Basic Diagnostic Procedure: Procedure

CAUTION: Remove foreign matter (dust, water, oil, etc.) from the TPMS & keyless entry Control Module connector or TPMS Control Module connector during removal and installation.

PERFORM CUSTOMER INTERVIEW .
Ask the customer when and how the trouble occurred using the interview check list. Refer to TIRE PRESSURE MONITOR (DIAGNOSTICS)>Check List for Interview .

Did you interview the customer?

Yes : Go to 2.

No : Perform the interview, and Go to 2.
BASIC INSPECTION .
Perform basic inspection. Refer to TIRE PRESSURE MONITOR (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. Refer to COMMON (DIAG)>DATA LINK CONNECTOR .
3. Turn the ignition switch to ON and run the Subaru Select Monitor.
4. Select [Tire Pressure Monitor].
NOTE: For detailed operation procedures, refer to "Help" of application.

Is communication possible?

Yes : Go to 4.

No : Check the communication circuit. Refer to TIRE PRESSURE MONITOR (DIAGNOSTICS)>Diagnostic Procedure for Subaru Select Monitor Communication .
CHECK DTC .
Read the DTC of [Tire Pressure Monitor] using the Subaru Select Monitor. Refer to TIRE PRESSURE MONITOR (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .

Are any DTCs displayed? (Current malfunction)

Yes : Record the DTC, and Go to 5.

No : The system has returned to a normal condition at this time. Reproduce the failure, and then perform the diagnosis again.

NOTE: In this case, there may be temporary poor communication due to radio wave environment inside/outside the vehicle.
PERFORM DIAGNOSIS .
1. Perform the diagnosis according to the displayed DTC. Refer to TIRE PRESSURE MONITOR (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 [Tire Pressure Monitor]. Refer to COMMON (DIAG)>CLEAR MEMORY .
4. Execute the inspection mode. Refer to TIRE PRESSURE MONITOR (DIAGNOSTICS)>Inspection Mode .
5. Read the DTC of [Tire Pressure Monitor] using the Subaru Select Monitor. Refer to TIRE PRESSURE MONITOR (DIAGNOSTICS)>Diagnostic Trouble Code (DTC) .
  Are any DTCs displayed? (Current malfunction)
  
  Yes : Repeat step 5 until DTC is not shown.
  
  No : Finish the diagnosis.