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Home >> Subaru >> 2018 >> WRX Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (Diagnostics - Introduction) (Except For STI) >> Malfunction Indicator Light >> Malfunction Indicator Light Does Not Go Off
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Malfunction Indicator Light Does Not Go Off

Trouble symptom: 

Although malfunction indicator light comes on when the engine runs, DTC is not shown on the Subaru Select Monitor or general scan tool display.

  1. CHECK DTC  .

    Read DTC using the Subaru Select Monitor or a general scan tool. Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Read Diagnostic Trouble Code (DTC) .

    Is DTC of engine or LAN system displayed? (Current malfunction) Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>Read Diagnostic Trouble Code (DTC)>OPERATION .

    Yes:  Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". Ref. to ENGINE (DIAGNOSTICS) (EXCEPT FOR STI)>List of Diagnostic Trouble Code (DTC) . Ref. to LAN SYSTEM (DIAGNOSTICS)>List of Diagnostic Trouble Code (DTC) .

    No:  Check the combination meter system. Ref. to COMBINATION METER (DIAGNOSTICS)>Basic Diagnostic Procedure .