Why the trunk does not open on a Nissan Juke: diagnostics and repair

Owners Nissan Juke The first and second generations often encounter a problem when the trunk stops opening - neither from the button on the key, nor from the internal button in the cabin, or even manually. The situation is unpleasant, especially if you urgently need to get things or load luggage. In most cases, the problem is solved without visiting a service center, but to do this you need to correctly diagnose the cause.

We analyzed owner reviews, service manuals and technical bulletins Nissanto collect all possible causes and solutions. In the article you will find:

• 🔍 7 main reasonswhy trunk Juke does not open (from a banal battery discharge to a breakdown of the actuator).
• 🛠️ Step by step instructions for repairs with photos and diagrams (including emergency opening without damage).
• 💰 Repair cost service vs self-repair - which is more profitable?
• ⚠️ Common mistakesthat aggravate the problem (for example, trying to open the trunk by force).

If your Nissan Juke released before 2015, pay special attention wiring and contacts — the connectors of these models often oxidize. Cars 2016+ are more likely to fail microswitch in the castle. Next, we will analyze each reason in detail.

1. Low battery or power problems

The most obvious but often overlooked reason is dead battery. If the trunk is on Nissan Juke opens electrically (and not purely mechanically), then when the battery is discharged it will not open either from the button or from the key fob. In this case, the central locking may work partially - for example, the doors open, but not the trunk.

How to check:

• 🔋 Look at the dashboard: if when you turn the ignition key, the light bulbs light up dimly or do not light up, the battery is discharged.
• 🔊 Listen: when you press the trunk release button, you should hear the relay click (even if the trunk does not open). Its absence is a sign of nutritional problems.
• 🚗 Try opening the trunk mechanically (more about this in the section on emergency opening).

Solution:

1. Recharge the battery or “light it” from another car. For Juke 10-15 minutes of charging is enough for the electronics to work.
2. If the battery is old (more than 4-5 years), check its capacity with a multimeter. Normal voltage - 12.6–14.4 V.
3. Clean the battery terminals from oxidation (use a soda solution and a wire brush).

⚠️ Attention: If the trunk opens after charging the battery, but the problem returns after a day or two, check generator or leakage current. On Juke The comfort module (BCM) often “glitches”, which discharges the battery overnight.

2. Malfunction of the electric drive (actuator) of the trunk

An electric drive (actuator) is a motor that physically opens and closes the trunk lock. On Nissan Juke it is located inside the tailgate and wears out over time. Signs of actuator failure:

• 🔊 When you press the button you can hear buzzing sound, but the trunk does not open.
• 🔄 The trunk opens every other time - sometimes it works, sometimes it doesn’t.
• 🚪 The trunk door only opens with effort (you have to pull up).

How to diagnose:

1. Remove the tailgate trim (you will need a T20 screwdriver and a plastic puller).
2. Check if it is supplied 12 V to the actuator connector when you press the button (use a multimeter).
3. If there is voltage, but the motor does not work, it has burned out. If there is no voltage, the problem is in the wiring or control unit.

Solution:

• 🔧 Replace the actuator. Original article for Juke (2010–2019): 26560-JM00A (price ~3,500–5,000 RUR). Analogues: Febi or Hella (~2 000–2 500 ₽).
• 🔄 If the actuator works, but the trunk opens tightly, lubricate the mechanism silicone grease (do not use WD-40!).

Juke model	Actuator part number	Cost (original), ₽	Cost (analog), ₽
Juke F15 (2010–2014)	26560-JM00A	4 200–4 800	1 800–2 300
Juke F15 (2015–2019)	26560-JM01A	4 500–5 000	2 000–2 500
Juke JF16 (2019–present)	26560-JM02A	5 000–5 500	2 500–3 000

⚠️ Attention: When replacing the actuator, do not pull the wires - Juke they often fray at the base of the connector. If you notice exposed wires, insulate them. heat shrink tube, not electrical tape.

3. Broken microswitch in the trunk lock

A microswitch (limit switch) is a small button inside the lock that signals the control unit about the position of the trunk. If it breaks, the electronics “think” that the trunk is already open (or closed) and blocks the commands. Signs:

• 🔄 The trunk opens with the key fob, but does not close (or vice versa).
• 🚨 Lights up on the dashboard door open indicator, although the trunk is closed.
• 🔊 When you press the button you can hear multiple clicks relay (the electronics tries to work, but the signal does not pass through).

How to check:

1. Remove the trunk door trim (instructions below).
2. Find the microswitch - it is located next to the lock (small black or white box with two wires).
3. Disconnect the connector and check the circuit with a multimeter in continuity mode. When you press the switch, a beep should sound.

Solution:

• 🔧 Replace the microswitch. Article for Juke: 26530-JM00A (price ~800–1,200 RUR).
• 🔄 If the switch is working, but the contacts are oxidized, clean them alcohol solution.

Disconnect the battery (remove the negative terminal)

Take a photo of the wire location before disconnecting

Test the new switch with a multimeter before installation

After replacement, test the trunk 3-5 times-->

4. Problems with wiring or control module (BCM)

If the actuator and microswitch are working properly, but the trunk still does not open, the problem may lie in wiring or comfort block (BCM). On Nissan Juke The wires in the corrugation between the body and the trunk door often fray, and the contacts in the connectors also oxidize.

How to diagnose:

• 🔍 Inspect the corrugation (rubber cover between the body and the trunk door). If visible broken or exposed wires - problem found.
• 📡 Check the fuse F37 (10A) in the fuse box (located under the steering wheel). He is responsible for the trunk chain.
• 🖥️ Connect a diagnostic scanner (for example, Launch X431) and check for errors in the BCM. Frequent codes: B210E (actuator circuit malfunction), B210F (short circuit).

Solution:

• 🔧 If the wires are frayed - solder them and insulate with heat shrink. Don't use twists!
• 🔄 If the problem is in the BCM, try resetting it (remove the battery terminal for 10-15 minutes).
• 💻 In difficult cases it will be necessary BCM flashing (contact service).

⚠️ Attention: On Juke 2015–2017 was produced BCM factory firmware defect, due to which the unit accidentally blocked signals to open the trunk. If you have just such a machine, update the unit’s software (free under warranty, if applicable).

5. Mechanical breakdowns: lock, hinges, cable

If the electronics are OK, but the trunk still won't open, the problem may be mechanical:

• 🔐 Trunk lock jammed due to corrosion or dirt.
• 🔗 Emergency opening cable torn or came off the fastening.
• 🚪 Trunk hinges sagged and the door was warped.

How to open the trunk in emergency mode:

1. Remove the rear shelf (it is secured with latches - pull it up).
2. Find emergency rope (it is located to the right or left of the lock, depending on the year of manufacture).
3. Pull the cable forward and down — the lock should click.
4. If the cable is broken, try opening the trunk screwdriver through the technological hole in the casing (carefully pry the lock).

Solving mechanical problems:

• 🔧 If the lock is stuck, lubricate it graphite lubricant or LIQUI MOLY LM 47.
• 🔗 If the cable is torn, replace it (part number: 26580-JM00A, price ~1,500 ₽).
• 🚪 If the hinges are sagging, adjust them (you will need a key for 13 mm).

What to do if the emergency opening cable breaks?

If the cable is torn, you can try to open the trunk through the passenger compartment:

1. Remove the rear parcel shelf trim (it is secured with plastic clips).

2. Locate the metal rod of the lock (it usually sticks down).

3. Take a flathead screwdriver or wire, hook the rod and pull down.

4. If that doesn't work, try putting your hand through the spare tire hole (on some models Juke it leads straight to the castle).

6. Problems with the key fob or central locking

If the trunk does not open only with the key fob, but opens with a button in the cabin or mechanically, the problem may be:

• 📶 Low battery in the key fob (even if it opens the doors).
• 📡 Signal receiver malfunctions (central locking antenna).
• 🔑 Sync failed between the key fob and the immobilizer.

How to check:

1. Replace the battery in the key fob (type CR2032).
2. Bring the key fob as close to the car as possible (to the back door) and try to open the trunk.
3. If that doesn't help, try key fob resynchronization:

   1. Вставьте ключ в замок зажигания.
   2. Поверните в положение ON (не заводите).
   3. Нажмите кнопку открытия багажника на брелке 6 раз подряд.
   4. Выключите зажигание и выньте ключ.

If the key fob does not sync, the problem may be central locking antenna (it is located in the rear bumper). Check its circuit with a multimeter - the resistance should be 50–70 Ohm.

7. Software failures and electronic errors

On Nissan Juke with the system NissanConnect (2017+ years) the trunk may not open due to software failures. For example, after updating the firmware or resetting the settings. Signs:

• 🖥️ The trunk does not open in any way, but all other functions work.
• 🔄 After rebooting the electronics (removing the battery terminal), the problem disappears temporarily.
• 📱 In the mobile application NissanConnect a synchronization error is displayed.

Solution:

1. Reset settings NissanConnect via the media menu: Settings → System → Factory reset.
2. Update the firmware of the multimedia system (instructions on the website Nissan).
3. If the problem persists, contact service for BCM flashing.

⚠️ Attention: Do not attempt to update the BCM firmware yourself via OBD ports! On Juke 2018+ this could lead to complete blocking of electronics (re-flashing will be required in the service for 10,000+ ₽).

FAQ: Frequently asked questions about the trunk of Nissan Juke

❓ The trunk opens but does not close. What is the reason?

Most likely the problem is microswitch (he “thinks” that the trunk is already closed) or in wiring. Check the limit switch (Section 3) and the circuit for breaks. The fuse could also be blown. F37.

❓ Is it possible to open the trunk if the battery is dead?

Yes. Remove the rear parcel shelf, find the emergency cable (to the right of the lock) and pull it. If the cable is torn, try opening the lock with a screwdriver through the technological hole.

❓ How much does it cost to repair a trunk at a service center?

The cost depends on the reason:

• Actuator replacement: 3 000–6 000 ₽ (with work).
• Replacing the microswitch: 1 500–2 500 ₽.
• Wiring repair: 2 000–4 000 ₽.
• BCM flashing: 5 000–10 000 ₽.

Do-it-yourself repairs will cost 2–3 times less.

❓ Why does the trunk open by itself?

This is a typical problem Nissan Juke with defective BCM. Most often occurs due to:

• Short circuit in the wiring.
• Firmware failure (especially after updates).
• Moisture getting into the connectors.

Solution: reset the BCM (by removing the battery terminal for 15 minutes) or reflash the unit.

❓ How to lubricate the trunk lock?

Use silicone or graphite grease (not WD-40!). Instructions:

1. Remove the trunk door trim.
2. Apply lubricant to the moving parts of the lock and the cable.
3. Open/close the trunk several times to distribute the lubricant.

Repeat the procedure every 6 months.