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Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK CAN BUS WIRE (STEERING SENSOR SUB BUS LINE DISCONNECTION) 
    1. Turn the ignition switch off.
    2. Disconnect the steering sensor connector (D12).
    3. Measure the resistance according to the value(s) in the table below.

      Resistance 

      RESISTANCE SPECIFICATION

      Tester Connection Condition Specified value
      D12-10 (CANH) - D12-9 (CANL) Ignition switch off 54 to 69 Ω

    NG: REPAIR OR REPLACE STEERING SENSOR SUB BUS LINE OR CONNECTOR (CAN-H, CAN-L) 

    Fig 1: Disconnecting Steering Sensor Connector (D12)
    G05007156Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to next step 

  2. CHECK WIRE HARNESS (IG1, ESS) 
    1. Measure the resistance and voltage according to the value(s) in the table below.

      Resistance and voltage 

      RESISTANCE AND VOLTAGE SPECIFICATION

      Tester Connection Condition Specified Condition
      D12-2 (ESS) - Body ground Always Below 1 Ω
      D12-1 (IG) - Body ground Ignition switch on (IG) 10 to 14 V

    NG: REPAIR OR REPLACE HARNESS OR CONNECTOR 

    Fig 2: Disconnecting Steering Sensor Connector (D12)
    G05408870Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK : REPLACE STEERING SENSOR 

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