Subaru Legacy BN/BS (2015-2019) Service Manual: Active test operation

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h6do) / Active test operation

CAUTION:

After executing the system operation check mode, execute the Clear Memory Mode. Clear Memory Mode > OPERATION

NOTE:

For detailed operation procedures, refer to “Application help”.

*: When the value of “Injection Quantity Control” under “Active Test” is changed from −12% — +12% while «Long term fuel trim B1» is −5%, the value of «A/F Sensor #1» will be changed to 0.92 or 1.17.

Item		SSM display		Execution condition
Activating the actuator ON/OFF	Activating the fuel pump ON/OFF	Fuel Pump Relay	ON ←> OFF	Ignition switch is ON (engine OFF)
	Activating the purge control solenoid valve ON/OFF	CPC Solenoid Valve	ON ←> OFF
	Activating the radiator fan relay ON/OFF	Radiator Fan Relay	ON ←> OFF
	Activating the ELCM switching valve ON/OFF	ELCM switching valve	ON ←> OFF
	Activating the ELCM vacuum pump ON/OFF	ELCM pump	ON ←> OFF
Fuel pump control	Fuel pump OFF operation	OFF Drive	OFF	At idling
Fixing the timing of idle ignition		Fixed Idle Ignition Timing	16.0°	At idling
Idle speed control		Idle Speed Control	500 — 2000 rpm	At idling
Injector control	Stopping fuel injection (Cylinder selection)	Injection Stop Mode	Injector 1 Injector 2 Injector 3 Injector 4 Injector 5 Injector 6	At idling
Injector control	Fuel injection amount control (All cylinders)	Injection Quantity Control	−13 — 20%	At idling*
EGR control valve control		EGR Valve Control	0 — 255 STEP	At idling
Alternator control		Alternator control	Low mode Middle mode High mode ExHigh mode	At idling
Compression measurement		Compression monitor	—	• Ignition switch is ON (engine OFF) • Accelerator pedal is fully depressed

Engine (diagnostics)(h6do)

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Basic diagnostic procedure procedure

1. ENGINESTEPCHECKYESNO1.CHECK ENGINE START FAILURE.1) Ask the customer when and how the trouble occurred using the interview check list. Check List for Interview > CHECK2) Start the engine.Does the ...

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