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Navigation Receiver Assembly Communication Stop Mode [06/2015 - 01/2018]: Procedure

  1. CHECK FOR OPEN IN CAN BUS LINES (NAVIGATION RECEIVER ASSEMBLY) 
    1. Disconnect the cable from the negative (-) auxiliary battery terminal.
    2. Disconnect the navigation receiver assembly connector.
      GTY595674Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Navigation Receiver Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      G105-9 (CANH) - G105-10 (CANL) Cable disconnected from negative (-) auxiliary battery terminal 54 to 69 Ω

      Result

      Result 
      OK
      NG

    Result: 

    NG 

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

    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.
      GTY543350Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Navigation Receiver Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      G59-7 (GND1) - Body ground Cable disconnected from negative (-) auxiliary battery terminal Below 1 Ω
    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 Switch Condition Specified Condition
      G105-1 (IG) - Body ground Power switch ON (IG) 11 to 14 V
      G59-3 (ACC1) - Body ground Power switch ON (ACC) 11 to 14 V
      G59-4 (+B1) - Body ground Power switch off 11 to 14 V

      Result

      Result 
      OK
      NG

    Result: 

    OK 

    REPLACE NAVIGATION RECEIVER ASSEMBLY. Refer to  REMOVAL [06/2015 - 01/2018] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)