In this article you will find a description of fuses and relays Chevrolet,
with photos of block diagrams and their locations.
Highlighted the cigarette lighter fuse (as the most popular thing people look for).
Get tips on blown fuses, replacing a fuse, and more.
Engine Compartment Fuse Block
The engine compartment fuse block is on the driver side of the engine compartment, near the battery.
Fuses | Usage |
1 | â |
2 | â |
3 | Antilock brake system pump |
4 | AC DC inverter |
6 | Trunk |
7 | Anti-theft warning siren/Horn |
8 | Window/Mirror/Seats |
9 | Electric brake boost |
10 | AOS/AirbagâHEV |
11 | DC DC battery 1 |
12 | Rear defogger |
13 | Heated mirror |
14 | â |
15 | Passive entry/Passive start |
16 | Front wiper |
17 | Passenger power seat |
18 | Antilock brake system valve |
19 | Driver power seat |
21 | Sunroof |
22 | Parking lamp |
23 | Active headlamp leveling |
24 | â |
26 | Transmission control module/Ignition |
27 | Instrument panel body/Ignition |
28 | â |
29 | Regulated voltage control/Ventilation |
30 | Malfunction indicator lamp/SS |
32 | CVS |
33 | Front heated seat |
34 | BSM/ESS fan |
35 | Body control module 6/Body control module 7 |
37 | Fuel module |
38 | â |
39 | â |
40 | Steering column lock |
41 | â |
43 | Heated steering wheel |
44 | Active headlamp leveling |
45 | â |
46 | Engine control module/Ignition |
47 | â |
48 | Electric brake boostâHEV |
49 | DC DC battery 2 |
50 | â |
51 | â |
52 | â |
53 | â |
54 | â |
55 | â |
56 | Starter motor |
57 | Transmission auxiliary pump |
58 | â |
59 | High-beam headlamps |
60 | Cooling fan |
61 | â |
62 | â |
63 | â |
65 | Air conditioningâHEV |
67 | â |
68 | â |
69 | Right low-beam HIDÂ headlamp |
70 | Left low-beam HIDÂ headlamp |
72 | Starter pinion |
74 | â |
75 | Engine control module |
76 | Powertrain off engine |
78 | Horn |
79 | Washer pump |
81 | Transmission control module/Engine control module |
82 | â |
83 | Ignition coil |
84 | Powertrain on engine |
85 | Engine control module switch 2 |
86 | Engine control module switch 1 |
87 | SAIR pump |
88 | Aeroshutter |
89 | Headlamp washer |
91 | â |
92 | Traction power inverter module/Motor generator unit pump |
93 | Active headlamp leveling |
95 | SAIR solenoid |
96 | Fuel heater |
97 | â |
99 | Coolant pump |
Â
Relays | Usage |
4 | AC DC inverter |
20 | Rear defogger |
25 | Front wiper control |
31 | Run/Crank |
37 | Front wiper speed |
42 | Transmission auxiliary pump |
64 | Starter motor |
68 | Powertrain |
71 | Low-beam HIDÂ headlamps |
73 | Air conditioning |
80 | Starter pinion/Starter motor |
90 | SAI reaction solenoid |
94 | Headlamp washer |
98 | SAI reaction pump |
Instrument Panel Fuse Block
The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.
Fuses | Ampere rating [A] | Usage |
F1 | 30 | Left power windows |
F2 | 30 | Right power windows |
F3 | â | â |
F4 | 40 | Heating, ventilation, and air conditioning blower |
F5 | 15 | Body control module 2 |
F6 | â | Left rear heated seat |
F7 | â | Right rear heated seat |
F8 | 15 | Body control module 3 |
F9 | 5 | Engine control module/Rear battery |
F10 | 15 | Body control module 2Â (w/ Stop/Start option) |
F11 | â | â |
F12 | â | â |
F13 | â | â |
F14 | â | â |
F15 | 20 | Transmission control module ( w/ Stop/Start option) |
F16 | 30 | Amplifier |
F17 | â | Seat power lumbar |
F18 | â | OnStar |
F19 | â | â |
F20 | 15 | Body control module 1 |
F21 | 15 | Body control module 4 |
F22 | â | â |
F23 | 10 | Electric steering column lock â China and Russia only |
F24 | 10 | Airbag |
F25 | 7,5 | Data link connector |
F26 | â | â |
F27 | 30 | AC DC inverter |
F28 | â | â |
F29 | 20 | Body control module 8 |
F30 | 10 | Overhead console |
F31 | 2 | Steering wheel controls |
F32 | â | â |
F33 | 10 | Heating, ventilation, and air conditioning |
F34 | â | Gateway |
F35 | â | â |
F36 | 5 | Wireless charger |
F37 | 20 | Front accessory power outlets/ Cigar lighter (China only) |
F38 | 5 | OnStar |
F39 | 7,5 | Display |
F40 | 10 | Obstacle detection |
F41 | 15 | Body control module 1Â (w/ Stop/Start option) |
F42 | 15 | Radio |
CB1 | â | â |
CB2 | 15 | Console accessory power outlet |
Â
Relays | Usage |
K1 | â |
K2 | Retained accessory power relay |
K3 | â |
K4 | â |
K5 | â |
Â
WARNING:Â Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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