Error P1320 on cars Nissan X-Trail is one of the most common problems in the ignition system, causing serious engine malfunctions. When you see this code on the scanner or notice the Check Engine light comes on, this indicates a violation in the ignition coil control circuit or a lack of signal from the crankshaft position sensor.
Ignoring this malfunction can lead to unstable operation of the motor, loss of power, and even to its complete stop while driving. Crossover owners Nissan X-Trail With QR or MR series engines, it is extremely important to understand the nature of this error in order to avoid costly engine repairs due to a simple failure of an electrical component.
The essence of the P1320 code and the principle of operation of the ignition system
Code P1320 technically stands for “No Crankshaft Position (CKP) Signal Pulse” or “Ignition Coil Control Circuit Malfunction.” The electronic control unit (ECU) constantly monitors signals from sensors to accurately calculate the ignition timing and fuel injection timing.
If the control unit does not receive a correct signal about the crankshaft position within a certain time, it records the error and puts the engine into emergency mode. In this mode Nissan X-Trail may work intermittently, trip or stall when trying to start. The system simply does not understand at what moment to fire the spark, as synchronization is lost.
A special feature of this system is that it uses the signal from the crankshaft position sensor not only to determine the ignition timing, but also as the main signal to synchronize the operation of all cylinders. Without this impulse, engine operation is impossible, so the ECU reaction is instantaneous and categorical.
Main causes of malfunction
List of potential error culprits P1320 is quite wide, ranging from simple oxidation of contacts to serious mechanical damage. The most common cause is the failure of the crankshaft position sensor itself, which over time loses sensitivity or breaks the internal circuit.
The second most popular factor is wiring problems. In the engine compartment Nissan X-Trail high temperatures and vibration lead to chafing of insulation, rupture of wires or oxidation of connectors. Often damage occurs at the junction with the sensor block or ignition coil.
Also, do not discount a malfunction of the ignition coil or ignition module. If the coil ruptures into the housing or loses its ability to generate high voltage, the ECU may interpret this as a lack of feedback signal, which will result in a P1320 code.
In rare cases, the problem lies in the ECU itself, but this happens extremely rarely and is usually a consequence of power surges in the on-board network. Mechanical damage to the ring gear on the crankshaft pulley can also cause signal loss, since the sensor simply will not be able to “read” the marks.
Vehicle symptoms and behavior
When the error appears P1320, behavior Nissan X-Trail becomes characteristic and easily recognizable to experienced drivers. The very first sign is difficulty starting the engine or its complete refusal to start, despite the fact that the starter turns properly.
If the engine does start, you will definitely notice unstable idle speed. The car will start to “triple”, the speed will fluctuate, and if you try to press the gas pedal sharply, the power may fail or the engine may stall. Engine vibration becomes noticeable even from the driver's seat.
The yellow Check Engine light illuminates on the dashboard. In some cases, the “Stability System” (VDC OFF) indicator may also light up, since the ECU blocks the operation of electronic safety systems in the event of critical engine failures.
Sometimes symptoms may only appear when the engine warms up or in damp weather when moisture gets into damaged wiring. This creates the illusion of a “floating” fault, which is difficult to diagnose without special equipment.
- QR25DE (2.5)
- MR20DE (2.0)
- QR20DE (2.0)
- Other
Stages of diagnostics and troubleshooting
The first step in diagnosis is to read the error codes and check that they are current. Use a professional diagnostic scanner connected to the connector OBD-IIto make sure that the P1320 error is not the only one. Sometimes it accompanies other codes related to the injection system.
A visual inspection of the engine compartment must be thorough. Pay special attention to the crankshaft position sensor connector and the wiring harness that goes to it. Look for traces of melting, breaks, insulation cracks or oxidation of contacts. Often the problem can be solved by simply cleaning or replanting the connector.
To check the sensor itself you will need a multimeter. It is necessary to measure the resistance of the sensor winding, which should usually be in the range from 200 to 1000 Ohms (the exact value depends on the engine model). If the device shows a “break” or “zero”, the sensor is faulty.
It is also important to check for spark at the spark plugs. If there is no spark in any cylinder, the problem definitely lies in the ignition control circuit or the absence of a synchronization signal. Check the integrity of the high-voltage wires and the condition of the spark plugs.
☑️ Checking the crankshaft sensor
⚠️ Attention: When checking the crankshaft position sensor, be sure to ensure that the engine has completely cooled down. High temperatures can distort multimeter readings and cause burns when touching parts.
How to test a sensor without a multimeter?
Without instruments, you can only visually assess the condition of the wiring and connectors. Some mechanics try to gently wiggle the sensor wire while the engine is running: if the speed changes or the engine stalls, it means there is poor contact at the break point. However, this method is unreliable and may result in a short circuit.
Technical specifications and parameter table
For correct diagnostics, it is necessary to navigate the technical parameters of the ignition system Nissan X-Trail. Below is a table with the main values to consider when checking components.
| Component | Nominal resistance | Allowable clearance | Supply voltage |
|---|---|---|---|
| Crankshaft Position (CKP) Sensor | 200–1000 Ohm | 0.5–1.5 mm | 5 V (signal) |
| Ignition coil (primary) | 0.4–0.6 Ohm | Not applicable | 12 V |
| Ignition coil (secondary) | 8000–12000 Ohm | Not applicable | Up to 35 kV |
| Camshaft Position (CMP) Sensor | 500–1500 Ohm | Not applicable | 5 V (signal) |
Please note that a resistance deviation of even 10-15% from the norm may indicate the beginning of degradation of the coil or sensor. When operating in harsh climatic conditions, these values may change, so it is better to rely on the factory specifications for a specific engine model.
The correct gap between the sensor and the ring gear is critical: too much clearance will result in signal loss, too little will result in mechanical damage to the sensor.
Troubleshooting methods
If the diagnosis shows a malfunction of the crankshaft position sensor, the only correct solution is to replace it. There is no point in repairing this unit, since it is a non-separable magnetoelectric element. Use original spare parts or proven analogues, such as Denso or NTK.
When replacing an ignition coil, make sure that you not only replace the coil itself, but also check the condition of the spark plugs. Old spark plugs with a broken insulator can create additional stress on the new coil, leading to its rapid failure. Don't skimp on candles by using the same brands as the manufacturer Nissan.
If the problem was in the wiring, it is necessary to restore the integrity of the circuit. Use heat shrink tubing and quality solder to connect the wires. Simple twisting with electrical tape in the engine compartment Nissan X-Trail will not last long due to vibrations and temperature changes.
After carrying out repair work, be sure to clear the error memory using the diagnostic scanner. Start the engine and check its operation in various modes: idling, acceleration, driving under load. If P1320 does not return after several ignition cycles, the repair can be considered successful.
Before installing a new sensor, be sure to apply a thin layer of lubricant to the O-ring and mounting location to ensure a seal and ease future installation.
⚠️ Warning: Never try to start the engine with the crankshaft position sensor disconnected. The ECU will not be able to generate a command for fuel injection and sparking, which will lead to flooding of the cylinders with gasoline and possible water hammer during subsequent startup.
What should I do if the error is returned immediately after clearing?
This indicates that the cause has not been completely eliminated. Check not only the sensor itself, but also the ground (grounding) of the ECU, as well as the integrity of the shielding braid of the wires, which may be damaged.
Prevention and recommendations for use
To avoid the error reappearing P1320, regularly visually inspect the electrical connectors in the engine compartment. This is especially true after long off-road trips or during the rainy season, when moisture and dirt actively affect the contacts.
Timely replacement of spark plugs and high-voltage wires also reduces the load on the engine management system. Worn spark plugs create high resistance, which can cause malfunctions of coils and sensors.
Avoid using low-quality fuel additives and low octane fuel. This not only harms the combustion chamber, but can also lead to detonation, which mechanically damages the ring gear on the crankshaft, causing sensor signal loss.
If you are planning a long trip, make sure the battery is in good condition. Low voltage in the on-board network can lead to incorrect operation of the ECU and false alarms related to the ignition system.
⚠️ Attention: When replacing the crankshaft sensor, be sure to check the condition of the ring gear on the crankshaft pulley. The absence or damage of several teeth will render the new sensor useless, since the signal will still not be generated correctly.
FAQ: Frequently asked questions
Is it possible to drive with error code P1320?
Momentary movement is possible if the engine is running, but this is not recommended at all. The car can stall at any time, especially at an intersection or when overtaking, which creates an emergency situation. It is better to immediately stop use and carry out diagnostics.
Does P1320 change to P0335?
Yes, these codes are very similar and are often interchangeable depending on the ECU firmware version. P0335 is a more general "Crankshaft Position Sensor Circuit Malfunction" code that also indicates a problem with the timing signal.
Will resetting the error without repair help?
No, resetting the error via a scanner or disconnecting the battery will only give a temporary effect. As soon as the ECU does not receive a signal from the sensor again (and this will happen at the first start), the error will return. The physical cause of the problem must be eliminated.
Which sensor most often fails on the X-Trail T31?
On the T31 generation with QR25DE engines, the crankshaft position sensor (CKP) itself most often fails due to overheating, and its connection connector also oxidizes. There is also a problem with broken wires inside the harness.
How much does the repair cost?
The cost of repair depends on the cause. Replacing the sensor will not cost much (price of the part + labor). If the problem is in the wiring or coil, the costs will increase. If the ring gear is damaged, the engine will need to be dismantled, which is the most expensive scenario.