Windshield washer on Nissan Almera G15 - a seemingly simple system, but its failure can seriously impair visibility and driving safety. If the liquid stops flowing to the glass, and the nozzles are silent when the lever is pressed, the problem requires an immediate solution. In this article we will analyze all possible reasons - from a banal lack of fluid to a pump breakdown or clogged pipes, and also give step-by-step repair instructions taking into account the design features Almera G15.

It is important to understand that the washer system here is integrated with the body electronics control unit (BCM), so sometimes the problem lies not in the mechanics, but in the electrics. We will look at these nuances, including checking fuses, relays and wiring. And for those who prefer visual instructions, the article has table with error codes And list of original spare parts with articles.

1. Primary diagnosis: what to check first

Before disassembling half the machine, perform basic checks. Start with the obvious:

  • 🔹 Washer fluid level. Open the hood and check the reservoir - it is located to the right of the battery. On Almera G15 The tank is translucent, but if it is heavily soiled, the level may not be visible. Top up only special liquid (not water!), otherwise the system will freeze in winter.
  • 🔹 Control lever performance. Press the lever under the steering wheel to the washer position (toward you) - you should hear the sound of the pump running. If there is no sound, the problem is electrical or pump.
  • 🔹 Injector condition. Visually inspect the nozzles on the hood. On Almera G15 they often become clogged with dirt or covered with ice in winter. Try cleaning them with a needle (carefully!).

If everything is in order with the fluid and nozzles, but the washer does not work, proceed to checking the electrical part. On Almera G15 The washer pump is controlled via relay R17 (in the fuse box under the steering wheel) and fuse F32 (10A). Their location and numbers may vary depending on the year of manufacture (2013–2018), so please check with electrical circuit your modification.

📊 How did you start diagnosing the problem?
  • Checking the fluid level
  • Injector inspection
  • Checking the fuses
  • Listening to the pump
  • Another option

2. Electrical faults: fuses, relays and wiring

Electrical circuit of the washer Nissan Almera G15 includes several key elements:

  1. Fuse F32 (10A) - responsible for the pump circuit. If it burns out, the washer stops working completely.
  2. Relay R17 — controls the power supply to the pump. If the relay fails, the pump will not turn on, even if the fuse is intact.
  3. Wiring and connectors - oxidation or broken contacts can interrupt the circuit. The pump connectors (under the tank) and the control unit are especially vulnerable.

To check the fuse and relay:

  1. Open the fuse box under the steering wheel (the cover labeled FUSE).
  2. Remove F32 and inspect the thread - if it is burned out, replace the fuse with a similar one (10A!).
  3. Swap places R17 with a known working relay (for example, R15 from the fan). If the washer works, replace the relay.

Remove and inspect fuse F32 (10A)

Check relay R17 by replacement

Inspect the pump connector for oxidation

Test the circuit with a multimeter (12V power supply to the pump)

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Attention! If a fuse blows again after replacement, the system short circuit. Do not ignore this - the control unit or wiring may burn out!

3. Washer pump malfunctions: how to check and replace

Washer pump on Nissan Almera G15 - weak point. It is located at the bottom of the tank and often fails due to:

  • 🔧 Brush wear — the pump motor stops rotating.
  • 🔧 Contact corrosion - Oxidation leads to loss of nutrition.
  • 🔧 Mechanical jamming — dirt or ice is blocking the impeller.

To check the pump:

  1. Remove the washer reservoir (unscrew the 2 mounting bolts and disconnect the hoses).
  2. Disconnect the pump connector and apply 12V directly from the battery (plus to the terminal A, minus k B). If the pump does not hum, it is faulty.
  3. If the pump works with a direct connection, but does not turn on from the lever, there is a problem in the control circuit (wiring, relay, BCM).

To replace the pump with Almera G15 original part will fit 28521-JM00A or analogues from Valeo (article 616109). The average price is 1,200–1,800 rubles. Installation takes 15–20 minutes.

How to remove the washer reservoir without draining the fluid?

Pinch the fluid supply hoses to the injectors with pliers so that the fluid does not leak out when removing the reservoir. After installing the new pump, release the clamps and check the connections for tightness.

4. Clogged system: tubes, nozzles and filters

If the pump works (you can hear a sound), but the liquid does not flow onto the glass, the problem is clog. On Nissan Almera G15 Most often clogged:

  • 🚿 Injectors — small holes become clogged with dirt or salts from low-quality liquid.
  • 🚿 Supply tubes — Kinks or deposits inside the hoses are blocking the flow.
  • 🚿 Filter in the tank — the mesh at the pump inlet may become clogged with rust or debris.

To clean the system:

  1. Injectors: remove them from the hood (turn them counterclockwise) and wash them in a citric acid solution. Blow with compressed air.
  2. Tubes: Disconnect the hoses from the tank and injectors, rinse them with water under pressure. If the blockage is severe, use Ø0.5 mm wire.
  3. Filter: Remove the pump from the reservoir and clean the mesh with a toothpick.

Attention! Do not use for rinsing aggressive solvents (for example, acetone) - they will damage the plastic parts of the system!

System element Signs of a blockage Cleaning method
Injectors Liquid does not spray or splashes to the side Washing in citric acid, blowing with air
Tubes Liquid does not flow to the injectors, the pump is humming Pressure water washing, mechanical cleaning
Tank filter The pump works, but does not pump fluid Cleaning the mesh with a toothpick or replacing the tank
Hoses under the hood Fluid leaks under the car Replacing damaged areas, sealing joints

5. Problems with the control unit (BCM) and sensors

If all mechanical and electrical components are in good working order, but the washer does not work, the culprit is body electronics control unit (BCM). On Nissan Almera G15 it is located behind the dashboard and is responsible for controlling the pump based on a signal from the lever.

Symptoms of a problem BCM:

  • 🔌 The washer does not work, but the pump is working and is receiving power.
  • 🔌 Other functions (for example, wipers or backlight) are also unstable.
  • 🔌 Errors related to body electronics (for example, B2555 — washer circuit malfunction).

For diagnostics BCM:

  1. Connect a diagnostic scanner (for example, Launch X431) and check for errors on the body network (CAN).
  2. If there are no errors, check the signal from the washer lever at the inlet BCM (contact 24 connector B). Must be 12V when pressed.
  3. When a fault is confirmed BCM Re-flashing or replacement of the unit is required (original article number - 284B0-JM00B).

Attention! DIY repair BCM without experience it is fraught complete failure of body electronics. It is better to contact an official dealer or chip tuning specialist.

6. Seasonal problems: frozen liquid and condensation

In winter, the washer is on Nissan Almera G15 often fails due to:

  • ❄️ Freezing liquid — if there is water or diluted washer fluid in the tank, it turns into ice and blocks the pump.
  • ❄️ Injector icing — the moisture in the nozzles freezes, blocking the outlet of the liquid.
  • ❄️ Condensate in tubes — with sudden temperature changes, ice jams form.

To defrost the system:

  1. Drive the car into a warm garage for 2-3 hours.
  2. Add to tank defroster (For example, Hi-Gear HG5647) or alcohol (100–150 ml per 1 liter of liquid).
  3. If the pump does not spin due to ice, carefully warm the reservoir with a hairdryer (do not overheat the plastic!).

Prevention:

  • 🛡️ Use winter washer fluid with a freezing temperature no higher -25°C.
  • 🛡️ Flush the system before winter clean waterto remove any remaining summer liquid.
  • 🛡️ Keep the tank filled at least 50% - the less air, the less condensation.
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If the washer freezes on the road, and there is no warm garage, pour warm (not hot!) water with salt into the tank (1 tbsp per 0.5 l). This will temporarily dissolve the ice and allow you to get to the service station.

7. When to contact the service: difficult cases

Not all washer malfunctions can be fixed on your own. Contact the service if:

  • 🔧 After replacing the pump and checking the electrical system, the system does not work.
  • 🔧 Diagnostics shows errors BCM (For example, U1000 - loss of connection CAN-tire).
  • 🔧 The washer reservoir needs to be replaced (cracks, leaks) or tubes (reservoir part number - 28520-JM00A).
  • 🔧 Need flashing BCM or replacing the block.

Service repair cost:

Type of work Cost (₽) Time (hour)
Electrical diagnostics 1 000–1 500 0.5–1
Replacing the washer pump 800–1,200 (without spare part) 0.5
Cleaning injectors with dismantling 500–800 0.3
BCM flashing 3 000–5 000 1–2

Attention! When replacing the tank or pipes with Almera G15 use only original parts or certified analogues. Cheap Chinese hoses often crack after 1–2 years.

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If the washer stops working after washing the engine or rain, in 90% of cases the problem is oxidation of the pump or relay contacts. Dry and clean connectors before replacing parts.

FAQ: Frequently asked questions about washer Nissan Almera G15

❓ Why does the washer work, but the liquid splashes only on one side of the glass?

This is a typical problem clogged or misaligned injectors. On Almera G15 Sprayers often get knocked down after pressure washing. Solution:

  1. Remove the injectors and wash them.
  2. Adjust the direction of the jet using a needle (carefully bend the nozzle).
  3. If it doesn’t help, replace the injectors (part number 28650-JM00A).
❓ Is it possible to use water instead of washer fluid in the summer?

Technically possible, but not recommended. Water:

  • 💧 Evaporates faster, leaving streaks on the glass.
  • 💧 Promotes the formation of plaque in the system.
  • 💧 Does not remove grease and insects as effectively as specialized liquid.

If you do use water, add it a little detergent (1 cap per 1 l).

❓ How to check if there is power to the pump?

You will need multimeter or control lamp. Actions:

  1. Disconnect the pump connector.
  2. Switch the multimeter to voltage measurement mode (20V DC).
  3. Connect the probes to the connector contacts (polarity is not important).
  4. Have an assistant press the washer lever. It should appear on the screen 12V.

If there is no voltage, the problem is in the circuit (fuse, relay, wiring).

❓ Why does the washer work, but the liquid flows out under the car?

This is a sign depressurization of the system. Reasons:

  • 🔧 Crack in the tank (often near the fastenings).
  • 🔧 Damage to hoses (frayed or burst).
  • 🔧 Loose connection of tubes with nozzles or pump.

Solution: inspect the system for leaks, replace damaged elements. Can be used for temporary repairs sealant for plastic (For example, Loctite 406).

❓ What kind of liquid to pour into the washer Almera G15?

Manufacturer's recommendations:

  • 🔹 Summer: any liquid marked "for plastic containers" (for example, Liqui Moly Scheiben-Reiniger Konzentrat).
  • 🔹 Winter: liquid with a freezing point no higher -25°C (for northern regions - -40°C).
  • 🔹 Concentrate: dilute strictly according to the instructions (usually 1:3 or 1:5).

Prohibited use:

  • 🚫 Dishwashing detergents (form foam).
  • 🚫 Solvents or gasoline (destroy plastic and rubber).