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Home >> Lexus >> 2022 >> IS 350 RWD >> Repair and Diagnosis >> Accessories & Equipment >> Communication Devices >> Can Communication System - Diagnostic Codes (3 Of 3) & Circuit Tests (1 Of 4) >> Can Communication System >> Center Airbag Sensor Communication Stop Mode [04/2013 - 10/2016] >> Procedure

Center Airbag Sensor Communication Stop Mode [04/2013 - 10/2016]: Procedure

  1. CHECK FOR OPEN IN CAN BUS LINES (AIRBAG SENSOR ASSEMBLY BRANCH LINE) 
    1. Disconnect the cable from the negative (-) battery terminal.
    2. Disconnect the K51 airbag sensor assembly connector.
      GTY464229Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Airbag Sensor Assembly)
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Condition Specified Condition
      K51-13 (CANH) - K51-22 (CANL) Cable disconnected from negative (-) battery terminal 54 to 69 Ω

      Result

      Result 
      OK
      NG

    Result: 

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (AIRBAG SENSOR 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.
      GTY464227Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Airbag Sensor Assembly)

      Standard Resistance

      Tester Connection Condition Specified Condition
      K51-25 (E1) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
      K51-26 (E2) - Body ground Cable disconnected from negative (-) battery terminal Below 1 Ω
    2. Reconnect the cable to the negative (-) battery terminal.
    3. Measure the voltage according to the value(s) in the table below.
      GTY464226Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
      *a Front view of wire harness connector
      (to Airbag Sensor Assembly)

      Standard Voltage

      Tester Connection Condition Specified Condition
      K51-21 (IG2) - Body ground Engine switch ON (IG) 11 to 14 V

      Result

      Result 
      OK
      NG

    Result: 

    OK 

    REPLACE AIRBAG SENSOR ASSEMBLY. Refer to  REMOVAL [04/2013 - 09/2020] 

    Result: 

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT)