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Home >> Subaru >> 2004 >> Forester XS, Standard >> Repair and Diagnosis >> Engine Performance >> System >> Engine (Diagnostics) (H4SO) >> OBD-II General Scan Tool >> Operation >> How To Use OBD-II General Scan Tool
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How To Use OBD-II General Scan Tool

  1. Prepare a general scan tool (OBD-II general scan tool) required by SAE J1978.
  2. Open the cover and connect the OBD-II general scan tool to data link connector located in the lower portion of instrument panel (on the driver's side).
    Fig 1: Connecting OBD-II General Scan Tool To Data Link Connector
    G00995795Courtesy of SUBARU OF AMERICA, INC.
  3. Using the OBD-II general scan tool, call up DTC and freeze frame data.

    OBD-II general scan tool functions consist of:

    1. MODE $01: Current powertrain diagnostic data
    2. MODE $02: Powertrain freeze frame data
    3. MODE $03: Emission-related powertrain DTC
    4. MODE $04: Clear/Reset emission-related diagnostic information

    Read out the data according to repair procedures. (For detailed operation procedures, refer to the .)

    NOTE: For details concerning DTC, refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .