Basic Diagnostic Procedure: Procedure

Fig 1: Multifunction Display Diagnostic Flow Chart

Courtesy of SUBARU OF AMERICA, INC.

PERFORM CUSTOMER INTERVIEW .
Ask the customer when and how the trouble occurred using the interview check list. Ref. to MULTI-FUNCTION DISPLAY (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 .
Perform basic inspection. Ref. to MULTI-FUNCTION DISPLAY (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 .
CHECK SUBARU SELECT MONITOR COMMUNICATION .
1. Turn the ignition switch to OFF.
2. Connect the Subaru Select Monitor to data link connector. Ref. to COMMON(diag)>DATA LINK CONNECTOR .
3. Turn the ignition switch to ON and run the Subaru Select Monitor.
4. Select [Multi-Function Display].
  NOTE: For detailed operation procedures, refer to "Application help".
Is communication possible?
- Yes : Go to 4 .
- No : Check the communication circuit. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Diagnostic Procedure for Subaru Select Monitor Communication .
CHECK CAN COMMUNICATION .
Perform the diagnosis for LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS)>Basic Diagnostic Procedure .

Is the check result OK?
- Yes : Go to 5 .
- No : Perform the inspection according to the diagnosis for LAN system.
CHECK MFD .
Read the DTC of [Multi-Function Display] using the Subaru Select Monitor. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

Are any DTCs displayed? (Current malfunction)
- Yes : Record the DTC, time stamp and freeze frame data, and Go to 7 .
- No : Go to 6 .
CHECK MFD .
Check MFD operation. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Active Test .

Is the check result OK?
- Yes : System is normal. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Active Test .
- No : Replace the MFD. Ref. to INSTRUMENTATION/DRIVER INFO>Combination Meter .
PERFORM DIAGNOSIS .
1. Perform the diagnosis for the displayed DTCs.
2. Repair or replace the cause of trouble.
3. Using the Subaru Select Monitor, perform the clear memory of [Multi-Function Display]. Ref. to COMMON(diag)>CLEAR MEMORY .
4. Execute the inspection mode.
5. Read the DTC of [Multi-Function Display] using the Subaru Select Monitor. Ref. to MULTI-FUNCTION DISPLAY (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .
Are any DTCs displayed? (Current malfunction)
- Yes : Repeat step 7 until DTC is not shown. Go to 7 .
- No : Finish the diagnosis.