Electrical circuits are protected by fuses. Headlights, fan motors, fuel pump and other powerful consumers are connected via relays.
Fuses and relays are installed in mounting blocks that are located in the passenger compartment and in engine compartment.
Fuses in the passenger compartment
Inside the car mounting block installed on the left side of the instrument panel under the cover.
Before replacing a blown fuse, you need to find out the cause of its blown.
Do not replace the fuse with a jumper or a fuse with a higher amperage, otherwise damage may result. electrical appliances and to the fire.
To replace the fuse in the car, open the cover in the instrument panel
Removing the replacement fuse with tweezers
The figure shows a blown fuse (the jumper shown by the arrow is blown).
To replace the fuse, install a spare fuse of the same rating and color.
Fuses in the engine compartment
In the engine compartment, fuses and relays are located on the right and left sides of the battery.
To check or replace the fuse in the mounting block in the engine compartment
Squeeze the lock of the cover of the mounting block
Remove the cover
If you need to replace the relay or fuse, remove it by swinging it from side to side
Install the parts in reverse order.
Methods for checking the electrical circuits of a car
When replacing fuses, it is forbidden to use screwdrivers and metal tools - this can cause a short circuit in the circuits of electrical equipment.
It is forbidden to disconnect the battery while the engine is running; violation of this rule will cause failure of the voltage regulator and elements of the vehicle's electronic equipment.
In order to avoid failure of the diodes of the rectifier unit of the generator, it is forbidden to check them with a megohmmeter or a test lamp supplied with a voltage of more than 12 V, and also to check the electrical circuits on the car with such devices without disconnecting the wires from the generator.
It is necessary to check the insulation resistance of the generator stator winding with increased voltage on the generator removed from the car, with the stator winding terminals disconnected from the rectifier unit.
When carrying out electric welding work on a car, it is necessary to disconnect the wires from the terminals battery and generator, as well as pads with wires from the electronic engine control unit.
Do not touch parts of the ignition system and high voltage wires on a running engine.
Don't run wires low voltage in one harness with high voltage wires.
Regularly clean the battery terminals and cable lugs from oxides and dirt.
When recharging the battery with charger disconnect the wires from the battery terminals.
A typical electrical circuit may include the main electrical element (consumer), various switches, relays, electric motors, fuses, fusible links or circuit breakers related to given element wiring and connectors used to connect the main element with the battery and the body - ground.
Before you begin troubleshooting any electrical circuit, carefully study the relevant diagram in order to understand its functional purpose as clearly as possible.
The circle of troubleshooting is usually narrowed by gradually identifying and eliminating normally functioning elements of the same circuit.
With the simultaneous failure of several elements or circuits, the most likely cause of the failure is the blown out of the corresponding fuse or a violation of contact with the mass ”(different circuits in many cases can be connected to one fuse or ground terminal).
Electrical equipment failures are often due to the simplest causes, such as corroded connector pins, blown fuses, blown fuses, or damaged relays.
Visually check the condition of all fuses, wiring, and circuit connectors before proceeding to a more detailed check of the health of its components.
When using diagnostic tools for troubleshooting, carefully plan (according to the attached wiring diagrams) where and in what sequence the device should be connected in the loop for the most effective troubleshooting.
Basic diagnostic tools include a circuit tester or voltmeter (you can also use a 12-volt test lamp with a kit). connecting wires), an open circuit indicator (probe), including a lamp, its own power source and a set of connecting wires.
In addition, you should always have a set of wires in the car for starting the engine from foreign source(battery of another vehicle) equipped with alligator clips and preferably an electrical circuit breaker. They can be used for shunting and connecting various elements of electrical equipment when diagnosing a circuit.
As already mentioned, before proceeding to check the circuit using diagnostic equipment, determine the connection points from the diagrams.
Checking the presence of supply voltage is carried out in case of a violation of the electrical circuit.
Connect one of the circuit tester leads to either the negative battery terminal or make good contact with the vehicle body. Connect the other tester lead to the connector pin on the circuit under test, preferably closest to the battery or fuse.
If control lamp tester lights up, there is supply voltage on this section of the circuit, which confirms the health of the circuit between this point of the circuit and the battery.
Proceed in the same way, explore the rest of the circuit. Detection of a supply voltage failure indicates a fault between this point in the circuit and the last one previously checked (where the supply voltage was).
In most cases, the cause of the failure is loosening of the connectors and damage to the contacts themselves (oxidation).
Assignment of fuses in the passenger compartment
|
No. (Amp) |
Protected circuit |
No.(Amp) |
Protected circuit |
|
Purifier windshield |
Electric heating of external rear-view mirrors |
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|
Instrument cluster, ECU |
Place for installation of a security alarm |
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|
Light switch reversing |
power steering |
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|
Electronic engine immobilizer (airbag and pretensioner control unit*) |
Gas equipment |
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|
Automatic transmission |
Airbag and pretensioner control unit |
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|
Rear wiper, reversing light switch |
|||
|
Left headlight (low beam) |
Interior lighting |
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|
Right headlight (low beam) |
General nutrition |
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|
Left headlight (high beam) |
Blocking of opening body elements |
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|
Right headlight (high beam) |
Fog lights |
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|
Rear power windows |
Electric heating rear window |
||
|
Front power windows |
Electric fan of the heating (air conditioning) and interior ventilation system |
||
|
ABS control unit |
Electric drive of external rear-view mirrors |
||
|
Electric heated front seats |
car radio |
||
|
Sound signal |
Heating (air conditioning) and interior ventilation systems |
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|
Left side marker light, switch alarm, cigarette lighter |
|||
|
Starboard marker light |
|||
|
Rear fog light switch |
*only for vehicles up to 2009 release. F6, F8, F22, F33-35 - reserve.
Assignment of relays and fuses in the engine compartment
|
Relay box/ fuses |
No. (current A) |
Purpose |
|
Burglar alarm, outdoor light switch, daytime running light relay |
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|
Ambient light switch, interior fuse box |
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|
Relay board power |
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|
Injection relay supply circuit |
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|
Injection relay supply circuit, the electronic unit engine management systems |
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|
Relay for switching on the air conditioning compressor |
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|
Electric fan relay |
||
|
Relay fuel pump |
||
|
Injection lock relay |
||
|
Separate relay |
Heater fan relay |
Finding a place short circuit
One method for finding a short circuit is to remove the fuse and connect a probe lamp or voltmeter instead.
There should be no voltage in the circuit. Pull the wiring while watching the probe lamp.
If the lamp starts flashing, then there is a short to ground in this wiring harness, possibly caused by chafing of the wire insulation.
A similar test can be carried out for each of the components of the electrical circuit by turning on the appropriate switches.
Checking the reliability of contact with the ground. Disconnect the battery and connect one of the wires of the probe lamp, which has an autonomous power source, to a point with a known good contact with "ground", connect the other wire of the lamp to the wire harness or connector contact being tested. If the lamp lights up, ground contact is good (and vice versa).
Check for continuity
The test is carried out to detect open circuits.
After disconnecting power to the circuit, test it with a self-powered test lamp.
Connect the probe leads to both ends of the circuit. If the control lamp lights up, there is no open circuit in the circuit. If the lamp does not light up, then this indicates the presence of an open circuit in the circuit.
Similarly, you can check the health of the switch by connecting a probe to its contacts. When the switch is turned to the ON position, the probe lamp should light up.
Break location
When diagnosing a section of an electrical circuit that is suspected of being open, visually detecting the cause of the malfunction turns out to be quite difficult, since it is difficult to visually check the terminals for corrosion or a violation of the quality of their contacts due to limited access to them (usually the terminals are covered by the body of the contact connector).
A sharp twitch of the body of the wiring harness block on the sensor or the wiring harness itself in many cases leads to the restoration of contact.
Keep this in mind when trying to isolate the cause of a suspected open circuit failure.
Intermittent failures may be due to oxidation of the terminals or a deterioration in the quality of the contacts.
Diagnosing faults in electrical circuits is not a difficult task, provided that the electric current is supplied to all consumers (lamp, electric motor, etc.) from the battery through wires through switches, relays, fuses, fuses, and then returns to battery through the mass (body) of the car.
Any problems associated with the failure of electrical equipment can be caused by the interruption of the supply to them electric current from the battery or return current to the battery.
4949 ViewsIf one or another electronic system has failed in the Renault Sandero Stepway, it is too early to sound the alarm. It is highly likely that one of the fuses has failed, and replacing it can solve the problem. Read below to learn how to perform this simple procedure, and where the blocks of fusible elements are located.
saloon shield
In a car like a Renault Sandero Stepway, for obvious reasons, is a large number of diverse electronic systems. In this regard, the manufacturer quite logically divided general scheme for two blocks.
The first of them is located directly in the cabin and includes replaceable elements responsible for all electronics that do not apply to the operation of the engine, gearbox and ignition system.
Thus, if the cigarette lighter, outdoor lighting or windshield wipers fail, you can safely open the plastic cover located on the left end of the torpedo, arm yourself with a pre-printed diagram and a prepared consumable, and then start work.
In order not to have to “wander” for a long time in search of the desired circuit, we will give a basic list of fuses in saloon block Renault and describe their purpose. So, turning your attention to the cell at index 1, you can easily find the element responsible for good work front wipers Renault Sandero stepway. A little lower, in the second position, it is easy to find the cause of the malfunction of the shield dashboard.
The cause of the Renault Sandero Stepway outdoor lighting malfunction should also be looked for in the cabin shield. If the dipped beam bulb is defective, but replacing it with a new one did not give convincing results, there is a good reason to replace the fuse at 9 or 10 positions. Problems with high beam a careful look at the 11th and 12th cell will help to decide.
And what's under the hood?
In addition to minor annoyances regarding the operation of electronics in the cabin, there are much more serious problems that relate to the fuel supply system, engine ECU, distribution system and others. important mechanisms who are responsible for smooth operation Renault Sandero engine.
However, most of the problems that arise are easily solved by replacing the fuses, which are located in the block located under the hood.
To get to it, you just need to pay attention to the black plastic shield, closed with a lid. Having snapped off the hook, the cover must be removed and work can begin, just as it was described in the first part of the article.
The most important, as you might expect, is cell number one. Here is the fuse responsible for the operation of the ignition switch and all Renault systems Sandero, which are activated when it is turned on. This is a high beam, an audio system, and even an air conditioner, so with similar malfunctions, it is necessary to look for their cause here.
Cell number 3 is responsible for the proper operation of the Renault Sandero fuel pump. Next to it, under the 4th position in the block, there is an element responsible for the operation of the computer. climate control they control the relays, the power of which passes through the 7th cell, as well as the cells numbered K1 and K2. For ignition coil and system
Start of sales start for Renault Stepway It was in 2008, when the manufacturer decided to create a hatchback car based on the then popular Renault Logan. In fact, Logan remained Logan, at least in most of its design decisions, with regard to suspension, bodywork, as well as electrical circuit car. That is why Renault Stepway can be fully correlated by the location and purpose of fuses and relays by comparing it with Renault Logan.
The only thing is that the model had a significant transformation in 2014, when the relay and fuse boxes began to look different, which means that the location of specific fuses became different.
Well, now about where the fuses and relays on the Renault Stepway are located and what they are responsible for until 2014 and after ...
Relays and fuses on Renault Stepway before 2014
Engine compartment
Like most cars, in this configuration Renault Stepway blocks are located in the engine compartment and in the cabin. Let's start with the block in the engine compartment. The block is located on the left side and installed in a plastic box. This is how it looks.
The location and purpose of the relays and fuses are shown in the table below.
| F01(60A) | Circuits: power supply of the ignition lock and all consumers powered by the lock; outdoor lighting switch |
| F02(30A) | The power circuit of the relay K3 of the fan of the cooling system (on a car without air conditioning) |
| F03(25A) | Power circuits: relay K5 of the fuel pump and ignition coil; main relay K6 engine management system |
| F04(5A) | Circuits: constant power supply to the engine management computer; windings of the main relay K6 of the engine management system |
| F05(15A) | Not used |
| F06(60A) | Passenger compartment fuse box power circuit |
| F07(40A) | Power circuits: air conditioner relay K4; relay K3 low speed cooling fan (on a car with air conditioning); relay K2 high speed cooling fan (on a vehicle with air conditioning) |
| F08 (50A) and F09 (25A) | ABS circuits |
In this case, the relays are responsible for the following:
K1 - stove fan relay, heater fan motor. See information about F36.
K2 - high speed cooling fan relay (for cars with air conditioning), radiator cooling fan motor.
Short circuit - low speed cooling fan relay (for cars with air conditioning) or radiator cooling fan relay (for cars without air conditioning), cooling fan motor (for cars with air conditioning - through a resistor).
K4 - air conditioner relay, electromagnetic clutch compressor.
See information about F36.
K5 - fuel pump relay and ignition coil.
K6 - the main relay of the engine management system, oxygen concentration sensor, speed sensor, fuel injectors, solenoid valve for adsorber purge, relay windings K2, KZ, K4.
K7 - headlight washer pump relay.
K8 - relay fog lights. See information about F31.
In the cabin
Now let's turn to the block located in the cabin ... The block itself is located on the left end of the instrument panel. It is covered with a plastic cap.
Fuses have the following symbols.
These designations are deciphered in the table below.
| F01(20A) | Windshield wiper; rear window heating relay coil |
| F02(5A) | Power supply of the instrument cluster; winding relay K5 fuel pump and ignition coil; power supply of the ECU of the engine management system from the ignition switch |
| F03(20A) | Lamps of signals of braking; reversing lamps; windshield washer |
| F04(10A) | Circuits: airbag control unit; direction indicator lamps; diagnostic connector of the engine management system; immobilizer coils |
| F09(10A) | Chains: lamps of head light of the left block headlight (dipped beam); signaling device for switching on the dipped headlights in the instrument cluster; headlight washer pump |
| F10 (10A) | Headlight lamps of the right block headlight (dipped beam) |
| F11 (10A) | Headlight lamps of the left block headlight (high beam); switch-on indicator high beam headlights in the instrument cluster |
| F12 (10A) | Right Headlight Bulbs (High Beam) |
| F13 (30A) and F14 (30A) | Power window circuits for the rear and front doors, respectively |
| F15 (10A) | ABS ECU |
| F17 (15A) | Signal |
| F18 (10A) | Lamps side light left block headlight; side light bulbs, left rear light; license plate lamps; illumination of the instrument cluster and controls on the instrument panel, console and lining of the floor tunnel; switch box buzzer |
| F19 (7.5A) | Side light lamps of the right block headlight; side light lamps of the right rear lamp; glove box lamps |
| F20 (7.5A) | Lamps and a signaling device of inclusion of a back antifog lantern |
| F21(5A) | Heated exterior mirror circuit |
| F28(15A) | Lamps of a plafond of illumination of salon; trunk light lamps; constant power supply of the head unit of sound reproduction |
| F29(15A) | Circuits: alarm switch; direction indicator switch; intermittent mode windshield wiper operation; central lock control; diagnostic socket of the engine management system |
| F30(20A) | Power circuit of the central lock |
| F31(15A) | Coil circuit relay K8 fog lights |
| F32(30A) | Heated rear window relay power circuit |
| F36(30A) | Power circuit relay K1 heater fan |
| F37(5A) | Circuits of electric drives of external rear-view mirrors |
| F38(10A) | cigarette lighter; power supply of the head unit of sound reproduction from the ignition switch |
| F39(30A) | Circuit winding relay K1 heater fan |
The fuse number 38 for 10A is responsible for the cigarette lighter.
Now let's move on to the next generation of the machine.
Renault Stepway relays and fuses after 2014
Actually, in this case, one could refer to an article that we already have on our website about Renault Logan, but since we already have this thematic article about Renault Stepway, we will provide information about it, simply by borrowing information.
In the engine compartment
The mounting block is located on the left, under the cover. To remove the cover, bend the clips and lift it up.
You will see the following picture.
| No. Ef - fuse, Er - relay | Current strength, A (nominal) | powered circuit |
| Ef 1 | 40 | Right windshield heating element |
| Ef 2 | 40 | Left windscreen heater |
| Ef 3 | 50 | ABS/ESP |
| Ef 4 | 60 | immobilizer, passenger compartment fuse supply circuit F28-F31 |
| Ef 5 | 60 | Supply of fuse circuits in the passenger compartment F11 , F23-F27 , F34 and F39 |
| Ef 6 | 30 | ABS/ESP |
| Ef 7 | 30 | heated rear window and mirrors |
| Ef 8 | 15 | front fog lights |
| Ef 9 | 15 | seat heating |
| Ef 10 | 15 | air conditioner clutch (equipment with air conditioning) |
| 25 | the first speed of the electric fan (complete set without air conditioning) | |
| Ef 11 | 25 | fuse for engine management relay |
| Ef 12 | 40 | cooling fan |
| Ef 13 | 15 | engine management system |
| Er 1 | 35 | left heated glass relay |
| Er 2 | 35 | right glass heating relay |
| Er 3 | 20 | fuel pump relay |
| Er 4 | 20 | air conditioner compressor or electric fan first speed relay (depending on configuration) |
| Er 5 | 35 | engine control relay |
In the cabin
Also, some of the fuses and relays are located in the cabin on the instrument panel. They are installed from the end on the left. When you remove the cover, you will see the following...
| F1 | 30 | power windows front |
| F2 | 10 | high beam left headlight |
| F3 | 10 | high beam right headlight |
| F4 | 10 | low beam left headlight |
| F5 | 10 | high beam right headlight |
| F6 | 5 | rear dimensions, number plate illumination, illumination |
| F7 | 5 | front dimensions |
| F8 | 30 | rear power windows |
| F9 | 7.5 | rear fog lamp |
| F10 | 15 | sound signal |
| F11 | 20 | central locking |
| F12 | 3 | ABS/ESP |
| F13 | 10 | interior lighting, air conditioning |
| F14 | 5 | steering angle sensor |
| F15 | 15 | windshield washer, parking radar, reversing lamp |
| F16 | 5 | audio system, glass heating, speed limiter |
| F17 | 7.5 | DRL |
| F18 | 7.5 | stop signal |
| F19 | 5 | control system |
| F20 | 5 | airbags |
| F21 | - | reserve |
| F22 | 5 | reserve |
| F23 | - | reserve |
| F24 | 15 | turn indicator |
| F25 | 10 | anti-theft system |
| F26 | 15 | electrical control unit |
| F27 | 20 | steering column switches (low beam entry) |
| F28 | - | reserve |
| F29 | 25 | steering column switches (high beam input) |
| F30 | - | reserve |
| F31 | 10 | dashboard |
| F32 | 7,5 | audio system |
| F33 | 15 | cigarette lighter |
| F34 | 15 | diagnostic socket |
| F35 | 5 | heated exterior mirrors |
| F36 | 5 | mirror drive |
| F37 | 30 | starter |
| F38 | 30 | wiper |
| F39 | 40 | air conditioner |
| R1 | 35 | air conditioning relay |
| R2 | 35 | relay rear heating glass |
The fuse number 33 at 15A is responsible for the cigarette lighter.
It remains only to bring the PDF file, the same is there, but it can be downloaded and used as a hint when checking and replacing fuses on a car.
4054 ViewsIN popular car Renault uses 2 sets of fuses to protect electrical circuits. One is installed under the torpedo of the passenger compartment with the instrument panel. The second is permanently mounted under the hood of the engine compartment. It is easy to find in the battery area. The main purpose of fusible links is to reliable protection electrical wiring when the current strength exceeds the limits of the established (calculated) indicators.
Each Sandero fuse is assigned a strictly defined power or auxiliary electrical circuit. When high current values appear, it protects the equipment and wires of the car by burning out.
A blown fuse will indicate a potential wiring location with a possible short circuit.
A properly installed jumper will prevent more serious malfunctions Renault Sandero and possible fire.
PSU under the hood
The mounting block is located to the left of the battery. Contains protection components for Renault power circuits and systems that control engine operation.
The engine compartment PSU is designed to protect:
- Ignition lock and consumers switched with its help;
- ECU power supply for the engine control unit;
- Power relays for fans and power supply of the main relay;
- Power supply for the fuse box near the instrument panel;
- Relay for air conditioning, fuel pumps and headlight washer.
PSU under the torpedo
The intended purpose of the assembly is design features and strictly calculated during design. The power supply unit to the left of the torpedo is located not far from the hood lock lever. If it is necessary to check parts and replace them, it will be necessary to dismantle the plastic decorative trim.
Mounting PSU is designed to protect:
- Lighting systems;
- Alarms;
- Power supply of the instrument cluster;
- ECU power supply for the engine control unit;
- Wiring for heating and cigarette lighter;
- Electric drives and relay windings.
For low-current Renault circuits, there is no need to use more complex protective elements. Fuses justify themselves well and just change in road conditions. For powerful consumers of heating, heater fans and engine cooling, connection is provided through powerful relay contacts.
Replacement
Before starting work on the replacement, you should check for a malfunction of the part using the device. When removing the jumpers, it is necessary to disconnect the "negative" terminal at the battery terminals. Before installing new elements, it is necessary to correctly determine and eliminate the cause of the malfunction.
To remove the jumper of small sizes, you will need the help of a tweezers-puller located on the interior assembly cover and having special ends. Safety elements big size easily removed with fingers. In the case of a tight fit and difficulty in removing, careful prying with a thin-slotted screwdriver is allowed.
It is easy to check the block in the motor compartment when the cover latch is retracted. After removing the cover, the faulty element is sometimes visible visually - a break in the fusible link. The torpedo fuse box is accessible by prying on the cover until it disengages with the latches.
Electrical equipment connected to the on-board electrical network popular car Renault Sandero, protected by two sets of fuses. The first is located under the dashboard. The other is deployed under the hood on a stationary basis. Its exact location is the battery. Namely, fusible jumpers are designed to provide protection for electrical wiring when the current increases in excess of allowed values. In this article, we will examine in detail where the fuses themselves are located and how they need to be replaced correctly, although in this case a circuit will come to the aid of many.
Each safety element on Renault Sandero and in the Stepway version is responsible for protecting a strictly defined power and additional electrical circuit. Increasing the current strength leads to its burnout, which in turn protects the wiring and equipment of the machine from failure.
The melting of jumpers is a consequence of a short circuit and indicates a specific location for an open circuit.
In order to prevent potential machine fires or more serious damage on Renault Sandero, and on the Stepway version, you must correctly select the location of the jumpers.
Fuse box under the hood
The fuse block is located on the left side of the battery, this is well shown in the diagram. It includes protection elements of systems responsible for the performance of the Renault engine and protecting the power circuits of the car.
An engine power supply is needed to protect:
- Ignition systems and consumers combined with a lock;
- Power relays for coolers and power supply to the main regulator;
- PSU power supply near the console with devices;
- Climate control regulator, fuel pump and washer elements of the front light optics of the machine.
Fuse box under the dashboard of the car
The design and its features are determined by the purpose of the assembly and are strictly determined during the design process. Where are they? The power supply unit on the left side of the dashboard is deployed near the handle that fixes the hood cover. If you need to inspect the parts, you will have to remove the plastic decor in the form of inserts.
- Light signaling systems;
- security complex;
- Power supply unit of electrical appliances;
- ECU power systems for the engine control unit;
- Furnace and cigarette lighter cable;
- Relay windings and electric drives.
For Renault Sandero circuits, including the Stepway version with low amperage, there is no need to use complex fuses. The fusible element is more functional and fully justifies its use. For the most powerful sources of energy consumption, stove coolers and engine cooling, powerful relay terminals are connected.
Repair work
Getting Started repair work you need to be sure of a breakdown of a consumable component, and a diagram will come in handy to understand exactly where certain fuses are located. This can be done using the device. Before removing the fuse, be sure to disconnect the negative contact on the battery. Before installing new consumables, it is necessary to correctly establish and correct the cause of the breakdown.
To remove small jumpers, Renault Sandero will have to use tweezers, which are located on the interior assembly cover and have special ends. Larger fuses can be easily pulled out with your fingers. If force is required to remove the jumper, use a thin slotted screwdriver. It should be used carefully so as not to damage other parts of the electrical circuit.
The PSU in the Renault Sandero engine compartment is checked by retracting the cover latch. After removing the cover, the malfunction can be detected immediately. The front console PSU can be accessed by simply opening the cover.
Most often, the cigarette lighter fuse on the board "burns". Power supply for electrical circuit this device carried out by a current of 10 A. From the jumper block through the wiring of a certain thickness, the current lends itself to the panel sockets. Various consumers can receive power from the cigarette lighter.
At the first sign of a malfunction, it is recommended to inspect the cigarette lighter circuit and solve the problem. The fuses are marked with a standard red marker F38 (10 A). Through this power circuit, the car radio also receives current. The electrical circuit is connected from the central ignition lock of the machine.
