IAC System High RPM
Chrysler · engine
Data confidence62%
The control module detected a fault associated with the IAC System High RPM circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Recommended checks
Perform a full module scan
Review freeze-frame and occurrence data
Confirm the exact vehicle, ECU and software context
Leak Detection Pump Switch or Mechanical Fault
Dodge · engine
Data confidence62%
The control module detected a condition consistent with a leak affecting the Leak Detection Pump Switch or Mechanical. This is the manufacturer-specific definition used by Dodge.
The control module detected a fault associated with the MPS - High circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Hyundai.
Idle air control (IAC) valve - circuit malfunction
Jaguar · engine
Data confidence80%
The control module detected improper operation of the Idle air control (IAC) valve circuit. This is the manufacturer-specific definition used by Jaguar.
Idle air control (IAC) valve opening coil - malfunction
Land Rover · engine
Data confidence62%
The control module detected improper operation of the Idle air control (IAC) valve opening coil. This is the manufacturer-specific definition used by Land Rover.
Idle Speed Control Valve Opening Solenoid Control Circuit Electrical
MINI · engine
Data confidence62%
The control module detected a fault associated with the Idle Speed Control Valve Opening Solenoid Control Circuit Electrical circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by MINI.
Idle air control (IAC) valve - circuit malfunction
VAG · engine
Data confidence62%
The control module detected improper operation of the Idle air control (IAC) valve circuit. This is the manufacturer-specific definition used by Audi.
Possible causes
Wiring
IAC valve
Applies toAudi
P1509
Idle air control (IAC) valve - circuit malfunction
VAG · engine
Data confidence80%
The control module detected improper operation of the Idle air control (IAC) valve circuit. This is the manufacturer-specific definition used by Volkswagen.
Powertrain: engine, transmission and driveline systems.
1
Manufacturer-defined range: the meaning can differ between brands.
509
Specific fault index within the subsystem.
Frequently asked questions about P1509
What does P1509 mean?
Diagnostic Trouble Code (10 interpretations). The control module detected a fault associated with the IAC System High RPM circuit or function; the stored code identifies the affected component rather than a single failure mode. This is the manufacturer-specific definition used by Chrysler.
Is P1509 generic or manufacturer-specific?
P1509 is a manufacturer-specific code. In this database it is documented for: Chrysler, Dodge, Honda, Hyundai, Jaguar, Land Rover, MINI, Opel, VAG. The same number can mean something different on other brands.
Can TuningBot remove P1509 at file level?
If the fault logic lives in the ECU calibration, yes: our DTC Removal file service disables the specific fault entry and, where the ECU needs it, corrects the checksum too. Not sure whether your case qualifies? Request a free assessment and our engineers will check your ECU file.
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Chrysler
Dodge
Honda
Hyundai
Jaguar
Land Rover
MINI
Opel
VAG