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 located on the driver’s side of the vehicle, near the battery.
Mini Fuses | Usage |
1 | Transmission Control Module Battery |
2 | Engine Control Module Battery |
3 | Air Conditioning Compressor Clutch |
5 | Engine Control Module Ignition |
8 | Spare |
9 | Ignition Coils |
10 | Engine Control Module |
11 | Emissions |
13 | Transmission Module Ignition |
14 | Cabin Heater Coolant Pump/SAIR Solenoid |
15 | MGU Coolant Pump |
16 | Aero Shutter/eAssist Ignition |
17 | SDM Ignition |
18 | Spare |
23 | eAssist Module |
30 | Left Seat Power Lumber Control |
31 | eAssist Module/Chassis Control Module |
32 | Back-Up Lamps/Interior Lamps |
33 | Front Heated Seats |
34 | Antilock Brake System Valve |
35 | Amplifier |
37 | Right High Beam |
38 | Left High Beam |
46 | Cooling Fan |
47 | Emissions |
48 | Foglamp |
49 | Low Beam HID Headlamp Right |
50 | Low Beam HID Headlamp Left |
51 | Horn/Dual Horn |
52 | Cluster Ignition |
53 | Inside Rearview Mirror/Rear Camera/Fuel Module Ignition |
54 | Heating, Ventilation, and Air Conditioning Module Ignition |
55 | Front Power Windows/Mirrors |
56 | Windshield Washer |
57 | Spare |
60 | Heated Mirror |
62 | Canister Vent Solenoid |
66 | SAIR Solenoid |
67 | Fuel Module |
69 | Battery Voltage Sensor |
70 | Lane Departure/Rear Parking Aid |
71 | PEPS BATT |
J-Case Fuses | Usage |
6 | Front Wiper |
12 | Starter |
21 | Rear Power Window |
22 | Sunroof |
24 | Front Power Window |
25 | PEPS MTR |
26 | Antilock Brake System Pump |
27 | Electric Parking Brake |
28 | Rear Defogger |
41 | Brake Vacuum Pump |
42 | Cooling Fan K2 |
44 | Transmission Auxiliary Pump (eAssist) |
45 | Cooling Fan K1 |
59 | Air Pump Emissions |
Mini Relays | Usage |
7 | Powertrain |
9 | Cooling Fan K2 |
13 | Cooling Fan K1 |
15 | Run/Crank |
16 | Air Pump Emissions |
17 | Window/Mirror Defogger |
Micro Relays | Usage |
1 | Air Conditioning Compressor Clutch |
2 | Starter Solenoid |
4 | Front Wiper Speed |
5 | Front Wiper On |
6 | Cabin Pump eAssist/SAIR Solenoid |
10 | Cooling Fan K3 |
11 | Transmission Oil Pump |
14 | Headlamp Low Beam/DRL |
Instrument Panel Fuse Block
The instrument panel fuse block is located at on the lower front side of the console, on the passenger side of the vehicle.
Fuses | Usage |
1 | Steering Wheel Controls Backlight |
2 | Right Rear Turn Signal, Left Mirror Turn Signal, Left Front Turn Signal, Door Locks |
3 | Left Stoplamp, Left DRL Lamp, Headlamp Control, Right Taillamp, Right Park/Sidemarker Lamps, Right Mirror Turn, Right Front Turn Signals |
4 | Radio |
5 | OnStar |
6 | Front Accessory Power Outlet |
7 | Console Bin Power Outlet |
8 | License Plate Lamp, Center High-Mounted Stoplamp, Rear Fog Lamps, Right Front Park/Sidemarker Lamps, LED Indicator Dim, Washer Pump, Right Stoplamp, Trunk Release |
9 | Left Low-Beam Headlamp, DRL |
10 | Body Control Module 8 (J-Case Fuse), Power Locks |
11 | Front Heater Ventilation Air Conditioning/Blower (J-Case Fuse) |
12 | Passenger Seat (Circuit Breaker) |
13 | Driver Seat (Circuit Breaker) |
14 | Diagnostic Link Connector |
15 | Airbag, SDM |
16 | Trunk Release |
17 | Heater Ventilation Air Conditioning Controller |
18 | Audio Main |
19 | Displays |
20 | Passenger Occupant Sense |
21 | Instrument Cluster |
22 | Ignition Switch |
23 | Right Low-Beam Headlamp, DRL |
24 | Ambient Light, Switch Backlighting (LED), Trunk Lamp, Shift Lock, Key Capture |
25 | 110V AC |
26 | Spare |
Relays | Usage |
K1 | Trunk Release |
K2 | Not Used |
K3 | Power Outlet Relay |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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