P1509 OBD Trouble Code

9 results found

P1509 - 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
P1509 - Audi
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle air control (IAC) valve - circuit malfunction
Cause

Wiring, IAC valve
P1509 - BMW
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle speed control (ISC) actuator - malfunction
Cause

Wiring, ISC actuator
P1509 - 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
P1509 - 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
P1509 - Isuzu
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle air control (IAC) system - high RPM
Cause

Wiring, IAC valve, mechanical fault, ECM
P1509 - Jaguar
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle air control (IAC) valve - circuit malfunction
Cause

Wiring short circuit, IAC valve, ECM
P1509 - Mazda
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle air control (IAC) valve 2 - short/open circuit
Cause

Wiring, IAC valve, ECM
P1509 - Volkswagen
Type Powertrain - Manufacturer Controlled DTC - Manufacturer Controlled
Description

Idle air control (IAC) valve - circuit malfunction
Cause

Wiring, IAC valve

Try also: https://www.obd-codes.com/p1509