2001 Subaru Outback Base, AutomaticFACTORY OEM SERVICE PROCEDURE

Basic Diagnostic Procedure

NOTE: Subaru Select Monitor (SSM) or an OBD-II generic scan tool must be used to perform basic diagnostic procedure. Follow scan tool manufacturer's instructions for proper operation. Communication with vehicle's on-board computer is through the OBD-II Data Link Connector (DLC). See Fig 1 .

After performing procedures in PRELIMINARY INSPECTION & ADJUSTMENTS, BASIC FUEL SYSTEM CHECKS and BASIC IGNITION SYSTEM CHECKS in BASIC DIAGNOSTIC PROCEDURES article, this is the starting point for utilizing the self-diagnostic system for determining computer-related problems. After performing necessary tests as described in the basic diagnostic procedure, if no codes are indicated and driveability problems still exist, see MALFUNCTION INDICATOR LIGHT DIAGNOSIS in TROUBLE SHOOTING - NO CODES article. Scan tool functions consist of:

  • MODE $01

    Current powertrain diagnostic data.

  • MODE $02

    Powertrain freeze frame data.

  • MODE $03

    Emission-related powertrain DTCs.

  • MODE $04

    Clear/reset emission-related diagnostic information.

Fig 1: Locating Data Link Connector
G00013004Courtesy of SUBARU OF AMERICA, INC.
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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.