131-34 (VOR-) Always Below 1 Ω
      G1-13 (VOR+) - G131-17 (VOT+) Always Below 1 Ω
      G1-14 (VOR-) - G131-33 (VOT-) Always Below 1 Ω
      G1-10 (USBV) - Body ground Always 10 kΩ or higher
      G1-11 (USBG) - Body ground Always 10 kΩ or higher
      G1-15 (VOT+) - Body ground Always 10 kΩ or higher
      G1-16 (VOT-) - Body ground Always 10 kΩ or higher
      G1-13 (VOR+) - Body ground Always 10 kΩ or higher
      G1-14 (VOR-) - Body ground Always 10 kΩ or higher
      G1-12 (SGND) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Result: 

    OK 

    See step  2

  2. CHECK TELEPHONE ANTENNA CORD (TELEPHONE ECU WIRE [TO TRANSCEIVER]) 
    1. Disconnect the G134 telephone antenna cord (telephone ECU wire [to transceiver]) connector from the DCM (telephone transceiver assembly).
      GTY912184Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to DCM [Telephone Transceiver Assembly])
      *b Front view of wire harness connector
      (to Telephone Antenna Cord [Telephone ECU Wire])
    2. Disconnect the GG7 telephone antenna cord (telephone ECU wire [to transceiver]) connector from the telephone antenna cord (telephone ECU wire).
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G134-1 (USB+) - GG7-1 Always Below 1 Ω
      G134-2 (USB-) - GG7-2 Always Below 1 Ω
      G134-3 (USBS) - GG7-3 Always Below 1 Ω
      G134-1 (USB+) - Body ground Always 10 kΩ or higher
      G134-2 (USB-) - Body ground Always 10 kΩ or higher
      G134-3 (USBS) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    NG 

    REPLACE TELEPHONE ANTENNA CORD (TELEPHONE ECU WIRE [TO TRANSCEIVER]). Refer to  REMOVAL [10/2019 - 10/2022] 

    Result: 

    OK 

    See step  3

  3. CHECK TELEPHONE ANTENNA CORD (TELEPHONE ECU WIRE) 
    1. Disconnect the G130 telephone antenna cord (telephone ECU wire) connector from the radio and display receiver assembly.
      GTY905242Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Radio and display receiver assembly)
      *b Front view of wire harness connector
      (to Telephone Antenna Cord (Telephone ECU Wire [to Transceiver]))
    2. Disconnect the GG7 telephone antenna cord (telephone ECU wire) connector from the telephone antenna cord (telephone ECU wire [to transceiver]).
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G130-1 (US4+) - GG7-1 Always Below 1 Ω
      G130-2 (US4-) - GG7-2 Always Below 1 Ω
      G130-3 (UGD4) - GG7-3 Always Below 1 Ω
      G130-2 (US4+) - Body ground Always 10 kΩ or higher
      G130-1 (US4-) - Body ground Always 10 kΩ or higher
      G130-3 (UGD4) - Body ground Always 10 kΩ or higher

      Result

      Proceed to
      OK
      NG

    Result: 

    OK 

    PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to  PROBLEM SYMPTOMS TABLE [10/2019 - 10/2022]  

    Result: 

    NG 

    REPLACE TELEPHONE ANTENNA CORD (TELEPHONE ECU WIRE). Refer to  REMOVAL [10/2019 - 10/2022] 

RENDER: 1.0x

NO RELATED

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