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Steering Angle Sensor Communication Stop Mode [08/2014 - ]: Procedure

  1. CHECK CAN BUS LINE FOR DISCONNECTION (STEERING ANGLE SENSOR BRANCH WIRE) 
    1. Turn the power switch off.
    2. Disconnect the steering angle sensor connector.
      GTY538258Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      H29-4 (CANH) - H29-3 (CANL) Power switch off 54 to 69 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Steering Angle Sensor)

    Result:  NG

    NG 

    REPAIR OR REPLACE CAN BRANCH LINE OR CONNECTOR (STEERING ANGLE SENSOR) 

    Result:  OK

    OK 

    See step  2

  2. CHECK HARNESS AND CONNECTOR (POWER SOURCE TERMINAL) 
    1. Measure the voltage according to the value(s) in the table below.
      GTY536002Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      H29-5 (IG1) - Body ground Power switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Steering Angle Sensor)

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (POWER SOURCE CIRCUIT) 

    Result:  OK

    OK 

    See step  3

  3. CHECK HARNESS AND CONNECTOR (GROUND TERMINAL) 
    1. Measure the resistance according to the value(s) in the table below.
      GTY531094Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Condition Specified Condition
      H29-2 (ESS) - Body ground Always Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Steering Angle Sensor)

    Result:  OK

    OK 

    REPLACE SPIRAL CABLE WITH SENSOR SUB-ASSEMBLY 

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

    Result:  NG

    NG 

    REPAIR OR REPLACE HARNESS OR CONNECTOR (GROUND CIRCUIT)