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Audio Receiver Assembly Communication Stop Mode (2016 - 2017): Procedure

  1. CHECK VEHICLE TYPE 
    1. Check vehicle type.

      Result

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

    Result:  B

    See step  B

    Result:  C

    See step  C

    Result:  A

    See step  A

  2. CHECK FOR OPEN IN CAN BUS LINES (RADIO RECEIVER ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the H89 radio receiver assembly connector.
      GTY683666Courtesy 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 (-) auxiliary 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

    See step  3

  3. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Disconnect the H168 radio receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY672944Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H168-7 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    3. Connect 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
      H168-3 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      H168-4 (+B1) - Body ground Power switch off 11 to 14 V
      H89-1 (IG) - Body ground Power switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (2016 - 2017) )

    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 (-) auxiliary battery terminal.
    2. Disconnect the H97 radio receiver assembly connector.
      GTY650309Courtesy 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 (-) auxiliary 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

    See step  5

  5. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY679723Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

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

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    2. Connect the cable to the negative (-) auxiliary 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 Power switch on (ACC) 11 to 14 V
      H97-17 (+B1) - Body ground Power switch off 11 to 14 V
      H97-15 (IG) - Body ground Power switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (2016 - 2017) )

    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 (-) auxiliary battery terminal.
    2. Disconnect the h1 radio receiver assembly connector.
      GTY667614Courtesy 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
      h1-1 (CANH) - h1-2 (CANL) Cable disconnected from negative (-) auxiliary 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

    See step  7

  7. CHECK HARNESS AND CONNECTOR (POWER SOURCE CIRCUIT) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY682989Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      h1-12 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
      TEXT IN ILLUSTRATION

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

      Standard Voltage

      Tester Connection Condition Specified Condition
      h1-16 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      h1-17 (+B1) - Body ground Power switch off 11 to 14 V
      h1-15 (IG) - Body ground Power switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (Refer to REMOVAL (2016 - 2017) )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

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