Basic Diagnostic Procedure: Procedure

DIAGNOSTIC 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 . Before performing diagnosis, inspect the following item which might influence the AT problems. General inspection, Ref. to INSPECTION , General Description. Oil leaks 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 unit that might influence the AT problem normal?	Go to step 2.	Repair or replace each item.
2 CHECK AT OIL TEMP LIGHT. After the ignition switch is turned to ON, wait for at least 2 seconds.	Does the AT OIL TEMP light illuminate?	Go to step 4.	Go to step 3.
3 CHECK AT OIL TEMP LIGHT. Turn the ignition switch to OFF. Check the AT OIL TEMP light. Ref. to INSPECTION , AT Oil Temp Warning Light Display. After the ignition switch is turned to ON, wait for at least 2 seconds.	Does the AT OIL TEMP light blink?	Go to step 4.	Go to step 5.
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 the communication circuit. Ref. to COMMUNICATION FOR INITIALIZING IMPOSSIBLE , Diagnostic Procedure for Subaru Select Monitor Communication.	Is DTC displayed?	Go to step 6. NOTE: Record all DTC.	Go to step 5.
5 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 . Display DTC.	Is DTC displayed?	Go to step 6.	Inspect using "General Diagnostic Table". Ref. to GENERAL DIAGNOSTIC TABLE .
6 PERFORM THE DIAGNOSIS. Inspect by referring to "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) . NOTE: For the DTC table, refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Repair the trouble cause. Perform the Clear Memory Mode. Perform the Inspection Mode. Ref. to INSPECTION MODE . Display DTC.	Is DTC displayed?	Inspect by referring to "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .	Inspect using "General Diagnostic Table". Ref. to GENERAL DIAGNOSTIC TABLE .