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

Subaru Legacy BN/BS (2015-2019) Service Manual / Engine (diagnostics)(h4do) / Active test operation

CAUTION:

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

NOTE:

• *: After replacing ECM or active grille shutter, be sure to perform this procedure.

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

1. On «Start» display, select «Diagnosis».

2. On «Vehicle selection» display, input the vehicle information and select «Confirmed».

3. On «Main Menu» display, select «Each System Check».

4. On «Select System» display, select «Engine Control System».

5. On «Select Function» display, select «Active Test».

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	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
Active grille shutter control*		Active Grille Shutter Control	Open Close	• Ignition switch is ON (engine OFF) • Experienced 20 seconds or more of the elapsed time after starting engine (when replacing ECM)
Compression measurement		Compression monitor	—	• Ignition switch is ON (engine OFF) • Accelerator pedal is fully depressed

Engine (diagnostics)(h4do)

...

Basic diagnostic procedure procedure

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