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Inspection Procedure

  1. CHECK CAN BUS LINE FOR DISCONNECTION (STEERING ANGLE SENSOR SUB BUS LINE) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the steering angle sensor connector (S12).
    3. Measure the resistance according to the value(s) in Fig 1.

      Standard: 

      Fig 1: Tester Connection Specified Value Table
      G02964158Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    1. NG: REPAIR OR REPLACE STEERING ANGLE SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 
    2. OK: Go to next step. 
      Fig 2: Disconnecting Steering Angle Sensor Connector (S12)
      G02964159Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. CHECK WIRE HARNESS (IG1, ESS) 
    1. Measure the resistance according to the value(s) in TESTER CONNECTION SPECIFIED VALUE .

      Standard: 

      TESTER CONNECTION SPECIFIED VALUE

      Tester connection Condition Specified value
      S12-2 (ESS) - Body ground Always Below 1 ohms
    2. Measure the voltage according to the value(s) in TESTER CONNECTION SPECIFIED VALUE .

      Standard: 

      TESTER CONNECTION SPECIFIED VALUE

      Tester connection Condition Specified value
      S12-1 (IG1) - Body ground IG switch ON 10 to 14 V
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: REPLACE STEERING ANGLE SENSOR (SEE  STEERING SENSOR  ) 
      Fig 3: Checking Wire Harness (IG1, ESS)
      G02964160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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