2012 Subaru Outback Base, Automatic CVT TransFACTORY OEM SERVICE PROCEDURE

Basic Diagnostic Procedure: Procedure

Step Check Yes No
1 CHECK PRE-INSPECTION  .
  1. Ask the customer when and how the trouble occurred using the interview check list. Refer to , CHECK LIST FOR INTERVIEW .
  2. Before performing diagnostics, check the following items which might affect CVT problems.
Is the item that is thought to influence the CVT problem working properly? Go to step 2  . Repair the items which may be affecting the CVT trouble.
2 CHECK AT OIL TEMP LIGHT. 
Turn the ignition switch to ON and wait for at least 2 seconds.		 Does the AT OIL TEMP light illuminate? Go to step 3  . Check the AT OIL TEMP light.
3 CHECK AT OIL TEMP LIGHT. 
Start the engine and wait for 2 seconds or more.		 Does the AT OIL TEMP light blink? Go to step 4  . Go to step 6  .
4 CHECK FOR ANY OTHER DTC ON DISPLAY. 
Read the DTC.
NOTE: If the communication function of Subaru Select Monitor cannot be executed normally, check the communication circuit. Refer to , COMMUNICATION FOR INITIALIZING IMPOSSIBLE , Diagnostic Procedure for Subaru Select Monitor Communication.
 Is DTC displayed on Subaru Select Monitor? Record all DTC. Go to step 5  . Go to step 6  .
5 CHECK FREEZE FRAME DATA. 
Using the Subaru Select Monitor, check the Freeze Frame Data.		 Are freeze frame data recorded? Record the freeze frame data. Go to step 7  . Go to step 7  .
6 PERFORM GENERAL DIAGNOSTICS. 
  1. Inspect using "Diagnostic Procedure without Diagnostic Trouble Code (DTC)". Refer to , DIAGNOSTIC PROCEDURE WITHOUT DIAGNOSTIC TROUBLE CODE (DTC) .
  2. Inspect using "Diagnostics with Phenomenon". Refer to , DIAGNOSTICS WITH PHENOMENON .
  3. Perform the Inspection Mode. Refer to , INSPECTION MODE .
  4. Read the DTC.
 Is DTC displayed on Subaru Select Monitor? Go to step 7  . Finish the diagnosis.
7 PERFORM DIAGNOSIS. 
  1. Inspect by referring to "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Refer to , DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .
    NOTE: For the DTC table, refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Refer to , LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .
  2. Repair the trouble cause.
  3. Perform the Clear Memory Mode.
  4. Perform the Inspection Mode. Refer to , INSPECTION MODE .
  5. Read the DTC.
 Is DTC displayed on Subaru Select Monitor? Inspect by referring to "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Refer to , DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) . 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.

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