Basic Diagnostic Procedure: Procedure

CAUTION:

Subaru Select Monitor kit is required for reading DTC, performing diagnosis and reading current data.
Before removal or installation, be sure to remove any foreign matter (dust, moisture, oil, etc.).
Registration of immobilizer may be needed after the replacement of control modules, etc. For detailed procedure, refer to the "REGISTRATION MANUAL FOR IMMOBILIZER" provided as a separate volume.

NOTE:

Using the Function Setting (Customize), check that the keyless access system is not in a cancelled state. Ref. to SECURITY AND LOCKS > Function Setting (Customize) > OPERATION .
Check List for Interview Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Check List for Interview .

CHECK BATTERY .
Using a tester, measure the battery voltage.

Is the voltage 11 V or more?

Yes: Go to 2 .

No: Charge or replace the battery and perform check pre-inspection. Go to 2 .
CHECK PRE-INSPECTION .
Use the interview check list to interview the user. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Check List for Interview .

Was the symptoms of the trouble recorded in the interview?

Yes: Go to 3 .

No: Interview the user again.
BASIC INSPECTION .
Check the DTC of the LAN system. Ref. to LAN SYSTEM (DIAGNOSTICS) > General Description > INSPECTION .

Is LAN system normal?

Yes: Go to 4 .

No: Follow the DTC of the LAN system to repair or replace.
CHECK TROUBLE SYMPTOM .
1. Read diagnostic trouble code (DTC) for the keyless access system. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Read Diagnostic Trouble Code (DTC) > OPERATION .
  NOTE: If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > Subaru Select Monitor > COMMUNICATION FOR INITIALIZING IMPOSSIBLE .
2. Record all DTCs, time stamp and freeze frame data.
  NOTE: For time stamp, refer to "LAN SYSTEM". Ref. to LAN SYSTEM (DIAGNOSTICS) > General Description > TIME STAMP .
Is DTC displayed on Subaru Select Monitor?

Yes: Perform diagnosis according to the DTC.

No: Go to 5 .
CHECK PHENOMENON LIST .
Check the "Phenomenon List". Ref. to KEYLESS ACCESS WITH PUSH BUTTON START SYSTEM (DIAGNOSTICS) > General Diagnostic Table .

Is there a symptom that corresponds in the phenomenon list?

Yes: Perform diagnosis according to the procedures in the phenomenon list.

No: Go to 6 .
CHECK TROUBLE PHENOMENON .
1. Perform check of current data.
2. Perform a function check.
3. Perform a unit check.
Was the trouble cause found?

Yes: Repair the cause of trouble.

No: Repeat a basic check again.