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OBD-II General Scan Tool Procedure: Notes

WARNING: This page is about a different car, the 2002 Subaru Outback and 2002 Subaru Legacy. However, it is still accessible from the selected car via links, so may be relevant.
  1. Open cover and connect OBD-II general scan tool to data link connector located in lower portion of instrument panel, on driver's side. See Fig 1 .
  2. NOTE: For details concerning diagnostic trouble codes, refer to DIAGNOSTIC TROUBLE CODE DEFINITIONS  .
    NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to access generic OBD-II PIDs.
  3. Using OBD-II general scan tool, call up diagnostic trouble code(s) and freeze frame data. OBD-II general scan tool functions consist of:

    • MODE $01

      Current powertrain diagnostic data. Refers to data denoting current operating condition of analog input/output, digital input/output and/or powertrain system. Support data and PID (Parameter Identification) codes are shown in Fig 2 .
    • NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to clear or reset emission-related diagnostic MODE $04 information.

    • MODE $02
      Powertrain freeze frame data. Refers to data denoting operating condition when trouble is sensed by on-board diagnosis system. Support data and PID (Parameter Identification) codes are shown in Fig 3 .
    • MODE $03

      Emission-related powertrain diagnostic trouble codes. See READING DIAGNOSTIC TROUBLE CODES  for information about data denoting emission-related powertrain diagnostic trouble codes.
    • NOTE: Refer to OBD-II general scan tool manufacturer's instruction manual to clear or reset emission-related diagnostic MODE $04 information.

    • MODE $04
      Clear/Reset emission-related diagnostic information. Refers to mode used to-clear or reset emission-related diagnostic information (OBD-II trouble diagnostic information).
    Read out data according to repair procedures. For detailed operation procedures, refer to OBD-II General Scan Tool Operation Manual.
Fig 1: Locating Data Link Connector
G00013004Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Identifying Mode $01: Current Powertrain Diagnostic Data Parameter Identification (PID) Codes
G00168843Courtesy of SUBARU OF AMERICA, INC.
Fig 3: Identifying Mode $02: Powertrain Freeze Frame Data Parameter Identification (PID) Codes
G00168844Courtesy of SUBARU OF AMERICA, INC.