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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.
Mini Fuses | Usage |
1 | Transmission Control Module Battery |
2 | Engine Control Module Battery |
3 | Air Conditioning Compressor Clutch |
4 | Engine Control Module BATT 1 |
5 | Engine Control Module Ignition |
7 | Cool Pump |
8 | Ignition Coils – Even |
9 | Ignition Coils – Odd |
10 | Engine Control Module |
11 | Emissions |
13 | Transmission Control Module/Chassis Control Module Ignition |
14 | SAIR Solenoid |
15 | Not Used |
16 | Aero Shutter |
17 | Seat Cooling Fans/ Heated Steering Wheel |
18 | Battery Disconnect Unit |
19 | Aero Shutter |
23 | Adaptive Cruise Control |
29 | Passive Entry/Passive Start Battery |
30 | Canister Vent Solenoid |
31 | Left Front Heated Seat |
32 | Right Rear Stop. Turn Tail Lamp, RAP Relay, Ambient Lighting Control, Interior Switch Backlighting |
33 | Right Front Heated Seat |
34 | Antilock Brake System Valve |
35 | Amplifier |
37 | Right High Beam |
38 | Left High Beam |
46 | Cooling Fan |
47 | Emissions |
48 | Not Used |
49 | Right HID Lighting |
50 | Left HID Lighting |
51 | Horn/Dual Horn |
52 | Cluster Ignition |
53 | Inside Rearview Mirror/Rear Camera |
54 | Reflected LED Display, Console LED Display, Heating, Ventilation and Air Conditioning Module |
55 | Outside Rearview Mirror |
56 | Windshield Washer |
60 | Heated Mirror |
62 | Rear Camera/Park Assist/Side Blind Zone Alert |
66 | Trunk Release |
67 | Chassis Control Module |
69 | Battery Voltage Sensor |
70 | Not Used |
71 | Memory Seat |
J-Case Fuses | Usage |
6 | Front Wiper |
12 | Starter |
21 | Rear Power Window |
22 | Sunroof |
24 | Front Power Window |
25 | Accessory Relay |
26 | Antilock Brake System Pump |
27 | Electric Parking Brake |
28 | Rear Defogger |
41 | 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 Control |
6 | Air Pump Solenoid Emissions/Cabin Pump (eAssist) |
10 | Cooling Fan K3 |
11 | Transmission Oil Pump (eAssist) |
14 | Low Beam HID |
22 | Air Pump Solenoid Emissions (eAssist) |
Instrument Panel Fuse Block
The instrument panel fuse block is in the instrument panel, on the driver side of the vehicle.
Mini Fuses | Usage |
1 | Telematics |
2 | Rear Turn Stoplamp, Courtesy Lamps, Back-up Lamps, Shift Lock Solenoid, Puddle Lamps |
3 | LED Indicator Light |
4 | Radio |
5 | Display |
6 | Power Outlet – Console Bin |
7 | Power Outlet – Forward/ Console Rear |
8 | Trunk Release, Brake Pedal Apply, Keyless Start Indicators, Hazard Switch Illumination, CHMSL/Brake Relay, Sidemarker Lamps, Washer Relay, Run/Crank Relay |
9 | Trunk Lamp, Right Low Beam/DRL, Right Front Turn Lamp, Right Rear Park/Stoplamp |
14 | Diagnostic Link Connector |
15 | Airbag/SDM |
16 | Not Used |
17 | Heater, Ventilation and Air Conditioning Controller |
18 | Logistics |
19 | Not Used |
20 | Ignition Switch |
21 | Not Used |
22 | Steering Wheel Controls |
23 | Left Low Beam/DRL, Left Front Turn Lamp, Left Rear Park/Stoplamp, Child Lock Relay |
24 | Theft Deterrent LED, Key Capture Solenoid, Run Relay |
25 | Tilt/Telescope Steering Column |
26 | 110V AC |
J–Case Fuses | Usage |
10 | Door Unlock |
11 | Front Heater, Ventilation, and Air Conditioning Blower |
Circuit Breakers | Usage |
12 | Power Seat– Passenger |
13 | Power Seat–Driver |
Relays | Usage |
K1 | Not Used |
K2 | Logistic |
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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