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HOMESERVICE MANUALSSUBARU2016LEGACY 2.5IREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT VARIANT/TRIMSECTION 15 (ENGINE CONTROLS (H6DO) (DIAGNOSTICS) (4 OF 5))DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC P050A COLD START IDLE CONTROL SYSTEM PERFORMANCEWIRING DIAGRAM
2016 Subaru Legacy 2.5i

DTC P050A Cold Start Idle Control System Performance: Wiring Diagram

2016 Subaru Legacy 2.5iSECTION Wiring Diagram
WARNING: This page is about a different variant/trim than selected.
  • Engine Electrical System ENGINE TYPE EZ (WITHOUT PUSH BUTTON START) < Ref. to appropriate wiring diagram in SYSTEM WIRING DIAGRAM article. >
  • Engine Electrical System ENGINE TYPE EZ (WITH PUSH BUTTON START) < Ref. to appropriate wiring diagram in SYSTEM WIRING DIAGRAM article. >
    Fig 1: Fuel Injector - Circuit Diagram
    G10264428Courtesy of SUBARU OF AMERICA, INC.
Fig 2: Electronic Throttle Control - Wiring Diagram
G10312425Courtesy of SUBARU OF AMERICA, INC.
DIAGNOSTIC PROCEDURE

Step Check Yes No
1 CHECK FOR ANY OTHER DTC ON DISPLAY.  Is any other DTC displayed? Check the appropriate DTC using the "List of Diagnostic Trouble Code (DTC)". < Ref. to LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . > Go to step 2  .
2 CHECK ENGINE OIL.  Is there a proper amount of engine oil? Go to step 3  . Replace engine oil. < Ref. to REPLACEMENT , Engine Oil. >
3 CHECK EXHAUST SYSTEM.  Are there holes or loose bolts on exhaust system? Repair the exhaust system. Go to step 4  .
4 CHECK AIR INTAKE SYSTEM.  Are there holes, loose bolts or disconnection of hose on air intake system? Repair the air intake system. Go to step 5  .
5 CHECK FUEL PRESSURE. 
WARNING: Place "NO OPEN FLAMES" signs near the working area.
RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.