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Inspection Procedure

WARNING: This page is about a different car, the 2004 Toyota Highlander. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK WIRE HARNESS (IG1, ESS) 
    1. Turn the ignition switch to the LOCK position.
    2. Disconnect the connector (S14) from the steering sensor.
    3. Measure the resistance according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      S14-2 (ESS) - Body ground Always Below 1 Ω
      Fig 1: Checking Steering Sensor Connector Wire Harness (IG1, ESS)
      G02909852Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Connect the connector (S14) to the steering sensor.
    5. Measure the voltage according to the value (s) in the table below.

      Standard: 

      TERMINALS SPECIFIED CONDITION CHART

      Tester connection Condition Specified value
      S14-1 (IG1) - Body ground Ignition SW ON 10 to 14 V
      NOTE: Perform the measurement from the back of the connector with the connector connected.
    1. NG: REPAIR OR REPLACE WIRE HARNESS OR CONNECTOR 
    2. OK: REPLACE STEERING SENSOR (See  REPLACEMENT  ) 
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