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.
Instrument panel fuse block
The instrument panel fuse block is located on the passenger side of the vehicle, under the instrument panel and under the toe-board.
Fuses | Usage |
SPARE | Spare Fuse |
SPARE | Spare Fuse |
SPARE | Spare Fuse |
SPARE | Spare Fuse |
TPA | Tonneau Pulldown Actuator |
ONSTAR | OnStar® |
DRIV DR SWITCH | Driver Door Switch |
TELE SWTCH/MSM | Telescope Switch, Memory Seat Module |
IGN SWTCH/ INTR SNSR | Ignition Switch, Intrusion Sensor |
BCK/UP LAMP | Reverse Lamps |
REVERSE LAMPS | Reverse Lamps |
Blank | Not Used |
STOP LAMP | Stop Lamp |
BTSI SOL/STR WHL LCK | Brake Transmission Shift Interlock, Steering Wheel Column Lock |
BLANK | Not Used |
RDO/S-BAND/ VICS | Radio, S-Band, VICS |
REAR FOG/ ALDL/TOP SWTCH | Rear Fog Lamp, Assembly Line Diagnostic Link Connector, Convertible Top Switch |
GM LAN RUN/CRNK | GM LAN Devices |
ISRVM/ HVAC | Electric Inside Rearview Mirror, Heating Ventilation, Air Conditioning |
CRUISE SWTCH | Cruise Control Switch |
TONNEAU RELSE | Tonneau Release |
RUN CRNK | Run/Crank Relay |
HTD SEAT/ WPR RLY | Heated Seat, Wiper Relays |
ECM | Engine Control Module |
SDM/AOS SWTCH AIRBAG | Sensing and Diagnostic Module, Automatic Occupant Sensing Module, Airbag |
CLSTR/HUD | Cluster, Heads-Up Display |
HVAC/ PWR SND | Heating, Ventilation/Air Conditioning, Power Sounder |
EXH MDL | Exhaust Module (Z06); Spare (Coupe and Convertible) |
DR LCK | Door Locks |
CTSY/LAMP | Courtesy Lamp |
SWC DM | Steering Wheel Dimming |
TONNEAU RELSE | Tonneau Release |
TRUNK RELSE | Trunk Release |
REAR/FOG | Rear Fog Lamps |
FUEL DR RELSE | Fuel Door Release |
BLANK | Not Used |
BLANK | Not Used |
LTR | Cigarette Lighter |
DRVR HTD SEAT | Driver Heated Seat |
WPR DWELL | Wiper Dwell |
BLANK | Not Used |
AUX PWR | Auxiliary Power |
PASS HTD SEAT | Passenger Heated Seat |
BLANK | Not Used |
PWR/ WNDWS/ TRUNK/FUEL RELSE | Power Windows, Trunk, Fuel Door Release |
TRUNK RELSE | Trunk Release |
BLANK | Not Used |
BLANK | Not Used |
PWR SEATS MSM | Power Seats, Memory Seat Module |
BLANK | Not Used |
BLANK | Not Used |
WPR/WSW | Windshield Wiper/Washer |
BLANK | Not Used |
Engine compartment fuse block
Fuse block k in the engine compartment located on the passenger side of the vehicle.
Fuse | Usage |
1 | Transmission Control Module/ Transmission |
2 | Horn, Alternator Sense |
3 | Antilock Brakes/Real Time Damping |
4 | Wiper |
5 | Stoplamps/Back-Up Lamps |
6 | 02 Sensor |
7 | Battery Main 5 |
8 | Park Lamps |
9 | Powertrain Relay Input/Electronic Throttle Control |
10 | Manual Transmission Solenoids |
11 | Engine Control Module/Transmission Control Module/Easy Key Module |
12 | Odd Numbered Fuel Injectors |
13 | Electronic Suspension Control (Option) |
14 | Canister Purge Solenoid, Mass Air Flow Sensor |
15 | Air Conditioner Compressor |
16 | Even Numbered Fuel Injectors |
17 | Windshield Washer |
18 | Headlamp Washer |
19 | Passenger Side Low-Beam Headlamp |
20 | Fuel Pump |
21 | Driver Side Low-Beam Headlamp |
22 | Front Fog Lamp |
23 | Passenger Side High-Beam Headlamp |
24 | Driver Side High-Beam Headlamp |
J-Style fuses | Usage |
25 | Cooling Fan |
26 | Battery Main 3 |
27 | Antilock Brake System |
28 | Heating/Ventilation/Air Conditioning Blower |
29 | Battery Main 2 |
30 | Starter |
31 | Audio Amplifier |
32 | Blank |
33 | Battery Main 1 |
Micro-Relays | Usage |
34 | Horn |
35 | Air Conditioning Compressor |
36 | Windshield Washer |
37 | Park, Position Lamps |
38 | Front Fog Lamp |
39 | High-Beam Headlamp |
46 | Headlamp Washer |
55 | Fuel Pump |
Mini-Relays | Usage |
40 | Rear Defog |
41 | Windshield Wiper High/Low |
42 | Windshield Wiper Run/Accessory |
43 | Crank |
44 | Powertrain Ignition 1 |
45 | Windshield Wiper On/Of |
47 | Low-Beam Headlamp |
Spare Fuses | Usage |
48 | Spare |
49 | Spare |
50 | Spare |
51 | Spare |
52 | Spare |
53 | Spare |
54 | Fuse Puller |
Diodes | Usage |
Diode 1 | |
Wiper | |
Diode 2 |
WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.
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