Self-Diagnostic System: Notes

Self-diagnostic system detects and indicates a fault in various inputs and outputs of electronic control. Warning light ("Check Engine" light) on the instrument panel indicates occurrence of a fault or trouble. Light Emitting Diode (LED) in control unit also indicates a trouble code. See Fig 1 and Fig 2 .

Fig 1: Oxygen Sensor Monitor Lamp Location (Exc. XT Model)

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Fig 2: Oxygen Sensor Monitor Lamp Location (XT Model)

Courtesy of SUBARU OF AMERICA, INC.