Skip the auto shop - Our mechanics make house calls

P2009 OBD-II Trouble Code: Intake Manifold Runner Control Circuit Low Bank 1

check engine light logo

P2009 trouble code definition

P2009 is a general OBD2 diagnostic trouble code indicating a fault within the intake manifold runner control circuit.

This code is similar to P2005, P2006, P2007, P2008, P2010, P2013 and P2015.

What the P2009 code means

P2009 means the intake manifold runner control circuit has excessively low voltage for bank 1. Once the ECU figures out that low voltage is present in the intake manifold runner control circuit a Check Engine Light will be triggered.

The Check Engine Light will be displayed on the dashboard and may be accompanied by a failsafe mode which will remain in effect until the code is cleared or normal voltage is detected.

What causes the P2009 code?

  • Wiring harness has an open or short
  • Faulty or stuck intake manifold runner
  • Electrical connection that is less than optimal
  • Intake manifold runner control solenoid has failed.

What are the symptoms of the P2009 code?

  • In some cases the driver may only notice the Check Engine Light without any other symptoms.

  • Some other vehicles may find the engine lacks power at lower RPMs and seems to run erratically.

How does a mechanic diagnose the P2009 code?

  • A mechanic will begin by hooking up a scan tool to the ECU through the DLC port. This provides access to the history, pending, and current codes that include the freeze frame data which tells technicians what the vehicle was doing when the code was set.

  • The scan tool will be used to clear all of the codes from the ECU.

  • Next, the vehicle will be test driven to try to duplicate the malfunction.

  • Once the malfunctions are duplicated, a visual inspection is needed looking for anything blatantly futile or damaged.

  • The scan tool is then used to monitor intake manifold runner position and solenoid operating throughout the engine rain.

  • Lastly, the intake manifold runner will be checked for the proper voltage.

Common mistakes when diagnosing the P2009 code

  • Mistakes can be made when the intake manifold runner is replaced when the fault lies with the flaps getting stuck.

  • Step by step diagnosis is required to avoid and prevent shoddy work effort.

How serious is the P2009 code?

The P2009 code will not prevent the vehicle from driving to a safe location once the code has been triggered. As with any code it should be repaired as soon as possible for normal vehicle operation.

What repairs can fix the P2009 code?

Additional comments for consideration regarding the P2009 code

An advanced level scan tool is incredibly useful for diagnosis of P2009. These scan tools let technicians view live data which in turns can show if a sensor or solenoid is functioning properly or not quick.

Need help with a P2009 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

The statements expressed above are only for informational purposes and should be independently verified. Please see our terms of service for more details
Icon-warranty_badge-02

Skip the repair shop, our top-rated mechanics come to you.

At your home or office

Choose from 600+ repair, maintenance & diagnostic services. Our top-rated mechanics bring all parts & tools to your location.

Fair & transparent pricing

See labor & parts costs upfront, so you can book with confidence.

12-month, 12,000-mile warranty

Our services are backed by a 12-month, 12,000-mile warranty for your peace of mind.

Get A Quote

Need Help With Your Car?

Our certified mobile mechanics make house calls in over 2,000 U.S. cities. Fast, free online quotes for your car repair.

GET A QUOTE

More related articles

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance Related Trouble Codes: P2158: Vehicle Speed Sensor B P2160: Vehicle Speed Sensor B Circuit Low P2161:...
P2422 OBD-II Trouble Code: Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed
Diagnostic Trouble Code (DTC): P2422 P2422 code definition Evaporative Emissions Control System (EVAP) Vent Valve Stuck Closed Related Trouble Codes: P2441: EVAP Vent Valve Stuck Open EVAP trouble...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...


Related questions

Q: intake control solenoid voltage

If the issue persists then it may be possible that the issue is with wiring or computer. Damaged wiring or a faulty computer may compromise power to the solenoid and affect its performance. Many automotive electronic circuits use 12 volts...

Q: Check Engine Light came on gave me a O2 sensor code. A week later the car broke down and won't start. It now has catalytic converter code.

It is helpful if you include the codes numbers. There are numerous O2 sensor and catalytic converter codes. There are two O2 sensors on your car. One is monitors the fuel ratio and the PCM (powertrain control module) uses it...

Q: Check Engine light on the Dashboard.

Hi there. The code P0420 could have an issue with the following: Having a damaged or failed oxygen sensor The engine coolant temperature sensor is malfunctioning Damaged or leaking exhaust manifold or leaking muffler / catalytic converter The spark...