Basic Diagnostic Procedure: Procedure

WARNING: This page is about a different car, the 2022 Subaru WRX. However, it is still accessible from the selected car via links, so may be relevant.

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 Check List for Interview. Ref. 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. Ref. 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. Ref. to COMMON (DIAGNOSTICS)>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. Ref. to TIRE PRESSURE MONITOR (DIAGNOSTICS)>DIAGNOSTIC PROCEDURE FOR SUBARU SELECT MONITOR COMMUNICATION>INSPECTION
CHECK DTC .
Read the DTC of [Tire Pressure Monitor] using the Subaru Select Monitor. Ref. to TIRE PRESSURE MONITOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)

Are any DTCs displayed? (Current code)

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. Ref. 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]. Ref. to COMMON (DIAGNOSTICS)>CLEAR MEMORY
4. Execute the inspection mode. Ref. to TIRE PRESSURE MONITOR (DIAGNOSTICS)>INSPECTION MODE
5. Read the DTC of [Tire Pressure Monitor] using the Subaru Select Monitor. Ref. to TIRE PRESSURE MONITOR (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC)
Are any DTCs displayed? (Current code)

Yes : Repeat step 5 until DTC is not shown. Go to 5.

No : Finish the diagnosis.