Most of the power circuits for electrical equipment in the Opel Astra are closed by fuses. In this article, we will describe in detail the fuse box Opel Astra N (diagram), its location, as well as the process of replacing the element.

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What is it and why are you needed

A fuse is a device that protects consumers of electricity and electrical circuits from short circuits and system overloads. It contains an insulating case, fusible links, as well as a special terminal that connects the fuse links and the electrical circuit. In order to avoid overheating, quartz sand is also included in some parts.

The fuse block is needed in order to protect the system and prevent a fire with a sharp increase in the current level. This happens due to the fact that they burn out first. Basically, such an element is disposable.

Location and scheme

The most popular location for the fuses is in the passenger compartment or under the hood (they are located near the washer). Each car has its own layout, depending on the location (near the cigarette lighter or washer). The scheme is necessary in order to better understand the ongoing processes, as well as the principle of operation. In some types of cars (for example, trucks) there may be more than one fuse box, and even 4 or 5. They can also be scattered around the car, but this rarely happens.

Fuse box in the engine compartment

In the Opel Astra car, the block is not one, but two. Their location in the engine compartment and cabin (not far from the cigarette lighter). The scheme of working processes in the Opel Astra and the elements protected by fuses is just below.

Removal and replacement process

The block described in this article has the properties to burn out, or individual parts require replacement. How to determine what needs to be removed and what to put in a new one?

Car enthusiasts often use such a simple method as simply pulling out the object, viewing it in the light, and if there is no significant damage, replacing it. In no case should parts be checked by this method, both in the Opel Astra H car and in all others! This method is very unreliable and doubtful! After all, processes such as a burned-out jumper or an oxidized part cannot be detected by eye.

Fuse box in the cabin

There is a method by which you need to check the integrity of a part in an Opel Astra car. Nothing needs to be taken out. Turn on the circuits that do not work (it can be a stove, and a light, or a tape recorder or dimensions). Next, check the voltage with a probe, first at one end, then at the other. Suppose there is voltage at one end (output), but not at the other. In this case, the spare part is damaged. This check in the car is carried out very quickly - within one minute.

You need to replace the burnt part with the same one at face value. The rating increases only when you add something else to the circuit that burned out. How to properly install a new part in the block? They are installed by analogy with the old ones. The only thing is that it is advisable to check new parts before replacing them. There is a way that is suitable for any system, it does not matter if they are located in the engine compartment or near the cigarette lighter. Thanks to him, you will quickly check the quality of the element so that your Opel Astra H car is not damaged.

So, wind the wires to the ends of the new part and one to the plus, the other to the minus.

Thus, a short circuit will occur. If the part is completely burned out, then the batch is really of high quality and you can continue the installation. And if the element began to melt, then this batch is undesirable to install. In situations of overvoltage inside the car, they will also melt, and this promises that electrical wiring will melt along with them, which will lead to serious consequences. So choose fuses carefully, check in time and take care of your Opel Astra H.

Video "Replacing the fuse"

We bring to your attention a video showing how to replace the washer motor fuse in an Opel Astra car.

Consider where the Opel Astra N fuses are located, how to get to them and open the blocks, how to determine the malfunction, and also what parts to choose for replacement and how to replace.

Opel Astra H fuses are needed to open an electrical circuit that has been overloaded. Simply put, if the current in the circuit increases, then the fuse blows, respectively, the circuit opens. This is necessary to prevent a short circuit, which can lead to the breakdown of all electronics in the car, and even to a fire. And the block was created for the convenience of the car owner. After all, if the fuses were scattered throughout the circuit, it would be very difficult to replace them. Due to the fact that they are all collected in one place, you do not have to look all over the car for the right one.

Where is the block in the Opel Astra H

Before starting work on any electrics in the Opel Astra, including fuses, it is better to remove the key from the ignition. Otherwise, you can get an electric shock, or accidentally arrange a short circuit. Opel Astra has 2 fuse boxes - one in the luggage compartment, the other under the hood.

In the basic configuration, the Opel Astra is equipped with one unit in the engine compartment, and the second, smaller, in the luggage compartment. The complete set has 2 full-fledged elements, in the same places. This is due to the fact that the electronic circuit is different, due to different electronic components.

How to access the fuses

Block under the hood:

• Insert a flat screwdriver into the gap between the cover and the latch
• Slightly bend, and lift the lid.
• The same goes for the other castle.

In some trim levels of the Opel Astra, the block is divided into two parts. In this case, it will be possible to remove the cover by simultaneously pressing the clips holding the cover.

In the trunk:

• For Opel Astra hatchback and station wagon, the block is located on the left in the trunk. It can be accessed by opening a hole in the casing by turning the latches.
• The sedan has a similar system, but the cap size is smaller.
• The block size depends on the configuration of the Opel Astra.

To gain access located in the engine compartment, press the two latches and remove the cover. To access the fuses and relays located in the luggage compartment, it is necessary to turn the two latches of the cover by 90º and fold it down.

Fuses in the trunk

1 (25 A) - power windows in the front doors. If the glass lift of one of the front doors suddenly stops working, first check this fuse, then the wiring at the door opening, between the body and the door. The wire could break off or the contact connector oxidized. Remove the trim from the door and check the wires inside the door. Check ground (brown wire between body and door). With the casing removed, also inspect the lift drive mechanism and check its motor.

If power windows work incorrectly, you can program them. To do this, disconnect the battery for a while, reconnect it, turn on the ignition, with the window closed, press and hold the power window up button for 3-5 seconds. Press and hold the button for each door separately.

• 2 - not used.
• 3 (7.5 A) - dashboard. If the devices or the backlight of the panel do not work, also check fuse 18. It may be the board of the panel itself or the wiring connector on the back of it.
• 4 (5 A) - air conditioning system.

If the air conditioner does not work, also check fuse 14 in this block and fuses 4, 20, 32 in the engine compartment, as well as relay K8_X125 under the hood. Incorrect settings in the vehicle menu may be set. Try removing the ECO mode, changing the climate control and air conditioning settings.

At negative temperatures, the air conditioner will not turn on due to the low gas pressure in the system, so in winter it is better to turn it on in warm boxes (for lubricating seals). Check the pressure, top up if necessary and check the system for leaks. Check the operation of the clutch and compressor, the serviceability of the A / C button. The exact cause will help to determine the diagnostics in the service using a device connected to the diagnostic connector.

• 5 (7.5 A) - airbags.
• 6,7,8,9,10 - not used.
• 11 (25 A) - heated rear window.

If the rear window stops fogging or the heating only turns on for a few seconds, also check fuse 18 in this block and relay K3_X131 in the block under the hood.

• 12 (15 A) - rear window cleaner. If rear wiper not working, check besides this, prev. 15 in the engine bay. A common problem is moisture getting into the motor and rear wiper mechanism.

Due to the formation of rust, some parts may jam. To remove the mechanism with the motor, you need to remove the tailgate trim, and then the mechanism itself. After removal, check the condition of the shaft by knocking out the sleeve that is put on it. If the shaft is clogged, rusted, or not spinning, knock it out, clean it, and reinstall it.

• 13 (5 A) - parking assistance system.
• 14 (7.5 A) - air conditioning system. See prev. 4.
• 15 - not used.
• 16 (5 A) - passenger detection system in the front seat, Open & Start system.
• 17 (5 A) - tire pressure sensor, rain sensor, air quality sensor, auto-dimming rear-view mirror.
• 18 (5 A) - devices and switches on the panel. See prev. 3.
• 19 - not used.
• 20 (10 A) - shock absorber control (CDC system).
• 21 (7.5 A) - heated side mirrors.

It usually turns on when you press the rear window heating button. If the heating of the side mirror stops working, check the wiring between the body and the door, as well as in the mirror itself. To do this, remove the trim or the entire mirror and check the contacts in the connector inside it. Often the lower contacts burn or oxidize. If the mirror heating does not work together with the rear window heating, also check fuse 11.

Wiring and connectors inside the rearview mirror in Opel Astra H

Decryption:

• 22 (20 A) - glass sliding roof (motor sunroof). See also prev. 34.
• 23 (25 A) - power windows of the rear doors. If one of the windows in the rear doors has stopped going up/down, check the wiring harness that comes out of the body and goes into the door.

Usually there is a broken brown wire that goes to ground. Also check the serviceability of the button on the door itself, the motor and the lift mechanism by removing the door trim. It does not hurt to check fuse 1, which is responsible for the operation of the front power windows.

• 24 (7.5 A) - diagnostic connector. The OBD2 connector is located under the handbrake, hidden behind the shelf cover. To diagnose errors, Tech2, MDI or OP-COM scanners are usually connected.
• 25 - not used.
• 26 (7.5 A) - electric folding side mirrors.
• 27 (5 A) - alarm, ultrasound sensor.

In the standard Opel Astra H alarm, to arm, you need to press the key fob button 2 times, after which the car will arm with a delay of 15 seconds. To simply close all the doors, you need to press the same button 1 time, then the security mode will not turn on. To open or close all windows, you need to press and hold the open / close button, respectively.

• 28 - not used.
• 29 (15 A) - cigarette lighter, 12 V socket on the center console. Usually this fuse blows when there is a short circuit in the cigarette lighter socket. If you insert non-standard connectors from appliances into it, make sure that there are no extraneous washers on them that can fly off and short out the contacts. Devices are best connected to an additional 12 V socket (if available) or to a splitter.
• 30 (15 A) - 12 V rear socket.
• 31, 32 - not used.
• 33 (15 A) - Open & Start system.
• 34 (25 A) - glass sliding roof (electric sunroof). See also prev. 22.
• 35 (15 A) - 12 V rear socket.
• 36 (20 A) - socket for connecting a trailer, towing device.
• 37 - not used.
• 38 (25 A) - central locking, terminal "30".

If the central locking stopped closing the doors, check if the interior light is on. If it is on, most likely the limit switch in one of the doors has failed and the unit “thinks” that one of the doors is open. This usually triggers an alarm. In case of problems with the central lock, you can try to throw off the battery terminal for a while and connect it back. To determine the exact cause, you can diagnose using the methods described at the end of the article or in a car service when connecting the device to the diagnostic connector.

• 39 (15 A) - heated driver's seat.
• 40 (15 A) - heated front passenger seat.

If the seats stop heating when this feature is enabled, check the connectors and wires underneath.

41, 42, 43, 44 - not used.

Fuses in the box under the hood

Decryption:

• 1 (20 A) - anti-lock brakes ABS.
• 2 (30 A) - anti-lock brakes ABS.

If the ABS lamp on the panel lights up and this system stops working,
check and clean the ABS sensors and speed sensors at the front and rear wheels, their wiring and connectors. It could also be the ABS control unit. A more accurate reason can be said by the result of diagnostics by the device. Usually, problems with ABS occur after replacing the wheel hubs or their bearings; when assembling the units, the sensors or their connectors are not installed correctly, which leads to chafing of the wires or lack of contact.

• 3 (30 A) - stove fan (climate control).
• 4 (30 A) - stove fan (air conditioner).

If the stove stops working, the fan itself may be clogged, its motor or thermal fuse has blown. Clogging is especially likely if the stove has not been serviced for a long time (several years).
Disassemble the stove, clean all components and lubricate the fan axle and bearings. To get to the stove, you need to remove the glove compartment. If the stove only works in the last maximum position, you need to change the resistor. It could also be the climate control unit or the air conditioner. If the stove blows cold air, check the level of antifreeze and the presence of air in the cooling system.

• 5 (30 or 40 A) - radiator fan.
• 6 (20, 30 or 40 A) - radiator fan motor.

If the cooling fan has stopped turning on, check the health of its engine by applying voltage from the battery directly. If the motor does not work, remove it, disassemble and clean, checking the brushes or replace with a new one. The case may be in the electronic control unit, temperature sensor, thermostat or wiring. Proper diagnosis will reveal the exact cause.

• 7 (10 A) - front and rear windshield washers. If the washer stops working when it gets cold, check the fluid level in the washer reservoir to see if it has frozen in the pipes and nozzles. Reheat if necessary and change. Also check the serviceability of the pump-pump in the tank by applying 12 V voltage and wiring to it.
• 8 (15 A) - sound signal. If the signal stopped working, most likely the matter is in the CIM module, steering column cable and its connector. In this case, the buttons located on the steering wheel (for example, the volume) usually stop working. A common problem. If the matter is in the SIM module, soldering the contacts on its board, repairing broken wires, or replacing it with a new module usually helps.
• 9 (25 A) - front and rear windshield washers. See above prev. 7.
• 10, 11, 12 - not used.
• 13 (15 A) - fog lights. If not working, check bulbs, connectors and wiring.
• 14 (30 A) - windshield wipers. If the “wipers” do not work, the mechanism in the gear motor or the wire contacts is most likely clogged or frozen. Take it apart and clean it. Also check the motor brushes.

Setting the interval for the operation of the wipers in intermittent mode: press the “wipers” lever down to operate them, wait for the required time and turn on the intermittent operation of their operation (switch the lever up). The cleaners will now run at the set interval. Valid values ​​are 2-15 seconds.

• 15 (30 A) - rear window cleaner. See prev. 12 in the trunk block.
• 16 (5 A) - Open & Start system, opening roof, ABS, brake light switch.
• 17 (25 A) - fuel filter heating (only for diesel engines).
• 18 (25 A) - starter. If it doesn’t turn, check the K1_X125 relay, the battery charge, the contacts of its terminals, the negative contact on the car body, the serviceability of the starter itself, the retractor relay and the wiring / connectors. If automatic transmission, check its selector, serviceability of the brake pedal switch. Diagnostics will indicate the exact cause.
• 19 (30 A) - electronic systems of the gearbox.
• 20 (10 A) - air conditioning compressor. See prev. 4 in the luggage block.
• 21 (20 A) - engine electronic systems.
• 22 (7.5 A) - engine electronic systems.
• 23 (10 A) - headlights, adaptive light (AFL system), electric tilt angle corrector.

If the dipped beam or high beam stops working, check and replace the bulbs. To replace the lamp in one of the headlights, you need to turn the wheels in the opposite direction, open a special hatch located in the wheel arch, remove the rubber boot from the headlight through it, remove the old lamp by turning it counterclockwise and install a new lamp by turning it to fix it in connector clockwise.

To turn on the “road home” mode of the headlights, you need to turn off the ignition and remove the key from the lock, open the driver's door and blink the high beam (shortly pressing the lever towards yourself). After that, when the driver's door is closed, the dipped beam + reversing lamp will be turned on, which will automatically turn off after 30 seconds.

• 24 (15 A) - fuel pump. If the pump does not pump gasoline and the engine does not start, check the wires under the hood in the corrugation between the engine control unit and the fuse box. Usually they are frayed there or the contact disappears in the connectors for connecting to these blocks. The exact cause can be determined by diagnostics and reading errors.
• 25 (15 A) - electronic systems of the gearbox.
• 26 (10 A) - engine electronic systems.
• 27 (5 A) - electric power steering.

If the steering wheel began to turn hard, check the power fuse FB3, the oil level in the power steering reservoir. The tank is located under the hood on the passenger side, in a recess near the windshield.

If the steering wheel turns tightly only in the cold, it works normally when it warms up, most likely the oil in the power steering system freezes, replace the oil with a more temperature-resistant one. In case of problems with oil, the steering rack may fail or jam. The pump could also fail, in this case, either repair or replace with a new one.

• 28 (5 A) - electronic transmission systems.
• 29 (7.5 A) - electronic transmission systems.
• 30 (10 A) - engine electronic systems.
• 31 (10 A) - headlights, adaptive light (AFL system), electric tilt angle corrector. See prev. 23.
• 32 (5 A) - air conditioning, clutch pedal switch, malfunction lamp in the brake system.
• 33 (5 A) - outdoor lighting (control unit), headlights, adaptive light (AFL system), electric tilt angle corrector.
• 34 (7.5 A) - steering module (control unit).
• 35 (20 A) - information and entertainment system.
• 36 (7.5) - Twin Audio system, display, radio, mob. telephone.

Relay in the block under the hood

• K1_X125 - starter relay.
• K2_X125 - relay of the electronic engine control unit (ECU).
• K5_X125 - relay operating modes of the windshield wiper.
• K6_X125 - front wiper relay. See prev. 14 in the block under the hood.
• K7_X125 - headlight washer relay (pump). If it does not work, check the fluid level in the washer, as well as the absence of blockages and freezing in the pipes and nozzles.
• K8_X125 - air conditioner compressor relay.
• K10_X125 - fuel pump relay. See prev. 24 in the block under the hood.
• K11_X125 - radiator fan relay.
• K12_X125 - radiator fan relay.
• K1Z_X125 - radiator fan relay. See prev. 5 in the block under the hood.
• K14_X125 - fuel filter heating relay (only for diesel engines).
• K15_X125 - stove fan relay. See prev. 3 in the block under the hood.
• K16_X125 - fog lamp relay. See prev. 13 in the block under the hood.

Power fuses in the engine compartment of the Opel Astra H

• FB1 (50 A) - electro-hydraulic hard top HT.
• FB2 (80 A) - glow time controller (only for diesel engine).
• FB3 (80 A) - electro-hydraulic power steering. See prev. 27 in the block under the hood.
• FB4 (30 A) - autonomous heater IH.
• FB4 (100 A) - additional electric heater in the EH cabin.
• FB5 (80 A) - fuse and relay box in the trunk.
• FB6 (80 A) - fuse and relay box in the trunk.

Watch an interesting video on this topic:

This model has been in production since 2004. For a long time of operation, the owners of this car have accumulated considerable experience in maintenance and repair. When faced with electrical problems, many drivers become lost in electronic systems, wires and connectors. And in this model, finding the cause of an electrical malfunction is not so easy even for trained people, because the fuses and relays of the Opel Astra H differ depending on the configuration.

Common problems, ways to fix them and error diagnosis - all this may be needed to fix Astra.

In the basic and complete sets, the fuses and relays of the Opel Astra H differ in numbering. For example, in the trunk in the basic version there is a small fuse and relay box, and in the full version there is a full-fledged one. Under the hood, the fuse numbering of the basic version does not match the full version. This is due to the difference in electronic components and different electrical circuits.

This article discusses the mounting blocks of a complete set.

Fuses in trunk:

1 (25 A) - power windows in the front doors. If the glass lift of one of the front doors suddenly stops working, first check this fuse, then the wiring at the door opening, between the body and the door.

The wire could break off or the contact connector oxidized. Remove the trim from the door and check the wires inside the door. Check ground (brown wire between body and door). With the casing removed, also inspect the lift drive mechanism and check its motor.

If the power windows do not work correctly, you can program them. To do this, disconnect the battery for a while, reconnect it, turn on the ignition, with the window closed, press and hold the power window up button for 3-5 seconds. Press and hold the button for each door separately.

2 - not used.

3 (7.5 A) - dashboard. If the devices or the backlight of the panel do not work, also check fuse 18. It may be the board of the panel itself or the wiring connector on its reverse side.

4 (5 A) - air conditioning system. If the air conditioner does not work, also check fuse 14 in this block and fuses 4, 20, 32 in the engine compartment, as well as relay K8_X125 under the hood. Incorrect settings in the vehicle menu may be set. Try removing the ECO mode, changing the climate control and air conditioning settings.

At negative temperatures, the air conditioner will not turn on due to the low gas pressure in the system, so in winter it is better to turn it on in warm boxes (for lubricating seals). Check the pressure, top up if necessary and check the system for leaks. Check the operation of the clutch and compressor, the serviceability of the A / C button. The exact cause will help to determine the diagnostics in the service using a device connected to the diagnostic connector.

5 (7.5 A) - airbags.

6,7,8,9,10 - not used.

11 (25 A) - heated rear window. If the rear window stops fogging or the heating only turns on for a few seconds, also check fuse 18 in this block and relay K3_X131 in the block under the hood.

12 (15 A) - rear window cleaner. If the rear "wiper" does not work, check in addition, prev. 15 in the engine bay. A common problem is moisture getting into the motor and rear wiper mechanism. Due to the formation of rust, some parts may jam.

To remove the mechanism with the motor, you need to remove the tailgate trim, and then the mechanism itself. After removal, check the condition of the shaft by knocking out the sleeve that is put on it. If the shaft is clogged, rusted, or not spinning, knock it out, clean it, and reinstall it.

13 (5 A) - parking assistance system.

14 (7.5 A) - air conditioning system. See prev. 4.

15 - not used.

16 (5 A) - passenger detection system in the front seat, Open & Start system.

17 (5 A) - tire pressure sensor, rain sensor, air quality sensor, auto-dimming rear-view mirror.

18 (5 A) - devices and switches on the panel. See prev. 3.

19 - not used.

20 (10 A) - shock absorber control (CDC system).

21 (7.5 A) - heated side mirrors. It usually turns on when you press the rear window heating button. If the heating of the side mirror stops working, check the wiring between the body and the door, as well as in the mirror itself. To do this, remove the trim or the entire mirror and check the contacts in the connector inside it.

Often the lower contacts burn or oxidize. If the heated mirrors do not work together with the rear window heating, also check fuse 11. Photo of the wiring and mechanism inside the mirror with the trim removed:

22 (20 A) - glass sliding roof (motor sunroof). See also prev. 34.

23 (25 A) - power windows of the rear doors. If one of the windows in the rear doors has stopped going up/down, check the wiring harness that comes out of the body and goes into the door. Usually there is a broken brown wire that goes to ground.

Also check the serviceability of the button on the door itself, the motor and the lift mechanism by removing the door trim. It does not hurt to check fuse 1, which is responsible for the operation of the front power windows.

24 (7.5 A) - diagnostic connector. The OBD2 connector is located under the handbrake, hidden behind the shelf cover. To diagnose errors, Tech2, MDI or OP-COM scanners are usually connected.

25 - not used.

26 (7.5 A) - electric folding side mirrors.

27 (5 A) - alarm, ultrasound sensor. In the standard Opel Astra H alarm, to arm, you need to press the key fob button 2 times, after which the car will arm with a delay of 15 seconds. To simply close all the doors, you need to press the same button 1 time, then the security mode will not turn on. To open or close all windows, you need to press and hold the open / close button, respectively.

28 - not used.

29 (15 A) - cigarette lighter, 12 V socket on the center console. Usually this fuse blows when there is a short circuit in the cigarette lighter socket. If you insert non-standard connectors from appliances into it, make sure that there are no extraneous washers on them that can fly off and short out the contacts. Devices are best connected to an additional 12 V socket (if available) or to a splitter.

30 (15 A) - 12 V rear outlet.

31, 32 - not used.

33 (15 A) - Open & Start system.

34 (25 A) - glass sliding roof (electric sunroof). See also prev. 22.

35 (15 A) - 12 V rear socket.

36 (20 A) - socket for connecting a trailer, towing device.

37 - not used.

38 (25 A) - central locking, terminal "30". For problems with the alarm, see 27. If the central locking stops closing the doors, check if the interior light is on. If it is on, most likely the limit switch in one of the doors has failed and the unit “thinks” that one of the doors is open. This usually triggers an alarm.

In case of problems with the central lock, you can try to throw off the battery terminal for a while and connect it back. To determine the exact cause, you can diagnose using the methods described at the end of the article or in a car service when connecting the device to the diagnostic connector.

39 (15 A) - heated driver's seat.
40 (15 A) - front passenger seat heating. If the seats stop heating when this feature is enabled, check the connectors and wires underneath.

41, 42, 43, 44 - not used.

Relay in trunk:

K1_X131 - ignition lock relay, output "15".

K2_X131 - ignition lock relay, output "15A".

K3_X131 - rear window heating relay. See prev. eleven.

Fuses in the box under the hood:

The engine compartment mounting block is located on the left driver's side, under the hood between the pillar support and the left headlight. To get to it, you need to open the lid by prying it around the edges.

1 (20 A) - ABS anti-lock brakes.
2 (30 A) - ABS anti-lock brakes. If the ABS lamp on the panel lights up and this system stops working, check and clean the ABS sensors and speed sensors at the front and rear wheels, their wiring and connectors. It could also be the ABS control unit. A more accurate reason can be said by the result of diagnostics by the device.

Usually, problems with ABS occur after replacing the wheel hubs or their bearings; when assembling the units, the sensors or their connectors are not installed correctly, which leads to chafing of the wires or lack of contact.

3 (30 A) - stove fan (climate control).

4 (30 A) - stove fan (air conditioner). If the stove stops working, the fan itself may be clogged, its motor or thermal fuse has blown. Clogging is especially likely if the stove has not been serviced for a long time (several years). Disassemble the stove, clean all components and lubricate the fan axle and bearings.

To get to the stove, you need to remove the glove compartment. If the stove only works in the last maximum position, you need to change the resistor. It could also be the climate control unit or the air conditioner. If the stove blows cold air, check the level of antifreeze and the presence of air in the cooling system.

5 (30 or 40 A) - radiator fan.

6 (20, 30 or 40 A) - radiator fan motor. If the cooling fan has stopped turning on, check the health of its engine by applying voltage from the battery directly. If the motor does not work, remove it, disassemble and clean, checking the brushes or replace with a new one. The case may be in the electronic control unit, temperature sensor, thermostat or wiring. Proper diagnosis will reveal the exact cause.

7 (10 A) - front and rear windshield washers. If the washer stops working when it gets cold, check the fluid level in the washer reservoir to see if it has frozen in the pipes and nozzles. Reheat if necessary and change. Also check the serviceability of the pump-pump in the tank by applying 12 V voltage and wiring to it.

8 (15 A) - sound signal. If the signal stopped working, most likely the matter is in the CIM module, steering column cable and its connector. In this case, the buttons located on the steering wheel (for example, the volume) usually stop working. A common problem. If the matter is in the SIM module, soldering the contacts on its board, repairing broken wires, or replacing it with a new module usually helps.

9 (25 A) - front and rear windshield washers. See above prev. 7.

10, 11, 12 - not used.

13 (15 A) - fog lights. If not working, check bulbs, connectors and wiring.

14 (30 A) - windshield wipers. If the “wipers” do not work, the mechanism in the gear motor or the wire contacts is most likely clogged or frozen. Take it apart and clean it. Also check the motor brushes.
Setting the interval for the operation of the wipers in intermittent mode: press the “wipers” lever down to operate them, wait for the required time and turn on the intermittent operation of their operation (switch the lever up). The cleaners will now run at the set interval. Valid values ​​are 2-15 seconds.

15 (30 A) - rear window cleaner. See prev. 12 in the trunk block.

16 (5 A) - Open & Start system, opening roof, ABS, brake light switch.

17 (25 A) - fuel filter heating (only for diesel engines).

18 (25 A) - starter. If it doesn’t turn, check the K1_X125 relay, the battery charge, the contacts of its terminals, the negative contact on the car body, the serviceability of the starter itself, the retractor relay and the wiring / connectors. If automatic transmission, check its selector, serviceability of the brake pedal switch. Diagnostics will indicate the exact cause.

19 (30 A) - electronic systems of the gearbox.

20 (10 A) - air conditioning compressor. See prev. 4 in the luggage block.

21 (20 A) - engine electronic systems.

22 (7.5 A) - engine electronic systems.

23 (10 A) - headlights, adaptive light (AFL system), electric tilt angle corrector. If the dipped beam or high beam stops working, check and replace the bulbs. To replace the lamp in one of the headlights, you need to turn the wheels in the opposite direction, open a special hatch located in the wheel arch, remove the rubber boot from the headlight through it, remove the old lamp by turning it counterclockwise and install a new lamp by turning it to fix it in connector clockwise.

To turn on the “road home” mode of the headlights, you need to turn off the ignition and remove the key from the lock, open the driver's door and blink the high beam (shortly pressing the lever towards yourself). After that, when the driver's door is closed, the dipped beam + reversing lamp will be turned on, which will automatically turn off after 30 seconds.

24 (15 A) - fuel pump. If the pump does not pump gasoline and the engine does not start, check the wires under the hood in the corrugation between the engine control unit and the fuse box. Usually they are frayed there or the contact disappears in the connectors for connecting to these blocks. The exact cause can be determined by diagnostics and reading errors.

25 (15 A) - electronic systems of the gearbox.

26 (10 A) - engine electronic systems.

27 (5 A) - electric power steering. If the steering wheel began to turn hard, check the power fuse FB3, the oil level in the power steering reservoir. The tank is located under the hood on the passenger side, in a recess near the windshield.

If the steering wheel turns tightly only in the cold, it works normally when it warms up, most likely the oil in the power steering system freezes, replace the oil with a more temperature-resistant one. In case of problems with oil, the steering rack may fail or jam. The pump could also fail, in this case, either repair or replace with a new one.

28 (5 A) - electronic transmission systems.

29 (7.5 A) - electronic transmission systems.

30 (10 A) - engine electronic systems.

31 (10 A) - headlights, adaptive light (AFL system), electric tilt angle corrector. See prev. 23.

32 (5 A) - air conditioning, clutch pedal switch, malfunction lamp in the brake system.

33 (5 A) - outdoor lighting (control unit), headlights, adaptive light (AFL system), electric tilt angle corrector.

34 (7.5 A) - steering module (control unit).

35 (20 A) - information and entertainment system.

36 (7.5) - Twin Audio system, display, radio, mob. telephone.

Relay in the block under the hood:

K1_X125 - starter relay. See prev. 18 in the block under the hood.

K2_X125 - relay of the electronic engine control unit (ECU).

KZ_X125 - output "5".

K5_X125 - relay operating modes of the windshield wiper.

K6_X125 - front wiper relay. See prev. 14 in the block under the hood.

K7_X125 - headlight washer relay (pump). If it does not work, check the fluid level in the washer, as well as the absence of blockages and freezing in the pipes and nozzles.

K8_X125 - air conditioner compressor relay.

K10_X125 - fuel pump relay. See prev. 24 in the block under the hood.

K11_X125 - radiator fan relay.
K12_X125 - radiator fan relay.
K1Z_X125 - radiator fan relay. See prev. 5 in the block under the hood.

K14_X125 - fuel filter heating relay (only for diesel engines).

K15_X125 - stove fan relay. See prev. 3 in the block under the hood.

K16_X125 - fog lamp relay. See prev. 13 in the block under the hood.

Power fuses in the engine compartment of the Opel Astra H:

The power fuse box is located under the hood, next to the main fuse box, between it and the left pillar support. To get to it, you need to open the lid.

FB1 (50 A) - electro-hydraulic hard top HT.

FB2 (80 A) - glow time controller (diesel engine only).

FB3 (80 A) - electro-hydraulic power steering. See prev. 27 in the block under the hood.

FB4 (30 A) - auxiliary heater IH.

FB4 (100 A) - additional electric heater in the cabin EH.

FB5 (80 A) - fuse and relay box in the trunk.

FB6 (80 A) - fuse and relay box in the trunk.

Error diagnostics:

To determine the cause of the malfunction, you can diagnose the system without a special device using the methods described below.

For manual transmissions or Easytronic:

• while continuing to hold the pedals, wait a few seconds until error messages appear on the on-board computer display

For automatic transmissions:

• insert the key into the ignition
• turn the key, turning on the ignition, but not starting the engine
• depress the brake pedal and keep it pressed
• shift gear lever to position D
• turn off the ignition, release the brake pedal
• depress the accelerator and brake pedal at the same time and hold them down
• turn the key, turning on the ignition, but not starting the engine
• while holding the pedals, wait a few seconds until messages appear on the on-board computer display

In diagnostic mode, the ECN message with error codes will appear on the display. 4 digits - error code, 2 digits - value.

The fuse box in a car is an important element in ensuring the good condition of all electrical mechanisms. Each fuse on the Opel Astra G is responsible for a specific section of the electrical circuit. The burnout of this part is a signal of a malfunction or improper operation of the machine components.

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Location and wiring diagram

Circuit breakers car Opel Astra G are located in separate mounting blocks of the electrical system, which are installed in the instrument panel and engine compartment. The last block contains fusible links and relay mechanisms for the electrical circuits most loaded in terms of current strength. This position of the safety elements allows you to ensure the reliable operation of the car's electrics. Both blocks in cars before 2001 and later have differences in the location of the components. The designation of fuses and relays is printed on the wiring diagram located on the rear cover of the passenger compartment.

Scheme of installation of elements in the cabin block

On Astra cars manufactured in 1998, 1999 and 2000, on the left side of the block located under the hood, there are sockets F1-F5 for more powerful fuses. To the right - two rows of vertically installed fuse-links marked F6-F23 and F24-F41. Above the fuse sockets there are regular places for spare parts and plastic pliers, which are used when replacing parts. In the same block there are eight more fuse-links, which are the same for all Opel Astra G cars and arranged vertically in a row.

Fuses and relays are installed in the mounting block located in the cabin. The fuses are rated from 7.5 to 40 amps and are located in two rows at the bottom of the block.

Layout of the relay in the early block The wiring diagram of the early version of the cabin unit, the fuse locations are circled in red, the places for spare inserts and plastic tongs are circled in green Block of machines from 2001 with fuse designation Wiring diagram of the relay in the late unit

Fuse decoding

A complete description of the Opel Astra G fuses is given in the tables in the photo.

Fuses in the old block, part 1 Fuses in the old block, part 2 Fuses in the old block, part 3 Fuses in the new block, part 1 Fuses in the new block, part 2 Fuses in the new block, part 3

The purpose of the eight fuses in the block under the hood of the car is as follows (from top to bottom, using the example of a 2003 car):

• 1 (60 A) - ignition switch circuits;
• 2 (60 A) - general protection of the fuse box in the cabin, engine control mechanism;
• 3 (60 A) - relay in the dashboard of the car;
• 4 (40 A) - protection of electric motors of the cooling and air conditioning system from short circuit;
• 5 (60 A) - ABS block;
• 6 (30 A) - circuits of engine control units (gasoline pump, injection system, ignition, etc.);
• 7 (80 A) - power steering;
• 8 (40 A) - protection of electric motors of the cooling and air conditioning system from short circuit (only on machines with air conditioning).

Relay type and purpose

The decoding of the relay of the early sample mounting block is as follows:

• 1 - encoding connector;
• 2 - horn relay;
• 3 - switching on the high beam;
• 4 - rear wiper activation relay;
• 5 - heated mirrors;
• 6 - turn on the front fog lights;
• 7 - activation of the rear fog lamp;
• 8 - right direction indicators;
• 9 - left direction indicators;
• 10 - built-in telephone relay;
• 11 - reserve;
• 12 - front wiper activation relay;
• 13 - reserve;
• 14 - power supply for rear window heating.

The turn signal relay can be made in a common housing or in separate parts.

The video from kivalssl1 shows the installation of the "comfort" block relay in the Astra G mounting block.

On models 2001, 2002, 2003, 2004 and the following years of release, the purpose of the relay has slightly changed. Relay 11 was added, which is responsible for transmitting signals from wheel rotation sensors and relay 13 for interior lighting. On the side, a “comfort” device is inserted into the mounting block, indicated in the diagram by the number 15.

Below is the designation of several more relays in the engine compartment block.

How to replace yourself?

No special tools are required to replace elements in the interior mounting block. All you need is a slotted screwdriver and a set of new fuses.

Replacing fuses

A guide to replacing failed fuses, for example, those responsible for the operation of the stove or cigarette lighter, is as follows:

1. Turn off the vehicle's ignition system.
2. Open a small folding box on the instrument panel, located in the area of ​​\u200b\u200bthe knee of the driver's left leg.
3. Press the plastic clips located on the sides and remove the box body from the frame.
4. Unscrew the four slotted screws securing the frame.
5. Remove the mounting block from its place by pulling on the bottom.
6. Replace defective fuse. To do this, the damaged fusible element must be removed from the nest. There are small plastic tongs included with the mounting block. They need to clamp the fuse case, pull it out of the seat and insert a new part.
7. Visually check the condition of the remaining fuse links.
8. Perform reassembly.

It is important to note that the new fuse must have the same rating as the failed fuse. In the absence of such a detail, an element of a slightly larger value can be used. Only first you need to check the working condition of the circuit, for this you should install a fuse from any other socket with the required rating. If the fuse remains intact, then a part with a higher rating should be put in its place. But at the first opportunity, it should be replaced with a part with a regular rating. Since prolonged use of an incorrect fuse may damage the vehicle's electrical systems and cause a fire. If, after replacing the fuse, it immediately fails, then it is necessary to find out the cause of the overload in the electrical circuit.

The process for changing fuses on a more modern 2008 Opel Astra H or 2012 Opel GTC is identical to the above.

Replacing parts in the engine compartment is even easier. To do this, unfasten the plastic covers of the blocks and change the damaged fuses or relays.

Removing the relay box cover Removing the fuse box cover

Block replacement

During the operation of the car, situations may arise in which the mounting blocks are severely damaged. In this case, the owners are forced to change the entire blocks, buying new parts or using those removed from other machines.

To perform such a replacement, you need experience with electrical systems, as well as various tools and devices, so this procedure is best done in a specialized workshop.

But in the case when it is decided to replace the block inside the cabin with your own hands, the sequence of actions will be as follows:

1. De-energize the vehicle by disconnecting the battery. Before this, you need to make sure that the code for the standard audio system is saved.
2. Get access to the mounting block by analogy with the procedure for replacing fuses.
3. Disconnect the pads and wires from the old block.
4. Visually compare the appearance of the old and new unit, check the identity of the fuse and relay ratings.
5. Install the new mechanism in place, making sure that the colors of the cables match.
6. Connect the power to the car and check the functionality of the systems.
7. In the event of inoperability of components or blown fuses, it is necessary to find out the causes of the problems.