2012 Subaru Outback Base, Standard TransFACTORY OEM SERVICE PROCEDURE

Basic Diagnostic Procedure: Procedure

WARNING: This page is about a different car, the 2011 Subaru Tribeca. However, it is still accessible from the selected car via links, so may be relevant.
BASIC DIAGNOSTIC PROCEDURE CHART

Step Check Yes No
1 CHECK WARNING LIGHT 
Check whether the airbag warning light in the combination meter is lit.		 Does the airbag warning light illuminate? Go to step 2  Perform the diagnosis according to phenomenon of the problem.
2 READ DTC 
  1. Turn the ignition switch to OFF.
  2. Connect the Subaru Select Monitor to data link connector.
  3. Turn the ignition switch to ON and run the Subaru Select Monitor.
  4. Read the DTC. Refer to OPERATION , Read Diagnostic Trouble Code (DTC).
    NOTE: If the communication function of the Subaru Select Monitor cannot be executed normally, check the communication circuit. Refer to COMMUNICATION FOR INITIALIZING IMPOSSIBLE , INSPECTION, Subaru Select Monitor.
  5. Record all DTCs and freeze frame data.
 Is DTC displayed? Go to step 3  Go to AIRBAG WARNING LIGHT FAILURE in Airbag System (Diagnostics) article. Refer to AIRBAG WARNING LIGHT FAILURE .
3 PERFORM DIAGNOSIS. 
  1. Determine the possible cause "List of Diagnostic Trouble Code (DTC)", Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .
  2. Inspect the DTC using "List of Diagnostic Trouble Code (DTC)".
  3. Repair the trouble cause.
  4. Perform the Clear Memory Mode. Refer to CLEAR MEMORY MODE .
  5. Perform the Inspection Mode. Refer to INSPECTION MODE .
  6. Read any other DTCs displayed.
 Is DTC displayed? Perform the procedure 1) to 5) in step 3. Finish the diagnosis.
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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.