Basic Diagnostic Procedure: Procedure

DIAGNOSIS PROCEDURE

Step	Check	Yes	No
1 CHECK PRE-INSPECTION. Ask the customer when and how the trouble occurred using the interview check list. Ref. to CHECK LIST FOR INTERVIEW . Check the following items which may be affecting the AT trouble. General inspection Ref. to INSPECTION , General Description. Oil leakage Stall speed test Ref. to STALL TEST . Line pressure test Ref. to LINE PRESSURE TEST . Transfer clutch pressure test Ref. to TRANSFER CLUTCH PRESSURE TEST . Time lag test Ref. to TIME LAG TEST . Road test Ref. to ROAD TEST . Inhibitor switch Ref. to INHIBITOR SWITCH .	Is the item that is thought to influence the AT problem working properly?	Go to step 2 .	Repair or replace the items which may be affecting the AT 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 two seconds or more.	Does the AT OIL TEMP light blink?	Go to step 4 .	Go to step 6 .
4 CHECK DTC. Read the DTC. Ref. to OPERATION , Read Diagnostic Trouble Code (DTC). NOTE: If the communication function of Subaru Select Monitor cannot be executed normally, check communication circuit. Ref. 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 . NOTE: When the AT OIL TEMP light blinks, check if the learning has completed.
5 CHECK INFORMATION STORED IN 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. Inspect using "Diagnostic Procedure without Diagnostic Trouble Code (DTC)". Ref. to DIAGNOSTIC PROCEDURE WITHOUT DIAGNOSTIC TROUBLE CODE (DTC) . Perform the Clear Memory Mode. Perform the Inspection Mode. Ref. to INSPECTION MODE . Read the DTC.	Is DTC displayed on Subaru Select Monitor?	Go to step 7 .	Finish the diagnosis.
7 PERFORM DIAGNOSIS. Inspect using "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) . NOTE: For DTC table, refer to "List of Diagnostic Trouble Code (DTC)". Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Repair the trouble cause. Perform the Clear Memory Mode. Perform the Inspection Mode. Ref. to INSPECTION MODE . Read the DTC.	Is DTC displayed on Subaru Select Monitor?	Inspect again using Diagnostic Procedure with Diagnostic Trouble Code (DTC). Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .	Finish the diagnosis.