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Diagnostic Trouble Code: 7
Diagnostic Trouble Code Name: Automatic Temperature Controller
Vehicle Make: Holden
Vehicle Model: Epica (V250)
Diagnostic Code Entered By: ZerOne
Diagnostic Code Entered On: Wed Oct 06, 2010 11:00 pm
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Please Note: The DTC Information provided has been randomly generated.
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Diagnostic Trouble Code Description:
Idle air control system condition, RPM higher than expected.
DTC P0507 is reported if the idle speed (engine RPM) is higher than expected-low idle speed during self-test
Possible Mechanical Faults
Faulty Idle Air Control Valve (IAC) valve or gasket, faulty or damaged positive crankcase ventilation system, leaking o-ring at fuel injector. vacuum leak in manifold; hole in inlet manifold, damaged gasket at inlet manifold, damaged, broken or missing vacuum hose. IAC valve not properly fastened loose or sticking or binding throttle linkage, improper adjustment of throttle stop screw. NOTE: idle speed is controlled by the IAC. The throttle stop screw must not be adjusted.
Possible Sensor Faults
IAC signal open circuit, IAC signal shorted to ground
Possible Wiring Faults
IAC signal open circuit, IAC signal shorted to ground
Possible Module Faults
Faulty IAC valve, faulty or damaged PCM
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