Location of fuses and fusible links and their replacement (Opel Astra J)

Most of the power circuits of the car's electrical equipment are protected by fuses. Headlights, fan motors, fuel pump and other powerful consumers of current are connected via relays. Fuses and relays are installed in mounting blocks, which are located in the trunk of the car under the side paneling on the left side, in the engine compartment next to the battery and under the instrument panel on the left side.

In addition, fuse links of power circuits are mounted on the tip of the positive terminal wire of the battery.

Fig. 1. Designations of fuses and fusible links installed in the trunk mounting block

The designations of the fuses in the mounting block installed in the trunk under the left side panel trim are shown in Fig. 1.

Table 1. Purpose of fuses and fusible links installed in the trunk mounting block

№	Protected circuits
1	Trailer module
2	Trailer Nest
3	Parking assistance system
4	—
5	—
6	—
7	—
8	Anti-theft alarm
9	—
10	—
11	Trailer module, trailer socket
12	—
13	—
14	—
15	—
16	—
17	—
18	—
19	Steering wheel heater
20	Roof vent
21	Heated seats
22	—
23	—
24	—
25	—
26	—
27	—
28	—
29	—
30	—
31	Acoustic system
32	Active Damping System, Lane Departure Warning System

Table 1 shows the purpose of these fuses and fuse links, but some circuits listed in the table may not be present on a particular vehicle model.

Fig. 2. Designations of fuses and fusible links installed in the engine compartment mounting block

The designations of the fuses and fusible links of the mounting block installed in the engine compartment are shown in Fig. 2.

Table 2. Purpose of fuses and fusible links installed in the engine compartment mounting block

№	Protected circuits
1	Engine control unit
2	Oxygen concentration sensor
3	Fuel injection, ignition system
4	Fuel injection, ignition system
5	—
6	Heated mirrors
7	Fan controller
8	Oxygen concentration sensor
9	Rear window sensor
10	Battery sensor
11	Trunk opening lever
12	Adaptive Front Lighting Module
13	—
14	Rear window cleaner
15	Engine control unit
16	Starter
17	Gearbox control unit
18	Rear window heating
19	Front electric windows
20	Rear electric windows
21	ABS
22	Left headlight (high beam)
23	Headlight washer
24	Right headlight (low beam, xenon)
25	Left headlight (low beam, xenon)
26	Fog lights
27	Heating of diesel fuel
28	—
29	Electric parking brake
30	ABS
31	—
32	Airbag
33	Adaptive headlight system
34	—
35	Electric windows
36	—
37	Evaporative Evaporative Canister Purge Solenoid Valve
38	Vacuum pump
39	Fuel injection system control unit
40	Windscreen washer, rear window washer
41	Right headlight (high beam)
42	Radiator fan of the engine cooling system
43	Windscreen cleaner
44	—
45	Engine cooling fan
46	—
47	Sound signal
48	Radiator fan of the engine cooling system
49	Fuel pump
50	Headlight corrector
51	Throttle assembly
52	Heating of crankcase gases
53	Transmission Control Module, Engine Control Module
54	Electrical wiring inspection

Table 2 shows the purpose of these fuses and fuse links, but some circuits listed in the table may not be present on a specific vehicle model.

Fig. 3. Designations of fuses and fusible links installed in the instrument panel mounting block

The designations of the fuses and fusible links of the mounting block installed in the instrument panel are given in Fig. 3.

Table 3. Purpose of fuses and fusible links installed in the instrument panel mounting block

№	Protected circuits
1	Display
2	Outdoor lighting
3	Same
4	Audio system
5	Information and measuring system
6	Front power socket
7	Rear power socket
8	Left headlight (low beam, halogen)
9	Right headlight (low beam, halogen)
10	Door locks
11	Heating systems (ventilation) and air conditioning
12	—
13	—
14	Diagnostic connector
15	Airbag
16	—
17	Air conditioner
18	—
19	Brake lights, reversing lights, interior lights
20	—
21	Devices
22	Ignition switch
23	Body electrical equipment control unit
24	Same
25	—
26	—

Table 3 shows the purpose of these fuses and fuse links, but some circuits listed in the table may not be present on a specific vehicle model.

1. To gain access to the mounting block located in the trunk, turn the hatch cover lock in the left side trim by 90°…

2. …and fold the lid down.

3. To gain access to the mounting block located in the engine compartment, use a screwdriver to press the two fasteners…

4. …and remove its cover.

5. To gain access to the mounting block located in the instrument panel, remove the left glove compartment (see Removal and installation storage boxes).

The inside of the cover of the fuse box located in the engine compartment has a diagram of the location of the fuses and fusible links.

A pair of tweezers is attached to a special socket in the housing of this mounting block A to remove fuses.

6. Before replacing a blown fuse or fusible link, determine the cause of the blown fuse and eliminate it. When searching for a fault, look at the circuits listed in Tables 1–3 that are protected by the fuse or fusible link.

Warning! Do not replace fuses with fuses rated for a different amperage or with homemade jumpers - this may damage electrical equipment and even cause a fire.

Warning! Do not replace fuses with fuses rated for a different amperage or with homemade jumpers -…

7. Remove the tweezers from the base of the mounting block located in the engine compartment.

8. Grasp the fuse with tweezers…

9. …and remove it from the connector.

This is what a blown fuse looks like (the jumper shown by the arrow inside the holder has burned out and opened).

To replace a fuse, use a spare fuse of the same rating (and color).

10. Install a fuse of the same rating as the one removed into the contact connector.

10. Install a fuse of the same rating as the one removed into the contact connector.

11. If replacement is necessary, remove the relay from the mounting block by rocking it from side to side..

12. …and install a new relay.

13. Replace fuse links in the same way as replacing relays.

For replacement power fuse do the following.

[Material provided by this website: OpelBook]

You will need a 13 mm socket head.