Subaru Crosstrek Service Manual: Basic diagnostic procedure Procedure

CAUTION:

• Subaru Select Monitor is required for reading DTC, performing diagnosis and reading current data.

• Remove foreign matter (dust, water, oil, etc.) from the body integrated unit connector during removal and installation.

• 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.

• To check harness for open or short circuits, shake the suspected trouble spot or connector.

• Check List for Interview Check List for Interview">

1.CHECK PRE-INSPECTION.

Ask the customer when and how the trouble occurred using the interview check list. Check List for Interview">

Did you interview the customer?

Basic Diagnostic Procedure > PROCEDURE">Go to Step 2.

Interview the customer.

2.BASIC INSPECTION.

Check components which might affect body control. General Description > INSPECTION">

Is the component that might influence the body control problem normal?

Basic Diagnostic Procedure > PROCEDURE">Go to Step 3.

Repair or replace each component.

3.CHECK DTC.

1) Read the DTC. Read Diagnostic Trouble Code (DTC)">

NOTE:

If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. 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”. General Description > CAUTION">

Is DTC displayed on Subaru Select Monitor?

Basic Diagnostic Procedure > PROCEDURE">Go to Step 5.

Basic Diagnostic Procedure > PROCEDURE">Go to Step 4.

4.PERFORM GENERAL DIAGNOSTICS.

Inspect using the “General Diagnostic Table”. General Diagnostic Table">

Is result of inspection OK?

The body control system is normal.

Basic Diagnostic Procedure > PROCEDURE">Go to Step 5.

5.PERFORM DIAGNOSIS.

1) Correct the cause of trouble.

2) Perform the Clear Memory Mode. Clear Memory Mode">

3) Read the DTC. Read Diagnostic Trouble Code (DTC)">

Is DTC displayed on Subaru Select Monitor?

Repeat step 5 until DTC is not shown.

Finish the diagnosis.

List

Check list for interview Check

Other materials:

Installation
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Dtc p0072 ambient air temperature sensor circuit "a" low
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