Basic Diagnostic Procedure: Procedure

CAUTION: Remove foreign matter (dust, water, oil etc.) from the VDCCM & H/U connector during removal and installation.

NOTE:

To check the harness for open or short circuits, shake problem spot or connector.
Refer to "Check List for Interview". Refer to , CHECK LIST FOR INTERVIEW .

Step	Check	Yes	No
1 CHECK PRE-INSPECTION. Ask the customer when and how the trouble occurred using the interview check list. Refer to , CHECK LIST FOR INTERVIEW . Before performing diagnostics, check the component which might affect VDC problems. Refer to , INSPECTION , General Description.	Is the component that might influence the VDC problem normal?	Go to step 2 .	Repair or replace each component.
2 CHECK INDICATION OF DTC. Turn the ignition switch to OFF. Connect the Subaru Select Monitor to data link connector. Turn the ignition switch to ON and run the Subaru Select Monitor. Read the DTC using the Subaru Select Monitor. Refer to , OPERATION , Read Diagnostic Trouble Code (DTC). NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Refer to , COMMUNICATION FOR INITIALIZING IMPOSSIBLE , INSPECTION, Subaru Select Monitor.	Is DTC displayed on Subaru Select Monitor?	Record the DTC. Go to step 4 .	Go to step 3 .
3 PERFORM GENERAL DIAGNOSTICS. Perform the inspection by referring to "General Diagnostic Table". Refer to , INSPECTION , General Diagnostic Table. Perform the Clear Memory Mode. Refer to , OPERATION , Clear Memory Mode. Perform the Inspection Mode. Refer to , PROCEDURE , Inspection Mode. Read the DTC. Refer to , OPERATION , Read Diagnostic Trouble Code (DTC). Check the DTC is not displayed.	Do the VDC warning light & VDC indicator light, VDC OFF indicator light and ABS warning light go off after starting the engine?	Finish the diagnosis.	Check the combination meter circuit. Refer to , ABS WARNING LIGHT DOES NOT GO OFF , Warning Light Illumination Pattern. Refer to , VDC WARNING LIGHT AND VDC INDICATOR LIGHT DO NOT GO OFF , Warning Light Illumination Pattern. Refer to , VDC OFF INDICATOR LIGHT DOES NOT GO OFF , Warning Light Illumination Pattern.
4 CHECK INFORMATION STORED IN FREEZE FRAME DATA. Using the Subaru Select Monitor, check the freeze frame data of VDC control module.	Are freeze frame data recorded?	Record the freeze frame data.	Go to step 5 .
5 PERFORM DIAGNOSIS. Refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . NOTE: For the DTC list, refer to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . Refer to , LIST , List of Diagnostic Trouble Code (DTC). Correct the cause of trouble. Perform the Clear Memory Mode. Refer to , OPERATION , Clear Memory Mode. Perform the Inspection Mode. Refer to , PROCEDURE , Inspection Mode. Read the DTC. Refer to , OPERATION , Read Diagnostic Trouble Code (DTC).	Is DTC displayed?	Repeat step 5 until DTC is not shown.	Finish the diagnosis.