Stability control and anti-lock braking system (ABS) are a critical safety element in a vehicle. Nissan X-Trail T30. When the error code 1320 light comes on on the dashboard, it indicates a serious malfunction in the sensors or electronic control unit. Crossover owners often encounter this problem after overcoming off-road conditions or when reaching a certain mileage, which requires immediate diagnosis.
Code 1320 indicates a violation in the wheel speed sensor signal circuit or incorrect operation of the ABS modulator. Ignoring such a warning may result in failure of the emergency braking system and loss of control on slippery roads. Unlike many other brands, where errors can be software, in Nissan X-Trail first generation (T30), this malfunction most often has a physical nature related to the wiring or the sensor itself.
Causes of failure in the ABS system
The main cause of code 1320 is a faulty wheel speed sensor. In design Nissan X-Trail T30 Inductive sensors are used, which over time lose their magnetic properties or become contaminated with metal shavings. If you notice that the error only appears when driving on uneven roads, most likely the problem lies in mechanical damage or poor contact.
Often the culprit is a break or short circuit in the wiring harnesses going to the wheel sensors. Due to constant friction against the suspension and exposure to reagents, the insulation is frayed, which leads to a violation of the integrity of the signal. The ABS control unit stops receiving correct data about the rotation speed of a particular wheel and displays error 1320 on the on-board computer display.
Another common cause is the failure of the ABS modulator itself or its electrical connector. Corroded contacts in the connector located on the hydraulic block may cause intermittent signal loss. In such cases, the error may disappear after the engine warms up or when the car is shaken, which makes initial diagnosis very difficult without specialized equipment.
- 🔍 Speed sensor: Physical damage or heavy contamination of the tip.
- 🔌 Wiring: Open circuit, oxidation of contacts in connectors or short to ground.
- ⚙️ ABS modulator: Failure of internal components of the hydraulic unit.
DIY fault diagnosis
The first step when error 1320 is detected is to visually check the condition of the wheel sensors and their wiring. You will need to raise the car on a lift or jack and carefully inspect the wiring harnesses running from each wheel to the body. Pay special attention to the bends of the wires, where chafing of the insulation often occurs.
For an accurate check, you must use a multimeter in resistance measurement mode. Disconnect the sensor connector and measure the resistance between the contacts. Normal value for sensors Nissan X-Trail T30 usually in the range of 1000 to 2000 ohms. If the device shows infinity or zero, the sensor requires replacement.
It is also important to check the circuit resistance for a short circuit to the vehicle body. One multimeter probe is connected to the sensor contact, and the second to a clean metal part of the body. The indicator should tend to infinity. Any resistance different from this value indicates a breakdown of the wiring insulation.
- ABS light stays on
- Error appears when driving
- The system works, but intermittently
- Error 1320 does not go away after reset
⚠️ Attention: Carry out all resistance measurements only with a cold engine and with the battery disconnected. Applying voltage to the sensor circuit during testing can lead to failure of the ABS control unit.
Technical characteristics and parameters of sensors
Understanding the technical parameters of ABS system components will help you more accurately determine the problem. Speed sensors on Nissan X-Trail T30 have their own specific tolerances, exceeding which is considered critical. Knowing these numbers will allow you to distinguish just an old sensor from a completely faulty one.
The table below shows the main characteristics that you should focus on when diagnosing. Please note that figures may vary slightly depending on the year of manufacture of the vehicle and the type of equipment installed.
| Parameter | Normal value | Fault value | Consequences |
|---|---|---|---|
| Sensor resistance | 1000–2000 Ohm | 0 Ohm or ∞ (infinity) | Loss of speed signal |
| Insulation resistance | More than 10 MOhm | Less than 500 kOhm | Short circuit to ground |
| Sensor gap | 0.5–1.5 mm | More than 2mm or 0mm | System malfunctions |
| Signal voltage | Variable 0.1–2 V | Constant or 0 V | ABS and ESP failure |
Wheel Speed Sensor Replacement Procedure
If diagnostics confirm that the sensor is faulty, it must be replaced. To do this, you will need a standard set of tools, including 10 and 12 wrenches, as well as screwdrivers. The replacement process does not require complicated dismantling of the suspension, but requires care when working with the fragile plastic of the connector.
First, remove the wheel and locate the sensor mounting location in the steering knuckle. Disconnect the electrical connector by pressing the latch. Then remove the mounting bolt that holds the sensor. Be careful, as the old sensor may be stuck, and if you try to remove it, you can damage the wiring.
Before installing a new element, clean the seat from dirt and rust. Make sure the magnetic tip of the new sensor is clean. Insert the sensor into place and tighten the bolt to the recommended torque to avoid stripping the threads. After installation, be sure to perform a resistance test of the new element before assembly.
☑️ Preparing to replace the sensor
Do not forget to check the integrity of the wires along the entire length to the ABS unit connector. It often happens that the new sensor is working, but the wiring leading to it has a hidden break inside the insulation. If the problem is not solved after replacement, it is necessary to ring the circuit to the control unit itself.
What to do if the new sensor does not help?
Sometimes the problem lies not in the sensor itself, but in the ring gear located on the hub. If there are chips, dirt or rust on the crown, the sensor will not be able to read the signal correctly. Clean the crown with a wire brush and check its integrity.
Troubleshooting wiring and connector problems
Often error 1320 occurs due to oxidation of contacts in the connector located on the ABS block itself. This connector is located under the hood, in the engine compartment, and is exposed to moisture and reagents. Over time, the contacts inside the connector can oxidize or burn, resulting in an unstable connection.
To fix the problem, you need to remove the connector from the unit, inspect the contacts and, if necessary, clean them with a special contact cleaning fluid or fine sandpaper. If the contacts are burnt, they will need to be tinned or the plug replaced. After cleaning, be sure to treat the connector with a water-repellent spray.
It is also worth paying attention to the wiring harness that goes from the connector to the sensors. At the junctions with the body, the wiring often rubs against sharp edges. If you find a damaged area, it must be insulated or replaced with a piece of wire of a similar cross-section. It is important to restore the integrity of the braid to avoid re-entry of moisture.
- 🧹 Cleaning: Use coupling fluid to remove oxides from the connector pins.
- 🛡️ Protection: Treat all connectors with silicone grease or special anti-moisture agent.
- 🔧 Repair: When a broken wire is found, use heat shrink tubing to insulate.
⚠️ Attention: Never attempt to repair wiring by simply twisting without soldering. Suspension vibrations will quickly destroy such a connection, and the error will return. Always use soldering and high quality insulation.
Resetting the error and checking the system after repair
After all repair work has been completed, it is necessary to reset the error from the control unit memory. Just disconnect the battery Nissan X-Trail T30 often does not help, since error 1320 is stored in non-volatile memory. You will need a diagnostic scan tool that can interface with the ABS system.
Connect the scanner to the OBDII diagnostic connector, which is located under the steering column. Start the engine and go to the ABS diagnostic menu. Select the "Error Reset" or "Clear DTC" function. After the reset, the indicators on the dashboard should go out, which will confirm that the problem has been successfully resolved.
If you don't have access to a professional scanner, you can try the "dry run" method. Drive a car at speeds over 20 km/h for several minutes. If the error does not return, then the problem is resolved. However, to be completely sure, it is better to use equipment.
Before resetting errors, be sure to check the brake fluid level in the reservoir. Insufficient levels can cause false system alarms and re-appearance of fault codes after a reset.
It is also important to check the operation of the ABS system on a safe section of the road. Brake sharply at a speed of about 40 km/h. You should feel a characteristic beat in the brake pedal, which indicates that the modulator is working. If the pedal does not pulsate and the indicators do not light up, the system is functioning properly.
Regularly checking the condition of the ABS system wiring and connectors can prevent the occurrence of error 1320 and avoid costly repairs to the control unit.
Preventive measures and maintenance tips
To avoid the recurrence of error 1320, it is necessary to regularly carry out preventive inspections of the ABS system. This is especially true for owners Nissan X-Trail T30who operate the vehicle in difficult conditions or in regions with harsh climates.
Inspect wiring harnesses and connectors every six months for damage and oxidation. Timely cleaning of contacts and application of protective compounds will significantly extend the service life of system components. It is also recommended to monitor the condition of the ring gears on the hubs.
If you are planning a long trip, check the brake system in advance. Do not ignore even a brief flashing of the ABS indicator, as this may be a harbinger of serious damage. Timely diagnosis will save you time and money on repairs.
⚠️ Attention: Ignoring error 1320 can lead to wheel locking during emergency braking on a slippery road, which significantly increases the risk of an accident.
FAQ: Frequently asked questions
Is it possible to drive with error 1320?
Technically, the car will drive, but the ABS and ESP systems will be disabled. The braking distance will increase, and the risk of skidding during sudden braking increases. You can only drive to the nearest service station.
How much does it cost to replace an ABS sensor on a Nissan X-Trail T30?
The cost of the original sensor varies from 3,000 to 5,000 rubles. Alternatives may cost less, but are often less reliable. The replacement job takes about 30-40 minutes.
Will resetting the error via the battery help?
In most cases no. Error 1320 is stored in the non-volatile memory of the ABS unit. A diagnostic scanner is required for a full reset.
Is it possible to replace the sensor yourself?
Yes, the replacement procedure does not require complex equipment. A basic set of tools and a multimeter are enough to check before installation.
Why does the error only appear when it is cold?
This could indicate a wiring problem that expands when heated, or a faulty sensor that loses performance as temperature changes. A thorough check of the circuit is required.