2. The main fuses are located in the block on the driver's side under the trim panels. To access the fuse box on the Astra model, remove the tray for small items on the driver's side, unscrew the screws and remove the fuse panel (see photo). On the Zafira model, remove the cover under the front trim. Some of the fuses are located in the mounting block inside the engine compartment.
Circuit breakers
Fuses are used to break the circuit when the current reaches a certain value, in order to protect elements and wires that can be damaged by too much current. A sudden increase in current is usually caused by a fault in the circuit, most often a short circuit.
Most of the fuses are located in the fuse box on the left side of the instrument panel, additional fuses are located in the fuse and relay box on the right side of the engine compartment. On later models, one or three additional high power fuses can be installed in the engine compartment, near the battery. On models that have one fuse near the battery, it protects the electrical circuits of the anti-lock brake system. If three fuses are installed, the two fuses closer to the battery protect the charging system circuit, and the third fuse farther from the battery protects the anti-lock brake circuits.
To gain access to the fuse box on the instrument panel, open the cover. To access the fuses located in the fuse box in the engine compartment, simply remove the cover (see photo).
The designations of the circuits protected by fuses are indicated on the cover of the fuse box.
Before removing a fuse, turn off the corresponding circuit (or ignition), then remove the fuse from the contacts. A wire should be visible inside the fuse; if the fuse is blown, the wire will be broken or melted.
Always use fuses of the required capacity. Never use a fuse of a different rating or replace it with something else. Do not replace the fuse more than once without correcting the source of the problem. The power of the fuse is indicated on the top of the fuse; Please note that the fuses are in different colors for easy identification
If a fuse blows immediately after replacement, do not replace it again until you have installed and corrected the cause of the problem. In most cases, the fault is caused by a short circuit caused by poor insulation. If the fuse is protecting multiple circuits, try to find the circuit that is causing the fuse to blow, including each circuit in turn (if it is possible). Always have a set of spare fuses of different ratings in your vehicle. They must be fixed at the base of the fuse box.
Relay
A relay is an electronic switch that is used for the following reasons:
- A) The relay can switch high voltage current without being in the circuit that carries that current, and this allows the use of thinner wires and contacts.
- b) A relay can have more than one control source, unlike a mechanical switch.
- V) The relay may have a timer function, such as a relay used for intermittent windshield wipers.
Most of the relays are located in the fuse box in the engine compartment or behind the lower instrument panel trim panel on the passenger side. Depending on the type of engine, year of manufacture and equipment installed, additional individual relays can be installed in the engine compartment and in various other places on the vehicle.
If a circuit or system controlled by a relay fails and you suspect the relay is to blame, turn on the system. If the relay is working, you should hear a click when power is applied to it, in this case, some other element of the system or connecting wires is the source of the malfunction. If the relay does not actuate, then either the relay is not receiving power or switching voltage, or the relay itself is defective. Checking the relay is carried out by replacing it with a working relay. Be careful when doing this, because while some relays look and function the same, there are relays that look similar but function differently.
Before removing the relay, first check that the ignition is off. Then the relay can simply be removed from the socket and a new one inserted in its place.
3. Protected circuits are marked with mnemonic symbols (see photo).
4. A blown fuse can be identified by a melted current filament.
5. Before replacing a fuse, make sure that this circuit is disconnected. Get the fuse (see photo).
6. Before replacement, determine the cause of the burnout and eliminate it. The new fuse must match the one being replaced.
7. The rated current of the fuse can be determined by color marking.
8. A spare fuse is located in the clips in the fuse panel.
Relay
9. Relays are used in the electrical equipment system, which are used both for closing and opening circuits with high current, and for operating in timer mode (e.g. in the wiper/washer circuit).
10. The main relays are mounted on the fuse panel on the left side of the engine compartment (see photo).
11. If, upon failure of the circuit controlled by the relay, characteristic clicks are not heard, then the relay itself is faulty. Otherwise, you should look for a malfunction either in the circuit itself or in the relay control circuit. In this case, it is recommended to replace the relay with a known-good one that exactly matches the one being replaced.
12. The relay comes out of the socket on the panel (see photo). Disconnect the relevant circuit before removing the relay.
13. There is a timer in the main fuse box (mounted on skids), which combines several relays.
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