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DTC P0519 IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE)

DTC P0519 IDLE CONTROL SYSTEM MALFUNCTION (FAIL-SAFE)

DTC DETECTING CONDITION:


• Immediately at fault recognition

• GENERAL DESCRIPTION


TROUBLE SYMPTOM:

Engine keeps running at higher revolution than specified idling revolution.

Important

After repair or replacement of faulty parts, conduct Clear Memory Mode and Inspection Mode .


WIRING DIAGRAM:


CHECK ANY OTHER DTC ON DISPLAY.

Is any other DTC displayed?

Yes

• Inspect the relevant DTC using “List of Diagnostic Trouble Code (DTC)”.

•
Note

In this case, it is not necessary to inspect DTC P0519.



No


CHECK AIR INTAKE SYSTEM.

Turn the ignition switch to ON.

Start the engine, and idle it.

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 a fault in air intake system?

Yes

Repair the air suction and leaks.


No


CHECK ELECTRIC THROTTLE.

Turn the ignition switch to OFF.

Remove the electric throttle.

Check the electric throttle.

Are there foreign particles in electric throttle?

Yes

Remove the foreign particles from electric throttle.


No

Perform the diagnosis of DTC P2101.