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TuningBot DTC Database · v4.37.15

P0518 Idle Air Control Circuit Intermittent

Generic (OBD-II) interpretation in the TuningBot DTC database.

P · PowertrainEngineOBD2

What P0518 means

P0518
Idle Air Control Circuit Intermittent Generic · engine Data confidence 90%

The control module detected an unstable or intermittent signal in the Idle Air Control circuit.

Possible causes

  • Wiring
  • poor connection
  • lac valve
  • ECM

Related and nearby codes

How to read P0518

P

Powertrain: engine, transmission and driveline systems.

0

Generic SAE-standard code: same meaning on every make.

518

Specific fault index within the subsystem.

Frequently asked questions about P0518

What does P0518 mean?

Idle Air Control Circuit Intermittent. The control module detected an unstable or intermittent signal in the Idle Air Control circuit.

Is P0518 generic or manufacturer-specific?

P0518 is a generic OBD-II code: it has the same meaning on every make and model that follows the SAE standard.

Can TuningBot remove P0518 at file level?

If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry. Checksum correction is not included: it is a separate, optional service. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.

Other file services

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