Basic Diagnostic Procedure: Procedure

DIAGNOSTIC PROCEDURE CHART

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 ATF TEMPERATURE WARNING LIGHT INSPECTION. Start the engine and wait for 2 seconds or more.	Is the ATF temperature warning light blinking?	Go to step 4 .	Go to step 3 .
3 ATF TEMPERATURE WARNING LIGHT INSPECTION. Turn the ignition switch to OFF. Check the ATF temperature warning light. <Ref. to INSPECTION , AT Oil Temp Warning Light Display .> Turn the ignition switch to ON and wait for at least 2 seconds. Start the engine.	Is the ATF temperature warning light blinking?	Go to step 4 .	Go to step 5 .
4 CHECK DTC. Display 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?	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 DIAGNOSTICS WITH PHENOMENON . > Perform the Inspection Mode. <Ref. to INSPECTION MODE . > Display 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 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.