Basic Diagnostic Procedure: Procedure

Ask the customer when and how the trouble occurred using the interview check list. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>CHECK LIST FOR INTERVIEW .

Did you interview the customer?

Yes:  Go to  2.

No:  Perform the interview, and Go to  2.

Perform basic inspection. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>GENERAL DESCRIPTION>INSPECTION .

Is the check result OK?

Yes:  Go to  3.

No:  Repair the faulty part found in basic inspection, and Go to  3.

1. Turn the ignition switch to OFF.
2. Connect the Subaru Select Monitor to data link connector. Ref. to COMMON (DIAGNOSTICS)>DATA LINK CONNECTOR .
3. Turn the ignition switch to ON and run the Subaru Select Monitor.
4. Select [Front Relay Control Module].
   NOTE: For detailed operation procedures, refer to "Help" of application.

Is communication possible?

Yes:  Go to  4.

No:  Check the communication circuit. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION .

1. Read the DTC of [Front Relay Control Module] using the Subaru Select Monitor. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .
2. Record all DTCs and time stamp.
   NOTE: For time stamp, refer to "LAN SYSTEM". Ref. to LAN SYSTEM (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION>TIME STAMP .

Are any DTCs displayed? (Current malfunction)

Yes:  Record the DTC, time stamp and freeze frame data, and Go to  5.

No:  Perform diagnosis according to the procedures in the diagnostics with phenomenon. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DIAGNOSTICS WITH PHENOMENON .

1. Perform the diagnosis according to the displayed DTC. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)>LIST .
2. Repair or replace the cause of trouble.
3. Using the Subaru Select Monitor, perform the clear memory of [Front Relay Control Module]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY .
4. Execute the inspection mode. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>INSPECTION MODE .
5. Read the DTC of [Front Relay Control Module] using the Subaru Select Monitor. Ref. to FRONT RELAY CONTROL MODULE (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

   Are any DTCs displayed? (Current malfunction)

   Yes:  Repeat step  5 until DTC is not shown.

   No:  Finish the diagnosis.