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Diagnostic Procedure with Diagnostic Trouble Code (DTC)
BU:DTC P0519 IDLE AIR CONTROL SYSTEM PERFORMANCE
DTC DETECTING CONDITION:
Immediately at fault recognition
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 EN(H6DO)(diag)-41,
OPERATION, Clear Memory Mode.> and Inspection Mode <Ref. to EN(H6DO)(diag)-34, PROCEDURE,
Inspection Mode.>.
Step
1
CHECK ANY OTHER DTC ON DISPLAY.
2
CHECK AIR INTAKE SYSTEM.
1) Turn the ignition switch to ON.
2) Start and idle the engine.
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
3
CHECK ELECTRONIC THROTTLE CON-
TROL.
1) Turn the ignition switch to OFF.
2) Remove the electronic throttle control.
3) Check the electronic throttle control.
BV:DTC P0600 SERIAL COMMUNICATION LINK
NOTE:
For the diagnostic procedure, refer to LAN section. <Ref. to LAN(diag)-2, Basic Diagnostic Procedure.>
Check
Is any other DTC displayed?
Is there any fault in air intake
system?
Are foreign matters found
inside the electronic throttle
control?
EN(H6DO)(diag)-211
ENGINE (DIAGNOSTICS)
Yes
Check DTC using
Go to step 2.
the List of Diag-
nostic Trouble
Code (DTC). <Ref.
to
EN(H6DO)(diag)-
66, List of Diag-
nostic Trouble
Code (DTC).>
NOTE:
In this case, it is
not necessary to
inspect
DTC
P0519.
Repair air suction
Go to step 3.
and leaks.
Remove foreign
Perform the diag-
matters from the
nosis of DTC
electronic throttle
P2101.
control.
No
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