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Home >> Subaru >> 2010 >> Legacy Premium, Standard >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 15 (Engine Controls - Engine (Diagnostics) (H4DOTC - 2.5L DOHC Turbo)) >> Malfunction Indicator Light >> Activation Of Malfunction Indicator Light

Activation Of Malfunction Indicator Light

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  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. Ref. to MALFUNCTION INDICATOR LIGHT DOES NOT COME ON , Malfunction Indicator Light.
    Fig 1: Identifying Combination Meter Malfunction Indicator Light
    G06647741Courtesy of SUBARU OF AMERICA, INC.
  2. After starting the engine, the malfunction indicator light goes out. If it does not go off, any of the engine and emission control system has malfunction.
    Fig 2: Malfunction Indicator Light Blinking Pattern
    G06647742Courtesy of SUBARU OF AMERICA, INC.
  3. If the diagnostic system detects a misfire which could damage the catalyst, the malfunction indicator light will blink at a cycle of 1 Hz.
    Fig 3: Malfunction Indicator Light Blinking Pattern
    G06647743Courtesy of SUBARU OF AMERICA, INC.
  4. Install the delivery (test) mode fuse (A) of main fuse box with ignition switch to OFF.
    Fig 4: Identifying Main Fuse Box Test Mode Fuse
    G06647735Courtesy of SUBARU OF AMERICA, INC.
    1. When the ignition switch is turned to ON (engine OFF), the malfunction indicator light illuminates.
    2. After the engine starts, malfunction indicator light blinks in a cycle of 0.5 Hz. (During diagnosis)
    3. Malfunction indicator light blinks at a cycle of 3 Hz after diagnosis if there is no trouble. Malfunction indicator light illuminates if faulty.
    Fig 5: Malfunction Indicator Light Blinking Pattern
    G06647745Courtesy of SUBARU OF AMERICA, INC.