Faced with an illuminated Check Engine light on the dashboard, car owners Nissan They often see error code P0335. This is not just a random failure, but a signal of a critical problem in the engine management system associated with a lack of signal from the crankshaft position sensor. Without correct data on the position and speed of the shaft, the engine control unit (ECU) cannot synchronize fuel supply and spark generation, which makes starting the engine impossible or extremely unstable.
Ignoring this malfunction can lead to serious consequences, including stopping the engine while running, loss of power, or even mechanical damage to the internal components of the motor. In modern models Nissan Qashqai, X-Trail and Teana the electronics reacts to this failure instantly, putting the car into emergency mode or completely blocking the start. Understanding the nature of the error and the algorithm of actions will help you save time and money on repairs.
What does the P0335 code mean and how does the system work?
Error P0335 stands for “Crankshaft Position (CP) Sensor Circuit Malfunction.” The sensor (DPKV) is one of the key elements of the ignition and fuel injection system. It generates an electrical impulse every time a flywheel or pulley tooth passes the sensor's sensing element. This signal allows the ECU to accurately determine the angle of rotation of the shaft and its angular velocity.
If the signal is missing, interrupted or has an incorrect form, the controller detects a violation in the circuit. This can happen for various reasons: from physical damage to the wire to failure of the magnetic sensor itself. In some cases, the problem lies in the violation of the gap between the sensor and the pulley, which must be strictly regulated by the manufacturer.
Engine management system Nissan uses DPKV data to calculate injection and ignition timing. Without this information, synchronization between the camshaft and crankshaft is lost, making engine operation impossible. This is why when P0335 appears, the car often starts and immediately stalls, or refuses to start at all.
The main reasons for the failure
There can be several reasons for the error, and they range from simple electrical contacts to complex mechanical damage. The most common problem is a violation of the integrity of the wiring or oxidation of the contacts in the sensor connector. In Russian winter conditions and reagents, contacts can quickly corrode, which leads to signal loss.
- 🔌 Damage to the wiring harness: breakage, chafing of insulation or short circuit to ground.
- ⚙️ Malfunction of the sensor itself: loss of magnetic properties or failure of internal electronics.
- 🔧 Mechanical misalignment: incorrect clearance between sensor and flywheel ring gear.
- 🧲 Contamination: the presence of metal shavings on the tip of the sensor, blocking the signal.
It is also worth considering that in series engines QR25 or VQ35 A common problem is the toothed disc, which can become dislodged or lose teeth. In rare cases, the error occurs due to problems with the ECU, although this happens much less often than a sensor or wiring failure. Diagnostics should begin with checking external components.
Symptoms of malfunction and vehicle behavior
When an error occurs P0335, the car's behavior becomes predictably unpleasant. The most obvious sign is that the engine will not start. The starter turns the motor, but it does not engage, since the control unit does not see at what moment to give a spark. In some cases, the engine may start, but immediately stalls.
If the car does drive, you may notice sudden drops in power, jerky acceleration, and unstable idle speed. The Check Engine light may flash, indicating a misfire, which is dangerous for the catalytic converter. In cars with a CVT (X-Trail, Qashqai) the transmission fault indicator may also come on because the ECU cannot calculate the load correctly.
It is important to note that some models Nissan The error may appear periodically. The car may start normally in cold weather, but refuse to run when the engine warms up, indicating temperature instability of the sensor or wiring. This makes diagnostics difficult, since when the scanner is connected in a cold state, the error may already be reset.
⚠️ Attention: If the engine stalls while driving, do not try to start it repeatedly at once. This can lead to overfilling of the cylinders with gasoline and further problems with the catalyst.
- Nissan Qashqai
- Nissan X-Trail
- Nissan Teana
- Nissan Almera
- Another Nissan
Do-it-yourself diagnostics and testing of the sensor
Before changing parts, you must verify the cause of the malfunction. First, visually inspect the crankshaft position sensor connector. It is usually located at the bottom of the engine, near the flywheel or crankshaft pulley. Check the contacts for any traces of oil, dirt or oxidation.
The next step is to check the resistance of the sensor with a multimeter. To do this, disconnect the connector and switch the device to measurement mode with an ohmmeter. Measure the resistance between the sensor contacts. The values should match your model's specifications, usually ranging from 500 to 1500 ohms. If the device shows “infinity” or “0”, the sensor is faulty.
Don't forget to check the integrity of the wiring. Ring the wires from the sensor connector to the ECU connector. Make sure there are no breaks or shorts to the housing. Also check for supply voltage at the connector when the ignition is on. No power will indicate a problem in the fuse or relay circuit.
- 🛠️ Use a quality multimeter for accurate measurements.
- 🧽 Clean the sensor tip from metal shavings with a soft cloth.
- 📏 Check the gap between the sensor and the toothed disk (usually 0.5–1.5 mm).
- 💡 Inspect the crankshaft pulley for missing teeth.
☑️ Checking the DPKV sensor
Step-by-step instructions for replacing the sensor
If diagnostics confirm a malfunction of the sensor itself, it must be replaced. The process does not require sophisticated equipment, but it does require accuracy. Before starting work, be sure to disconnect the negative terminal of the battery to avoid a short circuit or accidental starting of the engine.
Remove the sensor by unscrewing the fastening bolt. Some models Nissan access to the sensor may be difficult, and additional protection elements or other units will have to be removed. Be careful not to damage the wiring when removing the old sensor. The new sensor must be original or a high-quality analogue, since cheap fakes are often unstable.
Install the new sensor, maintaining the correct clearance. Often, a plastic gasket included in the kit or a special probe is used for this. Tighten the mounting bolt to the recommended torque to avoid stripping the threads or damaging the sensor housing. After installation, connect the connector and check the operation of the engine.
1. Отсоединить минусовую клемму АКБ2. Снять разъем с датчика ДПКВ
3. Открутить крепежный болт (обычно Torx или под ключ 10)
4. Извлечь старый датчик
5. Очистить посадочное место
6. Установить новый датчик с прокладкой
7. Закрутить болт и подключить разъем
8. Подключить АКБ и проверить запуск
What to do if the sensor is jammed?
If the sensor is stuck, do not use brute force. Use a penetrating lubricant (WD-40) and let it sit for 10-15 minutes. Try gently rocking the sensor from side to side to break up the rust.
Resetting errors and checking the result
After replacing the sensor, it is necessary to erase the error from the ECU memory. To do this, you can use an OBDII diagnostic scanner or disconnect the battery for 10-15 minutes (although the second method can reset other settings, such as time and radio stations). After the reset, start the engine and let it idle.
Check to see if the Check Engine light comes on. If everything is done correctly, the error should not return. However, to ensure stable operation, it is recommended to drive the car in different modes: city driving, acceleration, highway. This will allow the ECU to adapt and confirm that there are no errors in the operating cycles.
If P0335 returns immediately or after a short time, the problem is not with the sensor itself. There may be a problem with the wiring, the crankshaft pulley, or even the control unit. In this case, more in-depth diagnostics will be required using an oscilloscope to analyze the waveform.
Correctly setting the gap and using a quality sensor is the key to ensuring that the P0335 error does not return in the near future.
Cost of repairs and selection of spare parts
The cost of troubleshooting a P0335 code depends on what exactly is broken. The crankshaft position sensor itself is relatively inexpensive, especially if you choose high-quality analogues. However, the work to replace it can vary from 500 to 3000 rubles, depending on the availability of the unit and the car model.
| Component | Approximate price (RUB) | Recommendation |
|---|---|---|
| DPKV sensor (Original) | 3000 - 6000 | Best choice for durability |
| DPKV sensor (Analog) | 1000 - 2500 | Suitable for limited budgets |
| Replacement work | 800 - 2500 | Depends on the difficulty of access |
| Diagnostics (scanner) | 500 - 1500 | Mandatory for an accurate diagnosis |
When choosing a spare part, pay attention to the markings and the presence of protective packaging. Original sensors Nissan often have higher reliability, but also high-quality analogues from trusted brands (for example, Denso, Calsonic) can last a long time. Avoid buying “no-name” products from markets, as they often give false readings.
⚠️ Attention: Do not skimp on the sensor. A cheap, low-quality sensor can fail within a month and leave you stranded on the road again.
Keep the receipt and box from the new sensor. If it turns out to be defective, you can easily return it to the store within the warranty period.
Prevention and operating tips
To avoid recurrence of the P0335 code, regularly visually inspect the electrical connections under the hood. This is especially true after washing the engine or getting the car into deep water. Moisture and dirt are the main enemies of electronics.
Monitor the condition of the crankshaft pulley. When replacing a timing belt or serpentine belt, be sure to check the integrity of the ring gear. Mechanical damage here may not be visually noticeable, but it is guaranteed to cause malfunction of the sensor. It is also recommended to use high-quality oils and filters, since engine wear products can settle on the sensor.
If you live in a region with harsh winters, insulate the engine compartment or use a pre-heater. Sudden temperature changes can cause wire insulation to crack or plastic connectors to deform, causing an open circuit.
- 🛡️ Regularly clean the sensor contacts from dirt and oil.
- 🔍 Check the condition of the wire insulation at every maintenance.
- 🌡️ Avoid overheating the motor so as not to melt the plastic of the connectors.
- 📉 Monitor the oil level so that chips do not fall into the sensor.
⚠️ Attention: If you change the sensor yourself, be sure to check that the new sensor has the same connector type and wire length as the old one.
Regular maintenance and careful driving will significantly reduce the risk of electronic errors, including P0335.
Why does P0335 only appear when the engine is hot?
This is often due to thermal expansion of the wires or the sensor itself. When heated, the insulation may lose its properties, or the contacts inside the sensor may expand, breaking the circuit. Oxidation of the contacts is also possible, which intensifies when heated.
Is it possible to drive to the service center in a car with error code P0335?
If the engine starts and runs, then theoretically it is possible, but it is risky. The car can stall at any time, especially under load. It is best to call a tow truck or have your car towed.
Does P0335 affect fuel consumption?
Yes, significantly. Due to improper timing of injection and ignition, the engine operates inefficiently, leading to excessive fuel consumption and increased emissions.
How to distinguish a sensor malfunction from an ECU malfunction?
First, the sensor and wiring are checked. If the resistance is normal, there is power, but there is no signal, and the pulley is intact, then suspicion falls on the ECU. ECU diagnostics require sophisticated equipment.
Do I need to reset adaptations after replacing the sensor?
In most cases, it is enough to simply reset the errors with the scanner. However, some models may require an idle speed adjustment procedure to keep the engine running smoothly.