Nissan Qashqai J10 first generation (2007–2013) with gasoline engine 2.0 MR20DE — one of the most popular crossovers on the Russian market. However, even such a reliable car eventually develops problems with electrical equipment, and blown fuses are often to blame. Unlike newer models, J10 has two main fuse blocks - in the cabin and under the hood, and their diagrams differ depending on the year of manufacture and configuration.
In this article you will find full decoding of fuses and relays for Qashqai J10 2.0, including diagrams indicating the ratings and purpose of each element. We will also take a detailed look at how to correctly diagnose and replace fuses to avoid common mistakes that can lead to short circuits or failure of expensive components. Particular attention is paid fuse F37 (15A) in the passenger compartment, responsible for the operation of the engine ECU - its burnout is often disguised as a sensor malfunction.
Where are the fuse boxes located in Nissan Qashqai J10 2.0
B Qashqai J10 fuses and relays are distributed over two main blocks:
- 🚗 Salon block — located to the left of the steering column, behind the plastic cover. To gain access, you need to turn the three latches 90° counterclockwise and remove the cover.
- 🔧 Engine compartment block — located next to the battery, under the black plastic cover. It is attached to two latches that need to be released at the same time.
It is important to consider that in vehicles with automatic transmission (variator JF011E) there is an additional relay in the engine compartment K10, responsible for controlling the variator solenoids. In cars with a manual transmission, this relay is not present, and its place is taken by a plug.
Also on some versions Qashqai J10 (for example, for the European market) there may be a third, auxiliary fuse box located behind the glove compartment. It is responsible for additional equipment such as heated seats or the multimedia system. However, this unit is usually not included in basic configurations for Russia.
- In the salon block
- In the engine compartment
- There were no problems
- I don't know where to look
- Other
Diagram and assignment of fuses in the cabin block
Cabin fuse box Nissan Qashqai J10 2.0 contains 46 fuses And 12 relays. Below is a table with a breakdown of the most important elements that most often fail:
| Designation | Rating (A) | Purpose | Symptoms of a problem |
|---|---|---|---|
F3 |
10 | Airbag control unit (SRS) | The lamp is on Airbag on the dashboard, error B1017 |
F10 |
10 | Audio system, navigation, Bluetooth-module | The radio does not work, there is no sound, the phone does not connect |
F26 |
15 | Electric windows (driver's door) | The driver's side windows do not work, the relay is heard clicking, but there is no movement |
F37 |
15 | Electronic engine control unit (ECU) | The engine does not start, it is on fire Check Engine, errors P0603, P0605 |
F42 |
20 | Heated rear window | Heating does not work, there is no voltage at the glass contacts |
Particular attention should be paid to the fuse F37. Its burnout often occurs due to short circuit in the wiring harness, going to the throttle position sensor (TPS). If after replacement the fuse blows again, you need to check the circuit with a multimeter in continuity mode, since the short circuit may be located not only in the sensor itself, but also in the connector E30 to the ECU.
⚠️ Attention: When replacing a fuse F37 Never use bugs or overrated fuses. This may lead to failure ECU, the cost of which exceeds 30,000 rubles.
Engine compartment fuse box: what you need to know
Engine compartment block Nissan Qashqai J10 2.0 contains 30 fuses And 8 relays. Here are the elements responsible for the main power circuits of the car: starter, generator, cooling fans, etc. Below are the most critical fuses:
- ⚡
F1(100A) — Main fuse, protects the circuit from the battery to the fuse box. When it burns out, the car is completely de-energized. - 🔥
F10(30A) — Cooling fans. If this fuse blows, the engine will overheat, especially in traffic. - 🔋
F15(10A) — Generator. If it malfunctions, the battery does not charge, which leads to battery discharge. - 🚘
F20(15A) — Fuel pump. If the fuse is blown, the engine will not start because gasoline will not be supplied to the ramp.
One of the common problems in the engine compartment is contact oxidation, especially in fuses F1 And F10. This is due to moisture entering through a leaky unit cover. If you notice that fuses often blow for no apparent reason, it is recommended:
- Clean the fuse block contacts with alcohol or a special cleaner
- Apply a thin layer of dielectric grease to the fuse contacts
- Check the tightness of the unit cover, if necessary, replace the seal
- Install additional protection against moisture (for example, a silicone case) -->
There is also a relay located in the engine compartment K5responsible for the work cooling fans. If the relay fails, the fans stop turning on even when the critical temperature is reached. This malfunction can be diagnosed by applying directly 12V to the fan contacts - if it starts working, the problem is in the relay or its control circuit.
How to properly diagnose and replace fuses
Before replacing the fuse, you must accurately determine the cause of its burnout. Pointless replacement without diagnostics can lead to repeated failure or even fire. The algorithm of actions is as follows:
- Visual inspection — remove the fuse and check it for a break. In some cases, the break is visible to the naked eye, but it is better to use a multimeter.
- Chain continuity - if the fuse is blown, turn off all consumers connected to this circuit and check for a short circuit.
- Load check - if the circuit is working properly, connect the consumers one at a time to identify the one that creates excessive load.
To check the fuse with a multimeter:
- Set the continuity or resistance measurement mode.
- Touch the probes to the fuse contacts. If the resistance approaches zero, the fuse is good. If on the screen
OL(break) - replacement required.
When replacing a fuse, observe the following rules:
- 🔧 Use only fuses same denomination, as the original ones. Installing a fuse with a larger rating may result in a fire in the wiring.
- 📋 If the fuse blows again, don't replace it until the cause is eliminated. Most often, the culprit is a short circuit or a faulty consumer (for example, a window lift motor).
- 🔍 After replacement, check the operation of the chain. If the fuse is blown again, have an auto electrician diagnose it.
If you don't have a multimeter at hand, you can check the fuse for a spark. To do this, turn on the faulty circuit (for example, headlights) and briefly close the fuse contacts with a screwdriver. If a spark appears, the circuit is good and the problem is in the fuse. However, this method is dangerous - use it only as a last resort!
Typical mistakes when working with fuses
Many owners Nissan Qashqai J10 make mistakes that lead to serious damage. Here are the most common ones:
- 🔥 Using "bugs" - instead of a fuse, insert wire or foil. This may lead to fire, since the circuit remains unprotected.
- 🔧 Replacing a fuse without diagnostics - If the fuse blows repeatedly, this indicates a short circuit. Ignoring the problem can lead to damage ECU or other expensive components.
- 📉 Using overrated fuses - for example, instead of
15Aput20A. This leads to overheating of the wiring. - 💡 Incorrect fuse installation - if the fuse is not inserted completely, this can lead to poor contact and overheating.
One of the most dangerous mistakes is ignoring signs of malfunction. For example, if the fuse F37 (responsible for ECU) burns out, many owners simply replace it and continue using it. However, this may indicate problems with wiring or sensors, which will eventually lead to failure of the control unit. In such cases, it is recommended to carry out a full diagnosis using a scanner (for example, Launch X431 or ELM327).
⚠️ Attention: If after replacing the fuseF10(audio system) the radio stops turning on, check the fuseF31in the salon block. He is responsible for nutrition CAN buses, and its burnout can block the operation of the multimedia system.
Frequent malfunctions and their connection with fuses
Many problems in Nissan Qashqai J10 2.0 are directly related to fuses. Below are the main symptoms and corresponding fuses that you should check first:
| Symptom | Possible fuse | Additional diagnostics |
|---|---|---|
| Power windows don't work | F26 (15A, cabin unit) |
Check relay K7 and window lift motors |
| Heated rear window does not turn on | F42 (20A, cabin unit) |
Check the integrity of the heating filaments and relays K12 |
| Engine does not start, no spark | F37 (15A, cabin unit) or F20 (15A, engine compartment) |
Check the power circuit ECU and fuel pump |
| Low beam headlights do not work | F18 (10A, cabin unit) or F11 (10A, engine compartment) |
Check lamps, relays K3 and headlight connectors |
| Air conditioner doesn't work | F30 (10A, cabin unit) |
Check relay K9 and freon pressure |
If you encounter unstable engine operation (revolutions fluctuate, traction disappears), first of all check the fuse F37. Its burnout is often accompanied by errors P0335 (crankshaft position sensor) or P0100 (mass air flow sensor). However, before replacing the fuse, be sure to check:
- 🔌 Integrity of the wiring harness going to ECU (especially the connector
E30). - 📊 There is a short circuit in the throttle sensor circuit (TPS).
- 🔋 Battery voltage - if it is lower
11.8V, ECU may be unstable.
What to do if fuse F37 blows again?
If after replacing the fuse F37 burns out again, this indicates a short circuit in the circuit ECU. Most often the problem lies in:
1. **Throttle position sensor** (TPS) - its short circuit leads to an overload of the circuit.
2. **Wiring from ECU to sensors** - frayed or melted wires.
3. **In the control unit itself** - in rare cases, inside ECU a short circuit may occur.
For diagnostics, disconnect all sensors from ECU and check the circuit with a multimeter. If the short circuit disappears, connect the sensors one at a time to identify the faulty one.
Tips for the prevention and care of fuses
To keep the fuses in Nissan Qashqai J10 2.0 lasted longer, follow these recommendations:
- 🔧 Check the status of your contacts regularly in fuse blocks. Oxidation or contamination can lead to poor contact and overheating.
- 🚿 Avoid moisture into the engine compartment. If the unit cover is damaged, replace it or install additional protection.
- ⚡ Do not overload the electrical network. Connecting powerful consumers (for example, additional headlights or a subwoofer) without installing separate fuses can lead to burnout of standard elements.
- 📋 Keep a log of fuse replacements. If one fuse blows more often than others, this is a signal that diagnostics are needed.
Also recommended carry out a preventive examination once a year fuse blocks. To do this:
- Remove the block covers and clean the contacts from dust and oxidation.
- Check that fuses and relays are securely attached.
- Make sure there are no foreign objects (such as metal shavings) in the blocks that could cause a short circuit.
If you often drive your car in high humidity conditions (for example, in rainy weather or winter), it makes sense to treat the fuse block contacts dielectric grease. This will prevent oxidation and corrosion, which are one of the main causes of blown fuses.
If a fuse blows for no apparent reason, don't stop at replacing it. Carry out a complete diagnostic of the circuit to avoid repeated breakdowns and costly repairs.
FAQ: Frequently asked questions about fuses Nissan Qashqai J10 2.0
Which fuse is for the cigarette lighter?
B Nissan Qashqai J10 2.0 fuse is responsible for the cigarette lighter F22 (15A) in the cabin block. If the cigarette lighter does not work, also check the relay K6 and the integrity of the wiring, since often the problem lies in a broken ground.
Why does fuse F10 (audio system) blow?
Most often this is due to short circuit in speakers or in the head unit itself. Check the circuit with a multimeter, turning off the speakers one by one. It could also be due to a faulty Bluetooth-module or USB port.
Can fuses of a different rating be used?
No, this is strictly prohibited. Installing an oversized fuse may result in fire, since the circuit will remain unprotected. If a standard fuse frequently blows, look for the cause (short circuit or overload) rather than increasing the rating.
Where can I find a fuse diagram for my configuration?
The fuse diagram may vary depending on the year of manufacture and configuration. You will find the exact diagram for your car:
- B instruction manual (on the last pages).
- On back of the fuse box cover (sometimes the diagram is put there).
- On specialized forums, for example, Qashqai Club Russia or Drive2.
If there is no diagram, you can use a universal scanner (for example, Launch CReader), which will show which circuits each fuse protects.
What should I do if the problem remains after replacing the fuse?
If the circuit still does not work after replacing the fuse, check:
- 🔌 Relayresponsible for this circuit (it may be faulty).
- 📊 Wiring for open circuit or short circuit.
- 🔋 Consumer (for example, a motor or a lamp) - it may be faulty.
- 🔧 Mass - poor contact with the body can also be the cause of a non-functioning chain.
If you cannot find the problem yourself, contact an auto electrician with experience working with Nissan.