Acura
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) system - high RPM
Cause:
    Hose leak, throttle body, crankcase vent valve, wiring, IAC valve, ECM

Audi
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) valve - circuit malfunction
Cause:
    Wiring, IAC valve

BMW
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle speed control (ISC) actuator - malfunction
Cause:
    Wiring, ISC actuator

GM
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle Air Control System High RPM Conditions
Cause:
    Engine runtime 2 minutes, closed throttle, ECT input over 122°F, IAT over 62°F, VSS under 3 mph, then the PCM detected that the Actual idle speed was 175 rpm higher than Desired idle speed

Honda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) system - high RPM
Cause:
    Hose leak, throttle body, crankcase vent valve, wiring, IAC valve, ECM

Isuzu
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) system - high RPM
Cause:
    Wiring, IAC valve, mechanical fault, ECM

Jaguar
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) valve - circuit malfunction
Cause:
    Wiring short circuit, IAC valve, ECM

Mazda
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) valve 2 - short/open circuit
Cause:
    Wiring, IAC valve, ECM

Volkswagen
Type:
    Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description:
    Idle air control (IAC) valve - circuit malfunction
Cause:
    Wiring, IAC valve