Subaru Legacy BN/BS (2015-2019) Service Manual: Activation of malfunction indicator light

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h6do) / Malfunction indicator light / 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. Malfunction Indicator Light > MALFUNCTION INDICATOR LIGHT DOES NOT COME ON

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.

(1)	No faulty
(2)	Trouble occurs
(3)	ON
(4)	OFF
(5)	Ignition switch ON
(6)	Engine start

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.

(1)	ON
(2)	OFF
(3)	Ignition switch ON
(4)	Engine start
(5)	Misfire start
(6)	1 second

4. Install the delivery (test) mode fuse (A) with ignition switch to OFF.

CAUTION:

Do not use any fuses that are installed on the vehicle.

(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.

(1)	ON
(2)	OFF
(3)	Ignition switch ON
(4)	1 second

Malfunction indicator light does not come on

TROUBLE SYMPTOM:When the ignition switch is turned to ON (engine OFF), malfunction indicator light does not illuminate.STEPCHECKYESNO1.CHECK DTC.Is DTC of LAN system displayed- Read Diagnostic Troubl ...

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