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Home >> Subaru >> 2019 >> Outback 2.5i >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System (2.5L) (Diagnostics - Introduction) >> Active Test >> Operation
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Active Test: Operation

CAUTION: After executing the system operation check mode, execute the Clear Memory Mode. Ref. to ENGINE (DIAGNOSTICS) (H4DO)>CLEAR MEMORY MODE>OPERATION .
NOTE: 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».
  4. On «Select System» display, select «Engine Control System» and then select «Enter».
  5. On «Select Function» display, select «Active Test».
Active test items Contents Execution condition
Fuel Pump Relay ON/OFF of the fuel pump can be set. Ignition switch is ON (engine OFF)
CPC Solenoid Valve ON/OFF of the purge control solenoid valve can be set.
Radiator Fan Relay ON/OFF of the radiator fan relay can be set.
ELCM switching valve ON/OFF of the leak check valve assembly switching valve can be set.
ELCM pump ON/OFF of the leak check valve assembly vacuum pump can be set.
Fuel Pump Control (OFF Drive) Fuel pump can be set to OFF. At idling
Fixed Idle Ignition Timing Ignition timing is set to 2.8 - 15° depending on the engine speed. At idling
Idle Speed Control Idle speed can be set to 500 - 2000 rpm. At idling
Injection Stop Mode (Injector 1) Injection Stop Mode (Injector 2) Injection Stop Mode (Injector 3) Injection Stop Mode (Injector 4) Injector of each cylinder can be set to stop the fuel injection. At idling
Injection Quantity Control The amount of fuel injection can be set to -13.5 - 20%. At idling
EGR Valve Control (Step) EGR control valve can be set to 0 - 52 STEP. At idling
Alternator control Alternator control mode can be set to one of the followings:
Low mode
Middle mode
High mode
Ex-High mode(2)		 At idling
Active Grille Shutter Control(1) Open ←→>close of the active grille shutter can be set.
  • Ignition switch is ON (engine OFF)
  • Experienced 20 seconds or more of the elapsed time after starting engine (when replacing ECM)
Compression monitor Compression can be measured.
  • Ignition switch is ON (engine OFF)
  • Accelerator pedal is fully depressed
(1) After replacing ECM or active grille shutter, be sure to perform this procedure.

(2) Indicator voltage is the same as in High mode.
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