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Home >> Subaru >> 2004 >> Impreza WRX STi >> Repair and Diagnosis >> Engine Performance >> System >> ENGINE (DIAGNOSTICS) (STi) >> Inspection Mode >> Operation >> OBD-II General Scan Tool

OBD-II General Scan Tool

  1. Warm up the engine.
  2. Connect the test mode connector (A) at the lower side of instrument panel (on the driver's side).
    Fig 1: Connecting Test Mode Connector At Lower Side Of Instrument Panel
    G00949499Courtesy of SUBARU OF AMERICA, INC.
  3. Connect the OBD-II general scan tool to its data link connector in the lower portion of instrument panel (on the driver's side).
    CAUTION: Do not connect the scan tools except for Subaru Select Monitor and OBD-II general scan tool.
    Fig 2: Identifying Lower Portion Of Instrument Panel
    G00949500Courtesy of SUBARU OF AMERICA, INC.
  4. Start the engine.
    NOTE: Depress the clutch pedal when starting engine.
  5. Using the shift lever, turn the "N" position switch to ON.
  6. Keep the engine speed in 2,500 - 3,000 rpm range for 40 seconds.
  7. Place the shift lever in "1st" gear and drive the vehicle at 5 to 10 km/h (3 to 6 MPH).
    NOTE:
    • On AWD model, release the parking brake.
    • The speed difference between front and rear wheels may light ABS warning light, but this indicates no malfunctions. When the engine control diagnosis is finished, perform the ABS memory clearance procedure of self-diagnosis system.
  8. Using the OBD-II general scan tool, check for DTC and record the result(s).
    NOTE:
    • For detailed operation procedures, refer to the OBD-II General Scan Tool Instruction Manual.
    • For detailed concerning DTC, refer to the List of Diagnostic Trouble Code (DTC).

      < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >