Basic Diagnostic Procedure: Procedure

BASIC 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 items which may influence AT problems. General Inspection < Ref. to INSPECTION , General Description.> Disconnection of harness connector Visual check for harness damage 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 unit that is thought to influence the AT problem working properly?	Go to step 2.	Repair or replace each item.
2 CHECK AT OIL TEMP WARNING LIGHT. Turn the ignition switch to ON.	Does the AT OIL TEMP warning light illuminate?	Go to step 4.	Go to step 3.
3 CHECK AT OIL TEMP WARNING LIGHT. Turn the ignition switch to OFF. Repair the AT OIL TEMP warning light circuit or power supply and ground line circuit. < Ref. to AT OIL TEMP WARNING LIGHT DISPLAY .> Turn the ignition switch to ON.	Is the AT OIL TEMP warning light flashing?	Go to step 4.	Go to step 5.
4 CHECK INDICATION OF DTC. Display the 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) .> Inspect using "General Diagnostic Table". < Ref. to GENERAL DIAGNOSTIC TABLE .> Perform the Clear Memory Mode. Perform the Inspection Mode. < Ref. to INSPECTION MODE .> Display the DTC.	Is DTC displayed?	Go to step 6.	Finish the diagnosis.
6 PERFORM DIAGNOSIS. Inspect using the "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 .> Display the DTC.	Is DTC displayed?	Inspect using the "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". < Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .>	Finish the diagnosis.