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

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

STEP	CHECK	YES	NO
1.CHECK WARNING LIGHT. Check whether the airbag warning light in the combination meter is lit.	Does the airbag warning light illuminate-	Basic Diagnostic Procedure > PROCEDURE	Perform the diagnosis according to phenomenon of the problem.
2.READ DTC. 1) Turn the ignition switch to OFF. 2) Connect the Subaru Select Monitor to data link connector. 3) Turn the ignition switch to ON and run the Subaru Select Monitor. 4) Read the DTC. (Current malfunction) 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 > INSPECTION 5) Record all DTCs, time stamp and freeze frame data. NOTE: For time stamp, refer to “LAN SYSTEM”. General Description > CAUTION	Is DTC displayed-	Basic Diagnostic Procedure > PROCEDURE	Go to “Airbag Warning Light Failure” Airbag Warning Light Failure.
3.PERFORM DIAGNOSIS. 1) Determine the possible cause from “List of Diagnostic Trouble Code (DTC)” List of Diagnostic Trouble Code (DTC). 2) Inspect the DTC using “List of Diagnostic Trouble Code (DTC)”. 3) Repair the trouble cause. 4) Perform the Clear Memory Mode. Clear Memory Mode 5) Perform the Inspection Mode. Inspection Mode 6) Read any other DTCs displayed.	Is DTC displayed-	Perform the procedure 1) to 5) in step 3.	Finish the diagnosis.

Airbag warning light illumination pattern inspection

Turn the ignition switch to ON, and confirm that the airbag warning light remains on for approx. 6 seconds then turns off afterwards.(1)Airbag warning light(2)Approx. 6 seconds(3)Ignition switch ON ...

Batch save of event record data 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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Activation of malfunction indicator light
1. When the ignition switch is turned to ON (engine OFF), the malfunction indicator light (A) in the combination meter illuminates.NOTE:If the malfunction indicator light does not illuminate, perform diagnostics of the malfunction indicator light circuit or the combination meter circuit. Malfunctio ...