Basic Diagnostic Procedure: Procedure

DIAGNOSTICS 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 diagnostics, check the following items which might affect CVT 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 .> <Ref. to STALL TEST .> Secondary pressure test <Ref. to SECONDARY PRESSURE (LINE PRESSURE) TEST .> <Ref. to SECONDARY PRESSURE (LINE PRESSURE) TEST .> Transfer clutch pressure test <Ref. to TRANSFER CLUTCH PRESSURE TEST .> <Ref. to TRANSFER CLUTCH PRESSURE TEST .> Time lag test <Ref. to TIME LAG TEST .> <Ref. to TIME LAG TEST .> Road test <Ref. to ROAD TEST .> <Ref. to ROAD TEST .> Inhibitor switch <Ref. to INHIBITOR SWITCH .> <Ref. to INHIBITOR SWITCH .>	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 5.
4 CHECK DTC DISPLAY. Read 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 on Subaru Select Monitor?	Record the DTC, time stamp and freeze frame data. Go to step 6. NOTE: For the time stamp, refer to LAN article. <Ref. to TIME STAMP , CAUTION, General Description.> Depending on DTCs, time stamp may not be stored.	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 "Diagnostics with Phenomenon". <Ref. to DIAGNOSTICS WITH PHENOMENON .> Perform the Inspection Mode. <Ref. to INSPECTION MODE .> Read the DTC.	Is DTC displayed on Subaru Select Monitor?	Go to step 6.	Finish the diagnosis.
6 PERFORM 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)". <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 by referring to "Diagnostic Procedure with Diagnostic Trouble Code (DTC)". <Ref. to DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC) .>	Finish the diagnosis.