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HOMESERVICE MANUALSSUBARU2005OUTBACK I, STANDARDREPAIR AND DIAGNOSISENGINE PERFORMANCETESTING & DIAGNOSISENGINE CONTROLS - ENGINE (DIAGNOSTICS) (H4SO)DIAGNOSTIC PROCEDURE WITH DIAGNOSTIC TROUBLE CODE (DTC)DTC P0519 IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE)
2005 Subaru Outback i, Standard

DTC P0519 Idle Control System Malfunction (Fail-Safe)

2005 Subaru Outback i, StandardSECTION DTC P0519 Idle Control System Malfunction (Fail-Safe)

DTC DETECTING CONDITION: 

TROUBLE SYMPTOM: 

Engine keeps running at higher revolution than specified idling revolution.

CAUTION: After repair or replacement of faulty parts, conduct Clear Memory Mode < Ref. to ,  OPERATION  , Clear Memory Mode.> and Inspection Mode < Ref. to ,  PROCEDURE  , Inspection Mode.>. 

WIRING DIAGRAM: 

Fig 1: DTC P0519 Circuit
G03828496Courtesy of SUBARU OF AMERICA, INC.
DTC P0519 DIAGNOSIS

Step Check Yes No
1. CHECK FOR ANY OTHER DTC ON DISPLAY.  Is any other DTC displayed? Inspect the relevant DTC using "List of Diagnostic Trouble Code (DTC)". < Ref. to , LIST OF DIAGNOSTIC TROUBLE CODE (DTC) . >
NOTE: In this case, it is not necessary to inspect DTC P0519.
 Go to step 2. 
2. CHECK AIR INTAKE SYSTEM. 
  1. Turn the ignition switch to ON.
  2. Start the engine, and idle it.
  3. Check the following items.
  • Loose installation of intake manifold and throttle body
  • Cracks of intake manifold gasket and throttle body gasket
  • Disconnections of vacuum hoses
 Is there any fault in air intake system? Repair the air suction and leaks. Go to step 3. 
3. CHECK ELECTRONIC THROTTLE CONTROL. 
  1. Turn the ignition switch to OFF.
  2. Remove the electronic throttle control.
  3. Check the electronic throttle control.
 Are foreign matters in found inside the electronic throttle control? Remove foreign matters from the electronic throttle control. Perform the diagnosis of DTC P2101.
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.