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Home >> Subaru >> 2016 >> WRX Base >> Repair and Diagnosis (Single Page) >> Steering >> Manual Steering >> Power Steering System >> Power Steering Control Module >> Inspection >> Check Motor Unit
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Check Motor Unit

  1. Turn the ignition switch to OFF.
  2. Disconnect the connector from power steering unit.
  3. Using a tester and test harness, check the internal resistance of the harness terminals.

    Preparation tool: 

    Circuit tester 

    Fig 1: Power Steering Unit Circuit Diagram
    G10270227Courtesy of SUBARU OF AMERICA, INC.
    Between connector and terminal Standard
    (PS2) No. 1 - No. 2
    (PS2) No. 1 - No. 3
    (PS2) No. 2 - No. 3    		 Less than 10 Ω
    (PS2) No. 1 - Steering gearbox body
    (PS2) No. 2 - Steering gearbox body
    (PS2) No. 3 - Steering gearbox body    		 1 MΩ or more
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