Location of fuses, fuse links, relays and their replacement (Chevrolet Cruze J300)

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 engine compartment (fig. 10.1, mounting block cover removed), The purpose of the fuses and relays in the mounting block located in the engine compartment is shown in Table 10.1. In addition, fuses are located in the mounting block located in the passenger compartment of the car, in the instrument panel on the left side (Fig. 10.2). The circuits protected by these fuses are shown in Table 10.2.

Note: Depending on the vehicle modification, the arrangement of fuses and relays in the mounting blocks may be different. The numbering order remains the same. A description of the circuits protected by the fuses can be found in the operating manual supplied with the vehicle.

Table 10.1. Purpose of fuses, fuse links and relays in the mounting block located in the engine compartment

Fuse/Relay Number	Current strength, A	Protected circuit
Fuses
1	15	Gearbox control unit
2	15	Engine control unit
3	-	Not used
4	10	Electromagnetic air valve of the adsorber
5	15	Ignition
7	-	Not used
8	15	Fuel injection system
9	15	Fuel injection system, ignition system
10	15	Engine control unit
11	10	Oxygen concentration sensor
13	7,5	Evaporative emission solenoid valve
14		Not used
15	20	Rear window cleaner
16	7,5	Ignition, cabin air quality sensor
		(air conditioning system)
17	5	Ignition, airbag
18	10	Throttle position sensor
19	-	Not used
20	20	Fuel pump
22, 23,29	-	Not used
30	15	ABS
31	20	Body equipment control unit
32	20	Same
33	30	Heated front seats
34	25	Roof hatch
35	30	Audio system
36	-	Not used
37	10	Right high beam headlight
38	10	Left high beam headlight
39,40	-	Not used
46	10	Cooling system fan
47	10	Oxygen concentration sensor
48	15	Fog lights
49,50	-	Not used
51	15	Sound signal
52	15	Dashboard
53	10	Electrochromic mirror
54	5	Light switch,
		control of lighting devices
55	7,5	Folding mirrors
56	15	Windshield washer
57	15	Steering column lock
58	-	Not used
60	7,5	Mirror heater
61	7,5	Mirror heater
62	10	Air condition
63	7,5	Rear window sensor
64	5	Air quality sensor
65	7,5	Rear fog lights
66	15	Rear window washer
67	20	Fuel injection control unit
68	-	Not used
69	5	Battery voltage sensor
70	5	Rain sensor
71	-	Not used
Fusible links
6	30	Windscreen cleaner
12	30	Starter solenoid relay
21	30	Rear electric windows
22	-	Not used
24	30	Front electric windows
25	20	Electronically controlled vacuum pump
26	40	ABS
27	30	Electronic key management system
28	40	Rear window heating
41	-	Not used
42	40/30/20	Engine cooling fan
43,44	-	Not used
45	40	Engine cooling fan
59	30	Diesel Fuel Heater
Relay
R1		Air conditioning compressor drive clutch
R2	-	Starter solenoid relay
R3	-	Engine cooling fan (K7)
R4	-	Front windshield wiper mode (speed) relay
R5	-	Front windshield wipers
R6	-	Not used
R7	-	Smooth relay of the engine management system
R8		Fuel pump
R9	-	Engine cooling system fan (K2)
R10	-	Engine cooling system fan (K3)
R11	-	Not used
R12	-	Engine cooling system fan (K3)
R13	-	Engine cooling system fan (K1)
R14	-	Not used
R15	-	Ignition
R16	-	Pre-heating system (diesel)
R17	-	Heated exterior rear view mirrors

Table 10.2. Purpose of fuses and fusible links in the mounting block located in the vehicle interior

Fuse/link number	Current strength, A	Protected circuit
Fuses
1	10	Infotainment system, hands-free telephone
2	-	Not used
3	25	Body equipment control unit
4	20	Infotainment system
5	7,5	Information display, parking assistance system
6	20	Cigarette lighter
7	20	Plug socket
8	30	Body equipment control unit
9	30	Body equipment control unit
14	5	Diagnostic connector
15	10	Airbag
16	10	Central locking, rear tailgate
17	15	Air conditioner
18	-	Not used
19	5	Gear shift lever
20	-	Not used
21	15	Devices
22	2	Ignition, electronic key control system
23	20	Body equipment control unit
24	20	Body equipment control unit
25	20	Steering column lock
26	-	Not used
Fusible links
10	30	Body equipment control unit
11	40	Electric fan for interior heating and air conditioning system
12	-	Not used
13	25	Heated seats

1. To access the fuse box located in the passenger compartment, open the small item storage box, pull the box up...



2. ...and remove the lower part of the glove box from the stops in the panel.





3. Remove the glove box to gain access to the fuse box located in the passenger compartment.

Note: The fuse box has a diagram of the fuse locations on the inside.

4. To gain access to the fuse box located in the engine compartment, press the three fasteners on the fuse box cover...



5. ...and remove the lid.

Note: The inside of the cover of the relay and fuse box located in the engine compartment contains a diagram of the location of the relays, fuses and fusible links.

The mounting block is equipped with tweezers for removing fuses from mounting blocks.

6. Before replacing a blown fuse, find out the cause of the blown fuse and eliminate it. When searching for a fault, look at the circuits specified in Tables 10.1 and 10.2 that this fuse protects. If the new fuse blows again after a short time, the electrical equipment should be checked at a service center.

Fuse markings

Color	Current strength, A
Light brown	5
Brown	7,5
Red	10
Blue	15
Yellow	20
White or transparent	25
Green	30
Orange	40

Warning: Do not replace blown fuses with jumpers or fuses rated for a different amperage, as this may cause damage to electrical circuits and equipment, or even cause a fire.

7. Use tweezers to grab the fuse...



8. ...and pull it out of the connector.



9. Install a new fuse of the same rating as the one removed into the connector.



10. If replacement is necessary, remove the relay from the mounting block by rocking it from side to side and install a new one.

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

The original text can be found on the website «chevyman»