P0016 Code: Camshaft Position A – Camshaft Position Correlation (Bank 1)

The P0016 error code concerns the camshaft and crankshaft. If your vehicle develops an issue that causes these two shafts to fall out of sync, the ECM/PCM may set a P0016 DTC.

What Does the P0016 Code Mean?

Diagnostic trouble code (DTC) P0016 stands for Camshaft Position A – Camshaft Position Correlation (Bank 1). The P0016 code indicates that your car’s primary computer, which is also known as the powertrain control module (PCM), perceives the difference between the crankshaft position and camshaft position to be greater than specification. 

The PCM determines the position of the two shafts using information from a crankshaft position sensor and camshaft position sensor(s). If from the sensor data, the PCM determines the crankshaft and camshaft(s) are not in sync, it will set code P0016 and turn on the Check Engine Light.

For more information on how the camshaft can trigger OBD codes like P0016, read our technical discussion about the camshaft and crankshaft.

An understanding of variable valve timing (VVT) systems could also help you address P0016. Read our advanced technical discussion about VVT systems.

Otherwise, you may continue reading for the possible causes of code P0016.

What are the Possible Causes of the P0016 Code?

When the PCM issues a code P0016, the car may be experiencing one of these issues:

• Stretched or damaged timing chain or timing belt
• Damaged camshaft or crankshaft reluctor wheel
• Bad crankshaft sensor
• Bad camshaft sensor
• Damaged wiring or loose connections
• Damaged timing chain/belt tensioners or guides
• Defective variable valve timing (VVT) actuator (aka phaser)
• Faulty variable valve timing (VVT) solenoid (aka oil control valve)
• A problem with the PCM, such as software in need of an update
• Low oil level

What are the Common Symptoms of the P0016 Code?

As with other OBD-II trouble codes involving the engine, the Check Engine Light will switch on to warn you about the problem.

Other signs of a code P0016 include:

• Engine cranks up but doesn’t start
• Engine experiences rough start-ups, even though it runs afterward
• Engine runs poorly despite starting up
• Rattling sounds from the engine 

How to Diagnose the P0016 Code

Because P0016 has so many potential causes, it’s best to have a professional technician diagnose the issue. Technicians have the skill, experience, and equipment to quickly determine what’s triggering the P0016. 

For example, they have oscilloscopes that can check the cam and crank patterns for signs of a bad sensor or a slipped tone ring.

However, if you have confidence in your auto repair skills, you can look for the cause of the P0016 code yourself. Here are a couple of videos to help you get an idea of what is involved in a P0016 OBD-II code diagnosis:  

How to Fix the P0016 Code

OBD-II trouble codes rarely (if at all) have a one-size-fits-all solution—the same goes for the P0016 code. Therefore, possible fixes will depend on a variety of factors.

If you’re unsure about DIY repair skills, it’s best to consult with a mechanic. However, if you are confident in your know-how and want to attempt the fix on your own, repair manuals, such as those from Chilton, are a good resource. 

You may also want to get an ALLDATA subscription if you’re serious about DIY auto repair. They have single-vehicle subscriptions for DIYers that provide detailed factory repair information.

Also, remember that every vehicle is different, so make sure to check your owner’s manual before attempting any repairs.

Where To Buy Parts to Fix the P0336 Code

To resolve the P0336 code, you’ll often need to replace either the crankshaft position sensor or the camshaft position sensor. Failing to do so can cause your engine to stall, stop, or guzzle more gas than usual, costing you both time and money. That’s why it’s good to address the problem as soon as possible. Thankfully, you can find both these sensors at CarParts.com.

CarParts.com has a built-in vehicle selector that allows you to easily search our selection of high-quality aftermarket parts that will surely fit your vehicle. In addition, you can avail of our friendly and helpful customer service when purchasing from our website. We even offer round-the-clock support after you buy.

Don’t drive with faulty parts. Order your new sensors at CarParts.com today and get your car back on the road!

Products Mentioned in this Guide

Camshaft Timing Belt Crankshaft Position Sensor Camshaft Position Sensor Oil Control Valve