P0339 is a diagnostic trouble code that means “Crankshaft Position Sensor A Circuit Intermittent.” A mechanic needs to diagnose why this code is triggered in your case, as it can occur for multiple reasons.
There is a problem with the car’s crankshaft position sensor A circuit, which is why the P0339 code appears on the computer display. A voltage reading that exceeds the manufacturer’s maximum has been detected in this case.
P0339 Honda codes indicate that the car’s computer has detected a voltage variation outside the manufacturer’s maximum set for the crankshaft position sensor.
Manufacturers’ settings are usually not allowed to differ more than 10% from actual readings. A pending code should be stored on the computer after three instances trigger the Check Engine light.
P0339 OBD-II Trouble Code: Crankshaft Position Sensor A Circuit Intermittent
Do you need help understanding the meaning of a P0339 code and how to resolve it? For more information about code P0339, read this article.
What Does the P0339 Honda Code Mean?
Crankshaft position sensors, also known as crank position sensors, are electronic devices used to measure the speed at which the crankshaft spins.
The Electronic Control Module (ECM) controls ignition and fuel injection based on this information. There are two parts to a sensor system: the rotating part, for example, a disc, and the static part, the sensor itself.
Engine operations cause the gap with the sensor to change as the high and low portions of the teeth change. Magnetic field changes near the sensor due to the changing gap. Voltage from the sensor changes as the magnetic field changes.
Code P0339 Honda: What Are The Possible Causes?
P0339 codes can be set in the car’s computer for various reasons. The following factors commonly cause the error code P0339:
- Broken timing belts wrap around sensor systems, causing damage
- Batteries that are dead or weak
- The reluctor rings are broken, or the teeth are missing
- Circuit for starting the system
- There may be a problem with the starter motor
- There may be damage to the signal plate
- There is a poor electrical connection in the crankshaft position sensor circuit
- There is an open or shorted crankshaft position sensor harness
- The crankshaft position sensor is faulty
What Are The Symptoms Of The P0339 Code?
Other diagnostic trouble codes may also be stored depending on the severity of the problem. Additionally, the check engine light will illuminate. If your vehicle has a P0339 trouble code, you may experience the following symptoms.
It is important to note that the symptoms of the P0339 code vary depending on the cause, but they include the following:
- There are no symptoms to note
- When the engine is running, the tachometer does not register RPMs
- The check engine light is on
- Fuel economy is reduced
- The performance of the engine is reduced
- Idling at a rough speed
- When accelerating, there is a hesitancy
- Misfiring of the engine
- Acceleration is rough
- There is no start
What Is The Diagnosis Of The P0339 Code?
Diagnostics for the P0339 code begin with an OBD-II scanner connected to the car’s communication port. Next, mechanics read and clear stored codes. A test drive will need to be conducted to verify that the regulations have been reset (if possible).
After inspecting the crankshaft position sensor wiring harness and connectors, the mechanic should check the crankshaft position sensor wiring harness.
Sometimes the problem is caused by corrosion of connections or deterioration of the wiring harness, which can eat through wiring covers due to exposure to engine oil. A damaged or loose connection must be repaired or replaced if found.
In case the problem persists, a crankshaft position sensor test may be required. The sensor may need to be removed from the vehicle to be tested properly.
P0339 Code Diagnosis Mistakes
In diagnosing the P0339 code, one of the most common mistakes is assuming it is the crankshaft position sensor itself and not performing a complete analysis. In addition, damage to the wiring harness caused by engine oil exposure is one of the most common causes of the P0339 code.
Having A Problem With The P0339 Code? Here’s How To Fix It.
P0339 shares many of the same symptoms and triggers as many other OBD-II codes. However, there is no universal solution to this problem. Leaving automotive repair to the professionals is the best course of action if you aren’t confident in your abilities.
Any CKP sensor malfunction or PCM programming error could trigger the P0339 code, so you must thoroughly investigate. In most cases, crankshaft position sensors need to be replaced to resolve this issue.
It is important to keep in mind that every vehicle is different. Therefore, before DIYing, any repairs, consult your owner’s manual and the factory repair information.
What Repairs Can Be Done To Fix The P0339 Honda Code?
The P0339 error code can be fixed in a variety of ways depending on what caused it in the first place:
- Damaged wiring needs to be repaired or replaced
- Loose connections should be repaired
- The repair of oil leaks that cause the wiring to degrade
- The replacement of a failed crankshaft position sensor
- The reluctor rings need to be replaced when they are broken
P0339 Code Comments For Consideration
Mechanics must thoroughly inspect and diagnose the problem since there can be multiple causes and a failed sensor is not always the underlying cause. By eliminating this possibility, you will be less likely to waste money on an expensive repair that does not solve the problem.
Honda P0339 Code: How Serious Is It?
Although you may not experience any drivability issues with P0339, it is a severe code. Regardless of the cause, wiring harness damage or loose connections will only worsen the situation, potentially leaving you stranded. It is essential to have the problem diagnosed as soon as possible.
A generic powertrain code (P0339) indicates a problem with the vehicle’s powertrain, so OBD-II-equipped vehicles will have this code. Even though the repair steps are generic, they may vary depending on the make/model.
If the powertrain control module (PCM) detects an intermittent or erratic voltage signal from the secondary crankshaft position (CKP) sensor on your vehicle, a stored code P0339 is displayed. Sensor B refers to a secondary CKP sensor in an OBD II system that uses multiple CKP sensors.