Basic Diagnostic Procedure: Procedure

Step	Check	Yes	No
1 PERFORM CUSTOMER INTERVIEW. Using the Check List for Interview, ask the customer the condition of how trouble occurs.	Did you interview the customer?	Go to step 2 .	Interview the customer. <Ref. to CHECK LIST FOR INTERVIEW .>
2 CHECK SUBARU SELECT MONITOR COMMUNICATION. Check for communication with the radar sensor. NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. <Ref. to INSPECTION , Subaru Select Monitor.>	Is communication possible?	Go to step 3 .	Check the communication circuit.
3 CHECK RADAR SENSOR. Read the DTC and cancel code of the radar sensors LH and RH using the Subaru Select Monitor. <Ref. to READ DIAGNOSTIC TROUBLE CODE (DTC) .> <Ref. to READ CANCEL CODE .>	Is DTC displayed?	Perform the diagnosis for the displayed DTCs and cancel code. (Perform the diagnosis to the side that displayed the DTC.) <Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .> <Ref. to READ CANCEL CODE .> After diagnosis, Go to step 6 .	Go to step 4 .
4 PERFORM DIAGNOSTICS WITH PHENOMENON. Check the list of Diagnostics with Phenomenon. <Ref. to DIAGNOSTICS WITH PHENOMENON .>	Does the symptom apply?	Perform diagnosis according to the procedures in the diagnostics with phenomenon.	Go to step 5 .
5 CHECK TROUBLE PHENOMENON. Perform the basic inspection. <Ref. to INSPECTION , General Description.> Check the radar sensor. <Ref. to CONTROL MODULE I/O SIGNAL .> Perform check of current data. <Ref. to READ CURRENT DATA .>	Was the trouble cause found?	Perform the Clear Memory after repairing or replacing the cause of trouble.	System is normal.
6 PERFORM DIAGNOSIS. Perform the Clear Memory Mode. <Ref. to CLEAR MEMORY MODE .> Perform the Inspection Mode. <Ref. to INSPECTION MODE .>	Is DTC displayed?	Perform the diagnosis for the displayed DTCs. <Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) .>	Finish the diagnosis.