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Radio Receiver Assembly Communication Stop Mode [08/2014 - ]: Procedure

  1. CHECK VEHICLE TYPE 
    1. Check vehicle type.
      Result Proceed to
      for navigation receiver type w/ navigation system A
      for navigation receiver type w/o navigation system B
      for radio and display type 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 (-) auxiliary battery terminal.
    2. Disconnect the H140 radio receiver assembly connector.
      GTY522552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H140-1 (CANH) - H140-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

    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.
      GTY531564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H140-12 (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. Reconnect 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
      H140-15 (IG) - Body ground Power switch on (IG) 11 to 14 V
      H140-16 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      H140-17 (+B1) - Body ground Power switch off 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (See article. Refer to REMOVAL [08/2014 - ] )

    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 H140 radio receiver assembly connector.
      GTY522552Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H140-1 (CANH) - H140-2 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

    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.
      GTY531564Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H140-12 (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. Reconnect 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
      H140-15 (IG) - Body ground Power switch on (IG) 11 to 14 V
      H140-16 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      H140-17 (+B1) - Body ground Power switch off 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (See article. Refer to REMOVAL [08/2014 - ] )

    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 H164 radio receiver assembly connector.
      GTY524179Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Radio Receiver Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      H164-9 (CANH) - H164-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

    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 H162 radio receiver assembly connector.
    2. Measure the resistance according to the value(s) in the table below.
      GTY537546Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H162-7 (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. 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
      H162-3 (ACC1) - Body ground Power switch on (ACC) 11 to 14 V
      H162-4 (+B1) - Body ground Power switch off 11 to 14 V
      H164-1 (IG) - Body ground Power switch on (IG) 11 to 14 V

    Result:  OK

    OK 

    REPLACE RADIO RECEIVER ASSEMBLY 

    (See article. Refer to REMOVAL [08/2014 - ] )

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

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