Why the rear wiper doesn't work on a Nissan Pathfinder: 7 reasons and how to fix it yourself

Rear wiper on Nissan Pathfinder - it would seem a trifle, but its malfunction can seriously impair visibility in rain or snow, especially on models R51 (2005–2012) And R52 (2013–2021). If the wiper suddenly stops working, do not rush to go to the service center: in 80% of cases, the problem can be fixed with your own hands in 30–60 minutes. The main thing is to correctly diagnose the cause, because it could be anything: from a blown fuse to a worn out motor or broken wiring.

In this article we will analyze all possible reasonswhy the rear wiper doesn't work Pathfinder, - from trivial (fuse blown) to complex (malfunction of body control unit BCM). We will give step-by-step instructions with photos and diagrams, and also tell you how to avoid common mistakes during repairs. If you are not confident in your abilities, at the end of the article there is checklist for diagnostics, which will help you make a decision: fix it yourself or go to an electrician.

1. Checking the rear wiper fuse and relay

The first thing to do is check fuse And relay. On Nissan Pathfinder R51/R52 The fuse controls the rear wiper F37 (10A) in the mounting block under the steering wheel. On models from 2013 (R52) there may be a fuse F26 (15A) — check the diagram in the manual.

How to check:

• 🔧 Remove the fuse box cover (located to the left of the steering wheel, under the decorative panel).
• 🔍 Find fuse F37/F26 — its location is indicated on the back of the cover.
• 💡 Visually inspect: if the thread is burnt out, replace it with a new fuse same denomination.
• 🔄 Check relay (usually K12 or K15): swap it with a known working one (for example, with a heated seat relay).

If after replacement the fuse burns out again - in the circuit short circuit. This could be due to damaged wiring or a faulty wiper motor. In this case you need test the circuit with a multimeter (more on this below).

⚠️ Attention: Never install a fuse of a higher rating (for example, 15A instead of 10A)! This may lead to a fire in the wiring or failure of the unit. BCM.

2. Diagnostics of the rear wiper motor

If the fuse and relay are good, but the wiper does not move, the problem may be electric motor. On Pathfinder it is located under the plastic trim of the rear door. To get to it:

1. Remove the plastic door trim (snap off the clips or unscrew the screws).
2. Find the motor - it is attached to the wiper mechanism.
3. Disconnect the power connector and check the voltage at the terminals with the wiper on (there should be 12V).

If there is voltage, but the motor does not work:

• 🔧 Check the brushes - they could wear out.
• 🔄 Lubricate the shaft — sometimes the motor jams due to corrosion.
• 🔨 Replace the motor - if it burns out (the cost of a new one is ~2500–4000 rubles).

Symptom	Probable Cause	Solution
The wiper does not move, but the sound of the motor is heard	Reducer gear wear or rod breakage	Disassemble the mechanism, replace the gear or rod
The motor does not make sounds, there is voltage at the terminals	The winding is burnt out or the brushes are worn out	Replacing the motor
The wiper works jerkily	Contact oxidation or brush wear	Cleaning contacts or replacing brushes

How to remove the rear wiper motor on Pathfinder R51?

1. Remove the plastic rear door trim (clips or 4 screws).
2. Unscrew the 3 motor mounting bolts (10mm head).
3. Disconnect the power connector and pull out the motor along with the rod.
4. When replacing, transfer the rod from the old motor to the new one (if it is in good condition).

3. Checking wiring and connectors

A common problem on Pathfinder — broken or oxidized wires, especially in places of inflection (at the door, under the trim). Check:

• 🔌 Connector on the motor - often oxidizes or comes off.
• 🔗 Wiring from the block BCM to the motor — test with a multimeter for a break.
• 🚪 Wires in the corrugation between the body and the door - they can fray.

How to ring a chain:

1. Put the multimeter in resistance test mode (200 Ohm).
2. Disconnect the motor connector and check the resistance between the terminals - there should be 1–5 Ohm.
3. Check the circuit from the fuse to the motor (one probe for the fuse, the second for the motor terminal).

⚠️ Attention: If, when checking resistance, the multimeter shows 0 ohm (short circuit), do not connect power - this may burn the unit BCM!

4. Problems with the body control module (BCM)

If the fuse, motor and wiring are good, but the wiper does not work, the problem may be body control unit (BCM). On Pathfinder R51/R52 it is located behind the center console. Symptoms of a problem BCM:

• 🔴 Several electrical appliances do not work at the same time (for example, wipers + heated windows).
• 🔄 The wiper works spontaneously.
• 🚨 An error light appears on the device BCM (code B2555 or similar).

What to do:

1. Clear errors with the scanner (for example, ELM327).
2. Check the output voltage BCM (contact 12V should be supplied to the wiper relay).
3. If the unit is faulty, it is needed reflash or replace (cost of a new one ~15,000–25,000 rubles).

On Pathfinder R52 (2013+) BCM often crashes due to poor ground contact. Check the ground connection to the body (usually under the center console).

5. Mechanical faults: rods, gears, levers

If the motor hums but the wiper does not move, the problem is mechanical part:

• 🔧 Traction broke - a plastic or metal lever connecting the motor to the wiper.
• ⚙️ Reducer gear worn out — the motor rotates, but does not transmit force.
• 🔗 The wiper shaft is jammed - due to corrosion or dirt.

How to fix:

1. Remove the motor and inspect the rod for cracks.
2. Check the gearbox - if the teeth are worn out, replace the motor.
3. Lubricate the wiper shaft silicone grease (do not use grease - it attracts dirt!).

On Pathfinder R51 breaks often plastic rod - it can be replaced with a metal one from Nissan X-Trail T31 (article 80510-4M000).

6. Problems with the switch and steering column switch

If the rear wiper does not turn on in any mode, check:

• 🔘 Steering column switch — the contacts could have oxidized.
• 🔄 Rear wiper button (on some versions it is separate).
• 🔌 Switch connector - often comes off or oxidizes.

How to diagnose:

1. Remove the plastic trim under the steering wheel (unscrew the 2 screws from the bottom).
2. Disconnect the steering column switch connector and check the contacts for oxidation.
3. Ring the circuit from the switch to the block BCM.

If the switch is faulty, it can be replaced (part number for Pathfinder R51 — 25540-4M000, cost ~3000–5000 rub.). On R52 often helps cleaning contacts alcohol.

7. Additional reasons: washer, sensors, firmware

Less common, but other reasons also occur:

• 💦 Rear window washer clogged - if the wiper does not work only when you press the washer, check the pipes and nozzle.
• 📡 Firmware failure BCM - on Pathfinder R52 After 2016, sometimes resetting the settings helps.
• 🚗 Rain sensor (if installed) - can block the wiper operation.

If you suspect a firmware failure, try:

1. Disconnect battery for 10 minutes (reset BCM).
2. Check errors with a scanner (codes B2555, B2557 indicate problems with BCM).
3. Update the firmware from an official dealer (it is not recommended to do it yourself!).

On Pathfinder R51 With rear parking sensors, sometimes the wiper is blocked due to a failure in the system Around View Monitor. In this case, restarting the multimedia system helps (hold the Power 10 seconds).

FAQ: Frequently asked questions about the Nissan Pathfinder rear wiper

❓ Why does the rear wiper only work when the washer is on?

This is a sign of a problem steering column switch or a break in the main power supply circuit. Check the switch contacts and run the wire from it to the block BCM.

❓ Is it possible to drive without a rear wiper?

Technically yes, but this unsafe. In rain or snow, visibility through the rear window is reduced by 40–60%, which increases the risk of an accident. If the wiper is broken, temporarily use washer or clean the glass by hand.

❓ How much does it cost to replace a rear wiper motor on a Pathfinder?

The cost depends on the model:

• Pathfinder R51 (2005–2012): motor ~2500–3500 rub., work ~1000–1500 rub.
• Pathfinder R52 (2013–2021): motor ~3500–4500 rub., labor ~1500–2000 rub.

If you change it yourself, you can save on work. The main thing is not to damage the rod during dismantling!

❓ Why does the wiper work in the opposite direction after replacing the motor?

This means that you connector connected incorrectly or reversed polarity. Disconnect the connector and connect it in a mirror way. If the problem remains, the motor is faulty (the winding may have burned out).

❓ Where can I find a rear wiper wiring diagram for Pathfinder R51?

The diagram can be downloaded:

• B official Nissan manual (paid).
• On forums (for example, Pathfinder Russia).
• In VKontakte repair groups Nissan Pathfinder.

Main wires:

• Red/yellow - food +12V (from the fuse).
• Black — mass.
• Green/white - control from BCM.