Protection and switching unit
Location
The unit is located in the engine switching box (in engine compartment).
Rice. 5. Designation of fuses of the protection and switching unit
The designation of the protection and switching unit fuses is shown in Fig. 5.
The circuits protected by fuses (depending on the vehicle equipment level) are presented in Table 5.
A block located in the engine switching box (in the engine compartment). The assignment of contacts and circuits (depending on the vehicle equipment level) is presented in Table 6.
Table 5 Circuits protected by fuses (depending on vehicle equipment level) 
Table 6 Purpose of contacts and circuits (depending on the vehicle equipment level) 
Fuse and relay box in the passenger compartment
The unit is located in the cabin, in the lower left part dashboard(see Fig. 1).
The purpose of fuses and relays (depending on the vehicle equipment level) is given in Table 1.
Table 1 Purpose of fuses and relays (depending on the vehicle equipment level) 
Power fuse block
Rice. 7. The unit is located in the switching unit in the engine compartment under the protection and switching unit
The unit is located in the switching unit in the engine compartment under the protection and switching unit (1337) (Fig. 7).
The purpose of the fuses (depending on the vehicle equipment level) is presented in Table 7.
Table 7 Purpose of fuses (depending on the vehicle equipment level
Interior fuse and relay box (260) Relay box (1173) Single relay (1524) UCH (645) Protection and switching box (1337) Power circuit fuse box (777) Battery positive circuit protection fuse box (1033) Relay box ( 784) Relay block (299) Relay blocks of the liquefied petroleum gas power supply system (299) Location of ground connection points for vehicles with...
Location Fig. 1. Fuse and relay block located in the car interior The block is located in the cabin, in the lower left part of the dashboard (see Fig. 1). The purpose of fuses and relays (depending on the vehicle equipment level) is given in Table 1. Table 1 The purpose of fuses and relays (depending on the vehicle equipment level) ...
Location The unit is located in the dashboard, to the left of the interior electric fan. Rice. 2. The relay unit is located in the dashboard, to the left of the interior electric fan...
Location The relay is mounted on the accelerator pedal bracket. The purpose of the relay (depending on the vehicle equipment level) is presented in Table 2 and Table 3. Table 2 Relay purpose (depending on the vehicle equipment level) Table 3 The purpose of contacts and circuits (depending on the vehicle equipment level) Fig. 3. Relay attached to...
Location The unit is located in the passenger compartment, in the lower left part of the dashboard. Rice. 4. Block located in the passenger compartment, in the lower left part of the dashboard. The assignment of contacts and circuits (depending on the vehicle equipment level) is presented in Table 4. Table 4 Relay assignment (depending on the vehicle equipment level) ...
Location The unit is located in the engine switching box (in the engine compartment). Rice. 5. Designation of fuses of the protection and switching unit The designation of fuses of the protection and switching unit is shown in Fig. 5. Circuits protected by fuses (depending on the vehicle equipment level) are presented in Table 5. Fig. 6. Block, location...
Location Fig. 7. Block located in the switching unit in the engine compartment under the protection and switching unit (1337) The unit is located in the switching unit in the engine compartment under the protection and switching unit (1337) (Fig. 7). The purpose of the fuses (depending on the vehicle equipment level) is presented in Table 7. Table 7 The purpose of the fuse...
Location Fig. 8. Block located on the positive terminal of the battery The block is located on the positive terminal of the battery (Fig. 8). The purpose of the fuses (depending on the vehicle equipment level) is presented in Table 8. Table 8 The purpose of the fuses (depending on the vehicle equipment level...
Location Fig. 9. Block located in the switching unit in the engine compartment under the protection and switching unit (1337) The unit is located in the switching unit in the engine compartment under the protection and switching unit (1337) (Fig. 9). The purpose of the relay (depending on the vehicle equipment level) is presented in Table 9. Table 9 The purpose of the relay (depending on...
Location Fig. 10. Block located in the switching unit in the engine compartment under the protection and switching unit (1337) The unit is located in the switching unit in the engine compartment under the protection and switching unit (1337) (Fig. 10). The purpose of the relay (depending on the vehicle equipment level) is presented in Table 10. Table 10 The purpose of the relay (depending on...
Rice. 13. Ground connection points for a sedan car. In Fig. Figure 13 shows the ground connection points for a sedan car. Fig. 14. Ground connection points for a station wagon car. Ground connection points for a station wagon car are shown in Fig. 14. List of abbreviations and names of compounds with “ma...
This article discusses the fuses of Renault Megane 2 sedan, hatchback, station wagon 2003, 2004, 2005, 2006, 2007, 2008 model year with gasoline (K4J, K4M, F4R) and diesel (F4R) engines. Most of the vehicle's electrical power supply circuits are protected fuses. Powerful current consumers are connected via relays. Fuses and relays are installed in mounting blocks that are located in the vehicle interior and engine compartment.
Where is the fuse box located?
The fuses are installed in the mounting block inside the car. It is located in the lower left part of the instrument panel on the driver's side and is closed with a cover (see figure).
The cover shows the location of the fuses
Decoding the fuse box in the cabin
Number | Current strength, A | Protected circuit |
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Reserve |
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Reserve |
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Reserve |
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AP1A | Fan motor and interior air temperature sensor, interior rear view mirror, rain and light sensors |
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BPR1 | Heated driver and front passenger seats |
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Electric locks on all doors |
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Cigarette lighter |
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15RP | Heated exterior mirrors |
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SP15 | ABS control unit |
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Audio system head unit, on-board computer, electric motor for headlight washers, wind window and tailgate glass (hatchback, station wagon), fuel heating (K9K engine), heating (air conditioning) and interior ventilation control unit, security alarm control unit |
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SP17 | Stop signal |
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Reserve |
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BP55 | Driver's door window motor |
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BP70 | Front passenger door window motor |
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VSRZ | Instrument cluster, electric exterior mirrors |
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VR32 | Horn, diagnostic connector, windshield wiper motor |
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VR25 | Tailgate wiper motor |
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BP77 | Interior electrical control unit, additional equipment relay |
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Electric motor of the heating (air conditioning) and interior ventilation system |
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BP87/BP48 | Rear door window motors |
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20, 40 | BP93 | Electric sunroof motor, electric folding roof |
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— | Power window motor relay for all doors |
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Accessory relay |
Location mounting block fuses in the engine compartment.
1 — engine cooling system tank; 2 — air conditioning compressor pipeline; 3 — right support pendants power unit; 4 — oil filler plug; 5 - sensor absolute pressure in the receiver; 6 - receiver; 7 — transport eye; 8 - throttle assembly; 9 — main tank brake cylinder; 10 — air supply sleeve; eleven - the electronic unit engine control; 12 - body air filter; 13 — cover of the relay and fuse mounting block; 14 - battery; 15 — air intake sleeve; 16 — water distributor; 17 — knock sensor; 18 — air temperature sensor in the receiver; 19 — windshield washer reservoir cap
Fuse diagram under the hood
Video on how to get to the fuses in the engine compartment Renault Megane 2.
Decoding fuses under the hood of Renault Megane 2
Number | Current strength, A | Fuse/relay name Fuse/relay color | Protected circuit |
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Brown | Left side headlight lamp, cigarette lighter, switch central lock and alarm systems, headlight range control, heating (air conditioning) and ventilation control unit |
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Red | Left headlight high beam lamp |
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Red | Right headlight high beam lamp |
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Red | Low beam lamp of the right headlight, front and rear sensors body height, headlight leveling regulator, right headlight leveling electric motor |
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Red | Low beam lamp of the left headlight, electric motor for the corrector of the left headlight |
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Yellow | Fog lamps |
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Brown | Low beam lamp of the right headlight, right side marker, selector lever position indicator automatic transmission gears, power window control unit for all doors |
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ARSV Blue | Electric locking mechanism anti-theft device steering column |
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AR44 Beige | Driver airbag module, electric power steering |
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AR43 Brown | Automatic transmission selector position indicator, diagnostic connector |
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AR15 Beige | Electromechanism of the anti-theft device of the steering wheel column |
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AP4 Beige | Automatic transmission |
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LGPLG Red | LPG power system control unit |
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AR11 Red | Reversing lamps |
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VR42 Yellow | Relay solenoid valve liquefied gas supply systems |
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Internal Red | Air conditioning compressor electromagnetic clutch |
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Red | Reserve |
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Internal Red | Engine cooling fan |
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VR14 White | ABS control unit |
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Internal Green | Heated tailgate glass |
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Internal White | Starter relay |
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Internal White | Windshield wiper motor |
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Reserve |
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How to get to power fuses and relay.
1. Unscrew the two screws of the mounting block cover
3. Take out battery
4. Unscrew and remove bolt B securing the switching unit and move switching unit A aside.
All electronic system in the car is protected by fuses, thanks to which all equipment is reliably protected from electrical faults and various overloads. It often happens that one of the systems stops working, the reason for this is usually the failure of one of the fuses, and it needs to be changed.
If we look at the Renault Megane 2 fuse box, it is located in two places, one in the car on the driver’s side, the second in engine compartment.
Salon block 
To gain access to the elements located in the cabin, simply unscrew all the latches and remove the plastic cover. 
You can understand where each device is located using a diagram. Most often the fuses that fail are responsible for:
- Heating system
- Air conditioner
- stove
- Radio tape recorder
- Cigarette lighter
The first three devices are responsible for the safety parts marked 30, and the part itself with the number SP3, so it will be difficult to confuse it with another.
The safety element responsible for most devices has the number BCP3, and its cell is No. 25. Near it there is a relay that is responsible for all electrical equipment in the cabin, has the designation BP77 with cell 20. The element responsible for the power windows, headlight washers, and standard head unit has the values SP2 with cell number 10.
Block under the hood
Renault Megane 2 fuses located under the hood are responsible for:
- Electronic systems
- External lighting
- Engine electrical equipment
Located this block under the hood with right side. You can also understand which element is responsible for what using a diagram.
- Gasoline pump, No. 5, yellow. If the engine starts and then immediately stalls, but the starter works normally, then most likely the problem is with the standard fuel pump.
- Starter, No. 30, the part itself is white
- Lighting, part 10A, cell No. 1-4. In case it stops working parking lights, or near and high beam headlights, then you should first check the condition of these fusible elements, and if they burn out, change them as soon as possible.
To summarize, we can conclude that the Renault Megane fuse diagram will help you understand which element is located where and what is responsible. Thanks to it, you can produce everything without any problems. renovation work on one's own.
Functioning of each vehicle depends not only on the health of the engine, but also on the functionality of the fuses. One way or another, but the electrical circuit plays important role in car operation. In this article we will tell you about what functions the Renault Megane 2 fuses perform, where the block is located and how it is replaced.
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What are fuses and why are they needed?
What are fuses? What are they needed for? Where is the fuse block (FB) located? These questions came to the mind of every Renault car owner. Now we will try to answer these questions briefly. These elements are designed to open electrical circuit when the current in it increases sharply.
In more understandable terms, power supply components are necessary in order to protect the devices of the electrical equipment system from damage due to a short circuit or circuit overload. That is, if a problem suddenly arises in the circuit and a short circuit occurs, then the fuse will fail first, and then perhaps the device itself.
The fuse, as they say, takes the entire blow. And for good reason, because it is cheaper to purchase this element if it fails than to buy new power windows, mirrors, etc.
Location and diagram of power supply unit
In addition, the cars of the French manufacturer have another power supply unit, which is installed in the engine compartment. Its circuit will also be described below. Despite the same location of the power supply, the circuits in both car models differ from each other, so we will consider their description separately.
Megan 2
Below is a diagram of the power supply unit for the Renault Megane 2 car, located in the passenger compartment of the vehicle.
| Marking | Purpose |
| WITH | This component determines the functionality of the system heater fan. |
| D | The device ensures the operation of electric windows installed on the rear passenger doors. |
| E | Responsible for the operation of the hatch cover. |
| F | Provides operation of the ABS system. |
| G | This component is multifunctional and is responsible for several devices at once:
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| H | Ensures the functioning of brake lights. |
| L, M | This component provides the front doors. |
| N | Provides instrument panel functionality, multimedia system, as well as rear view devices. |
| O | This component provides the functioning of the audible buzzer. |
| P | If this component fails, the wiper operation rear window impossible. |
| R | Responsible for the operation of the air conditioning system. |
| S | Provides the functionality of a temperature sensor in the vehicle interior. |
| T | Heats the front seats. |
| U | Responsible for simultaneous blocking of all car doors. |
| W | Heats the rear view mirrors. |
| A | Power window relay. |
Below is a description of the unit located under the hood, as well as the purpose of its components. It is in this power supply that the fuse for other optical devices is located.
Megan 3
The designations for each component are shown below.
Below is a diagram of a power supply installed in the engine compartment of a car. We suggest that you familiarize yourself with the diagram and description of the components.
Removal and replacement process
So let's get started:
- First, open the hood and disconnect the terminals from the battery. If this is not done, dismantling the power supply can have dire consequences for the car.
- You will see the power supply located on the right side in the engine compartment. You need to unscrew the screws that secure the battery and remove it. Also unscrew the power supply cover. All bolts that need to be unscrewed are indicated in red in the photo.
- Using a 10mm wrench, unscrew the nut and remove the clamp with the bundle of wires.
- Now you need to unscrew the screws that secure the power supply directly.
- Having done this, the device can be dismantled.
