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Audio Receiver Assembly Communication Stop Mode (07/2015 -): Procedure

  1. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

      Result Proceed to
      for Navigation Receiver Type A
      for Radio and Display Type (w/ Parking Assist Monitor System with Parallel Parking Assist Function) B
      for Radio and Display Type (w/ Parking Assist Monitor System without Parallel Parking Assist Function) C

    Result:  B

    B 

    See step  4

    Result:  C

    C 

    See step  6

    Result:  A

    A 

    See step  2

  2. CHECK FOR OPEN IN CAN BUS LINES (RADIO RECEIVER ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the H97 radio receiver assembly connector.
      GTY652135Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H97-1 (CANH) - H97-2 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)

    Result:  NG

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (RADIO RECEIVER ASSEMBLY) 

    Result:  OK

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY660607Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H97-12 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    2. Reconnect the cable to the negative (-) battery terminal.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H97-16 (ACC1) - Body ground Engine switch on (ACC) 11 to 14 V
      H97-17 (+B1) - Body ground Engine switch off 11 to 14 V
      H97-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (07/2015 -) )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

  4. CHECK FOR OPEN IN CAN BUS LINES (RADIO RECEIVER ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the j1 radio receiver assembly connector.
      GTY669813Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      j1-1 (CANH) - j1-2 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)

    Result:  NG

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (RADIO RECEIVER ASSEMBLY) 

    Result:  OK

    OK 

    See step  5

  5. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY678262Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      j1-12 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    2. Reconnect the cable to the negative (-) battery terminal.
    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      j1-16 (ACC1) - Body ground Engine switch on (ACC) 11 to 14 V
      j1-17 (+B1) - Body ground Engine switch off 11 to 14 V
      j1-15 (IG) - Body ground Engine switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (07/2015 -) )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

  6. CHECK FOR OPEN IN CAN BUS LINES (RADIO RECEIVER ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the H89 radio receiver assembly connector.
      GTY674311Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H89-9 (CANH) - H89-10 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)

    Result:  NG

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (RADIO RECEIVER ASSEMBLY) 

    Result:  OK

    OK 

    See step  7

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the H175 radio receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY685206Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H175-7 (GND1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
    3. Reconnect the cable to the negative (-) battery terminal.
    4. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      H175-3 (ACC1) - Body ground Engine switch on (ACC) 11 to 14 V
      H175-4 (+B1) - Body ground Engine switch off 11 to 14 V
      H89-1 (IG) - Body ground Engine switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (07/2015 -) )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

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