Fault code P0009 is called “Engine Positions System Performance (Bank 2)” but in different programs it may be called differently. This fault designation applies to all vehicles equipped with OBD-II.
Technical description and explained code P0009
This Diagnostic Trouble Code (DTC) is a generic powertrain code. Error P0009 is considered a general code because it applies to all makes and models of vehicles. Although the specific repair steps may vary slightly depending on the model.
The ECM uses sensors to determine the position of the crankshaft and camshaft. Using these signals, the ECM system controls ignition and fuel timing at different speeds and loads. If a malfunction occurs, the engine failure indicator lights up, possibly reducing the vehicle’s operability.
P0009 is a common OBD-II code that indicates an engine problem. The control module has detected changes in mechanical timing, between the crankshaft and camshaft. Bank 2 refers to the side of the engine that does not contain cylinder 1.
Symptoms of vehicle malfunctions
The main signal that an error P0009 has occurred is the Malfunction Indicator Lamp (MIL) is also known as the CheckEngine Light.
It can also be warning signs such as:
- Check engine control lamp on the control panel will light up (the code will be recorded in the ECM memory as a fault).
- Floating revolutions at idle.
- Engine power decrease.
- Increased fuel consumption.
- Bad acceleration.
- Noise in timing chain.
The severity level of error P0009 is quite high, therefore it is recommended to eliminate the problem as soon as possible. Because ignoring the problem for a long time can lead to more extensive and costly repairs. Over time, the performance of the vehicle may decrease so much that it simply cannot be driven.
Factors that can cause this error code
The error code P0009 can mean that one or more of the following problems have occurred:
- Worn timing parts (chains, gears, guides).
- Incorrectly adjusted timing chain.
- Problem with timing chain tensioner.
- Faulty crankshaft or camshaft position sensor.
- Damaged crankshaft or camshaft.
- Outdated ECM software, need to reprogram the module.
- Internal malfunction of ECM.
- Damaged electrical wiring.
How to fix or reset OBD-2 code P0009
Some suggested steps for troubleshooting and fix the error code P0009:
- Clear the error codes from the vehicle’s computer memory.
- Test-drive the vehicle to find out if code P0009 appears again.
- Perform a visual inspection and repair or replace damaged electrical leads if necessary.
- Replace timing components (chains, gears, belts, tensioners).
- Diagnose and replace faulty crankshaft or camshaft position sensors if necessary.
- Check that the timing marks on the crankshaft and camshaft sprockets match.
- If there is a problem with the ECM, reprogram or replace the engine control module.
Diagnose and repair of problems
If your car is fairly new and still under warranty on the transmission, be sure to let your dealer fix it. Typically, diagnosis and correction of fault code P0009 includes inspection of drive chains and tensioners. For excessive wear or misalignment. As well as checking the correct position of the drive wheel of the crankshaft.
Parts are then replaced as needed. There are service bulletins for some vehicles, and the fix is to replace the timing chains.
It is worth referring to the factory service manual for more information. For additional troubleshooting steps related to vehicle make and model.
On which vehicles does this problem occur most frequently
Fault code P0009 can occur on different vehicles but there are statistics on which brands this occurs most often. Here is a list of some of them:
- Buick
- Cadillac
- Hyundai
- Mazda
- Nissan
- Opel
- Renault
- Suzuki
Fault code P0009 can sometimes be found with other errors. The most common are the following: P0008, P0016, P0017, P0018, P0019.
