Subaru Legacy BN/BS (2015-2019) Service Manual: Basic diagnostic procedure procedure

Subaru Legacy BN/BS (2015-2019) Service Manual / Hvac system (diagnostics) / Basic diagnostic procedure procedure

NOTE:

When the sunload sensor check is performed indoors or in the shade, it could be diagnosed as sensor having an open circuit. Always perform the inspection in direct sunlight.

STEP	CHECK	YES	NO
1.START INSPECTIONS. 1) Prepare the tools. General Description > PREPARATION TOOL 2) Perform the pre-inspection. General Description > INSPECTION	Is any malfunction found in pre-inspection-	Fix the malfunction found in pre-inspection, and go to the next inspection step. Basic Diagnostic Procedure > PROCEDURE	Basic Diagnostic Procedure > PROCEDURE
2.CHECK DTC. 1) Under the failure condition, leave the vehicle for one minute or more. 2) Read the DTC using Subaru Select Monitor. Read Diagnostic Trouble Code (DTC) NOTE: • If the communication function of the Subaru Select Monitor cannot be executed properly, check the communication circuit. Diagnostic Procedure for Subaru Select Monitor Communication > COMMUNICATION FOR INITIALIZING IMPOSSIBLE • Record the freeze frame data recorded together with the DTC.	Is DTC displayed-	Perform diagnosis according to the DTC. List of Diagnostic Trouble Code (DTC) > LIST After diagnosis, Basic Diagnostic Procedure > PROCEDURE	Refer to Diagnostics with Phenomenon. Diagnostics with Phenomenon > INSPECTION
3.PERFORM DIAGNOSIS. 1) Perform the Clear Memory Mode. Clear Memory Mode 2) Perform the Inspection Mode. Inspection Mode	Is DTC displayed on Subaru Select Monitor-	Perform diagnosis according to the DTC.	Finish the diagnosis.

Clear memory mode operation

1. On «Start» display, select «Diagnosis».2. On «Vehicle selection» display, input the target vehicle information and select «Confirmed».3. On «Main Menu» display, select «Each System».4. ...

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