Hours: 07–23 daily

TuningBot DTC Database · v4.37.15

P1515 Subaru - Idle air (IAC) control valve, circuit 3 - voltage high

Manufacturer-specific interpretation for Subaru. All interpretations of P1515

P · PowertrainEngineOBD2

What P1515 means

P1515
Idle air (IAC) control valve, circuit 3 - voltage high Subaru · engine Data confidence 80%

The control module detected that the Idle air (IAC) control valve, circuit 3 voltage stayed above the expected range. This is the manufacturer-specific definition used by Subaru.

Possible causes

  • Wiring
  • lAC valve
  • ECM

Related and nearby codes

How to read P1515

P

Powertrain: engine, transmission and driveline systems.

1

Manufacturer-defined range: the meaning can differ between brands.

515

Specific fault index within the subsystem.

Frequently asked questions about P1515

What does P1515 mean?

Idle air (IAC) control valve, circuit 3 - voltage high. The control module detected that the Idle air (IAC) control valve, circuit 3 voltage stayed above the expected range. This is the manufacturer-specific definition used by Subaru.

Is P1515 generic or manufacturer-specific?

P1515 is a manufacturer-specific code. In this database it is documented for: Subaru. The same number can mean something different on other brands.

Can TuningBot remove P1515 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

ECU tuningDyno-tested results by model and engine See the results →

← Search the full DTC database