Nissan Almera Classic (also known as Nissan Sunny B10 or N16 depending on the market) is a reliable car, but even its ABS system elements fail over time. Rear ABS sensor - one of the most vulnerable parts, especially in Russian roads with salt, dirt and temperature changes. If the indicator on the dashboard comes on ABS, and a code appeared in the diagnostics C1130 (malfunction of the right rear sensor) or C1135 (left), do not rush to go to the service station. In most cases, the problem can be solved on your own.

In this article we will look at:

  • 🔍 How to determinethat it is the rear sensor that is to blame, and not the ABS unit or wiring
  • 🛠️ Step by step instructions on replacing the sensor with photos and nuances for Almera Classic
  • 💰 Cost of spare parts and where to buy original/similar sensors
  • ⚠️ Common mistakesmistakes that can be made during repairs (and how to avoid them)

Symptoms of a faulty rear ABS sensor Nissan Almera Classic

The first and most obvious symptom is ABS light on on the dashboard. However, this indicator may light up for other reasons (for example, due to a broken wiring or a malfunction of the control unit). To pinpoint the problem, pay attention to car behavior:

  • 🚗 ABS activates spontaneously when braking on a flat road (especially at low speeds)
  • 🔄 Rear wheels are locked during hard braking, although the system should prevent this
  • 📊 Error code in diagnostics: C1130 (right sensor), C1135 (left sensor) or C1140 (open circuit)
  • 🔊 Creaking or strange sounds from the rear wheels (may indicate damage to the hub ring gear)

If the ABS light comes on only when moving (for example, after 40 km/h), the problem is most likely in dirty sensor or wheel bearing play. If the indicator is constantly on, it’s the fault broken wire or the sensor itself.

📊 How often do you check the ABS system on your car?
  • Only when the light comes on
  • Once a year before winter
  • Every 10,000 km
  • Never checked

Rear ABS sensor diagnostics: where to start?

Before changing the sensor, check its functionality. To do this, you don’t have to go for diagnostics—a multimeter and basic electrical skills are enough.

Check procedure:

  1. Disable negative battery terminal (required!).
  2. Remove the rear wheel and locate the ABS sensor (located next to the hub, secured with one bolt).
  3. Disconnect the sensor connector and check resistance between contacts:
    • 🔧 Normal resistance: 800–1400 Ohm (for Almera Classic original sensors usually show ~1000 ohms).
    • 🚫 If resistance 0 ohm - short circuit if ∞ (infinity) - break.
  • Ring the wires from the connector to the ABS unit (there should be resistance ~0 Ohm, without breaks).

    • If the sensor shows normal resistance, but the error remains - the problem may be in the hub ring gear (chips, contamination) or in the ABS block itself. In this case try clean the sensor and crown (more on this below).

    What to do if you don’t have a multimeter?

    If you don’t have a multimeter at hand, you can check the sensor by eye:

    1. Inspect the wiring for chafing or oxidation.

    2. Rock the sensor by hand - if there is play, it is faulty.

    3. Check for metal shavings or dirt on the sensor tip (this is a common cause of false alarms).

    Cleaning the rear ABS sensor: when it helps and when it’s useless

    In 30% of cases the problem is solved banal cleaning. ABS sensor on Nissan Almera Classic located close to the hub, and dirt, metal dust and salt constantly stick to it. This leads to false signals or complete loss of communication with the control unit.

    How to clean the sensor correctly:

    • 🧹 Remove the sensor (unscrew the bolt by 10, carefully pull it out of the bracket).
    • 🧴 Clean the tip from dirt with WD-40 or isopropyl alcohol (do not use acetone!).
    • 🔍 Check the hub ring gear — if it is chipped or severely corroded, the sensor will not operate correctly.
    • 🧲 Make sure the gap between the sensor and the ring does not exceed 1–1.5 mm (with a larger gap the signal will be weak).

    Important: if after cleaning the error remains, but the sensor resistance is normal, the problem is in the ABS unit or wiring. In this case, cleaning is useless.

    💡

    After cleaning the sensor, lubricate its tip with a thin layer of lithium grease (For example, LIQUI MOLY LM47). This will protect against corrosion and extend service life.

    Replacing the rear ABS sensor with Nissan Almera Classic: step by step instructions

    If the sensor is faulty, it must be replaced. For Almera Classic (B10/N16) fit original sensors Nissan 40520-4M000 (right) and 40521-4M000 (left), as well as analogues from Febi, TRW or Bosch.

    Tools you will need:

    • 🔧 10 mm socket (for sensor mounting bolt)
    • 🔧 Socket wrench or ratchet handle
    • 🔧 Flat blade screwdriver (for removing chips)
    • 🔧 WD-40 (if the bolt is sour)

    Step by step replacement:

    1. Jack up the car and remove the rear wheel.
    2. Disconnect the sensor chip (press the latch and pull up).
    3. Unscrew the sensor mounting bolt (force may be required if it is soured).
    4. Carefully pull the sensor out of the bracket. Don't pull the wire!
    5. Install the new sensor in reverse order. Make sure it's seated all the way (a click should be heard).
    6. Connect the chip and check whether the ABS light goes out (you may need to reset the error with a scanner or by disconnecting the battery).

    I bought a new sensor (original or proven analogue) |

    Disconnected the negative terminal of the battery|

    Prepared the tool (10mm socket, WD-40, screwdriver)|

    I checked the resistance of the old sensor (for diagnostics)|

    Cleaned the installation site from dirt -->

    If the ABS light does not go off after replacing the sensor, check:

    • 🔌 The connector is connected correctly (sometimes the chip does not snap in completely).
    • 🔧 Tighten the mounting bolt (if the sensor is loose, the signal will be unstable).
    • 📊 The presence of other errors in the system (for example, a malfunction of the front sensor or ABS unit).

    Cost of spare parts and where to buy

    Rear ABS sensor price for Nissan Almera Classic Depends on the manufacturer and place of purchase. The table below shows current prices for 2026:

    Manufacturer Article Price (RUB) Where to buy
    Original (Nissan) 40520-4M000 (right)
    40521-4M000 (left)    		 2 500–3 200 Official dealers, Exist.ru, Autodoc
    Febi (Germany) 22340 1 200–1 600 Exist.ru, Emex, auto parts stores
    TRW (USA) GSA12345 1 500–1 900 Autodoc, Kolesa.ru
    Bosch (Germany) 0 265 004 725 1 800–2 200 Any auto shops, Ozon, Wildberries
    Analogs (China) No brand 400–800 AliExpress, local markets

    ⚠️ Attention: Cheap Chinese sensors often fail after 1–2 months. If you want reliability, take it Febi or TRW. Original Nissan expensive, but lasts the longest.

    Where to buy:

    • 🛒 Official dealers - guarantee of originality, but high price.
    • 🌍 Online stores (Exist.ru, Autodoc) - a large selection, often there are discounts.
    • 🏪 Local auto stores — you can look at the spare part before purchasing, but there is a risk of running into a fake.

    Common mistakes when replacing an ABS sensor and how to avoid them

    Even experienced car owners sometimes make mistakes that lead to ABS light comes on again or damage to the new part. Here are the most common:

    • 🔧 Incorrect bolt tightening — if you overtighten, the sensor will become deformed; if you don't tighten it enough, it will dangle. Tightening torque: 8–10 Nm.
    • 🔌 Chip damage when disconnected. Do not pull the wires - press the latch and carefully remove the connector.
    • 🧹 Installing the sensor in a dirty bracket. Clean the seat from rust and dirt, otherwise the new sensor will quickly fail.
    • 🔄 Forgot to reset error after replacement. The ABS light may come on even if the sensor is working properly. Reset the error with a scanner or by disconnecting the battery for 10 minutes.
    • 🚗 The hub ring gear was not checked. If it is chipped, the new sensor will give an error.

    💡

    If the ABS light is still on after replacing the sensor, check wiring from the sensor to the ABS unit. Often the problem lies in a frayed or oxidized wire under the threshold of the car.

    ⚠️ Attention: if when replacing the sensor you notice that Wiring is fragile or melted, don’t risk it - replace it completely. A short circuit in the ABS circuit can damage the control unit, and replacing it will cost 15–20 thousand rubles.

    Frequently asked questions about the rear ABS sensor on Nissan Almera Classic

    Is it possible to drive with a faulty ABS sensor?

    Yes, you can, but braking distance will increase, especially on wet or icy roads. ABS will turn off and the wheels will lock during heavy braking. May also not work brake force distribution (EBD) system, which is dangerous during emergency braking.

    How to reset an ABS error without a scanner?

    Disable negative battery terminal for 10–15 minutes. If the error was temporary (for example, due to dirt on the sensor), the light will go out. If the error remains, the problem is not resolved.

    Why does the light still come on after replacing the ABS sensor?

    Possible reasons:

    • Defective ABS unit (diagnostics needed).
    • Damaged wiring between the sensor and the block.
    • The error has not been reset (you need to connect the scanner or disconnect the battery).
    • New sensor defective (check resistance).

    Which ABS sensors are suitable for Almera Classic besides the original ones?

    Proven analogues:

    • Febi 22340 (Germany) - the best price/quality ratio.
    • TRW GSA12345 (USA) - reliable, but more expensive Febi.
    • Bosch 0 265 004 725 - high quality, but there are fakes.
    • Sasic 2301001 - a budget option (about 800 rubles), but the resource is less.

    Can the ABS sensor be repaired?

    No, ABS sensor - non-repairable part. If it fails, it can only be replaced. Exception - cleaning from dirtif the problem was contamination.