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Chevrolet Silverado Hybrid - fuse box diagram

avatar Jonathan Yarden Mar 27, 2021 · 5 min. read

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 access door is located on the driver side edge of the instrument panel.

Chevrolet Silverado mk2 - fuse box - instrument panel

Fuses Usage
1 Rear Seats
2 Rear Accessory Power Outlet
3 Steering Wheel Controls Backlight
4 Driver Door Module
5 Dome Lamps, Driver Side Turn Signal
6 Driver Side Turn Signal, Stoplamp
7 Instrument Panel Back Lighting
8 Passenger Side Turn Signal, Stoplamp
9 Passenger Door Module, Driver Unlock
10 Power Door Lock 2 (Unlock Feature)
11 Power Door Lock 2 (Lock Feature)
12 Stoplamps, Center-High Mounted Stoplamp
13 Rear Climate Controls
14 Power Mirror
15 Body Control Module (BCM)
16 Accessory Power Outlets
17 Interior Lamps
18 Power Door Lock 1 (Unlock Feature)
19 Rear Seat Entertainment
20 Ultrasonic Rear Parking Assist, Power Liftgate
21 Power Door Lock 1 (Lock Feature)
22 Driver Information Center (DIC)
23 Rear Wiper
24 Cooled Seats
25 Driver Seat Module, Remote Keyless Entry System
26 Driver Power Door Lock (Unlock Feature)
Circuit Breaker Usage
LT DR Driver Side Power Window Circuit Breaker
Harness Connector Usage
LT DR Driver Door Harness Connection
BODY Harness Connector
BODY Harness Connector

Center Instrument Panel Fuse Block

The center instrument panel fuse block is located underneath the instrument panel, to the left of the steering column.

Chevrolet Silverado mk2 - fuse box - center instrument panel - top view

Harness Connector Usage
BODY 2 Body Harness Connector 2
BODY 1 Body Harness Connector 1
BODY 3 Body Harness Connector 3
HEADLINER 3 Headliner Harness Connector 3
HEADLINER 2 Headliner Harness Connector 2
HEADLINER 1 Headliner Harness Connector 1
SEO/UPFITTER Special Equipment Option Upfitter Harness Connector

 

Circuit Breaker Usage
CB1 Passenger Side Power Window Circuit Breaker
CB2 Passenger Seat Circuit Breaker
CB3 Driver Seat Circuit Breaker
CB4 Rear Sliding Window

Underhood Fuse Block

The underhood fuse block is located in the engine compartment, on the driver side of the vehicle.

Chevrolet Silverado - fuse box - underhood fuse block

Fuses Usage
1 Right Trailer Stop/Turn Lamp
2 Electronic Suspension Control, Automatic Level Control Exhaust
3 Left Trailer Stop/Turn Lamp
4 Engine Controls
5 Engine Control Module, Throttle Control
6 Trailer Brake Controller
7 Front Washer
8 Oxygen Sensor
9 Antilock Brakes System 2
10 Trailer Back-up Lamps
11 Driver Side Low-Beam Headlamp
12 Engine Control Module (Battery)
13 Fuel Injectors, Ignition Coils (Right Side)
14 Transmission Control Module (Battery)
15 Vehicle Back-up Lamps
16 Passenger Side Low-Beam Headlamp
17 Air Conditioning Compressor
18 Oxygen Sensors
19 Transmission Controls (Ignition)
20 Fuel Pump
21 Fuel System Control Module
22 Not Used
23 Not Used
24 Fuel Injectors, Ignition Coils (Left Side)
25 Trailer Park Lamps
26 Driver Side Park Lamps
27 Passenger Side Park Lamps
28 Fog Lamps
29 Horn
30 Passenger Side High-Beam Headlamp
31 Daytime Running Lamps (DRL)
32 Driver Side High-Beam Headlamp
33 Daytime Running Lights 2
34 Sunroof
35 Key Ignition System, Theft Deterrent System
36 Windshield Wiper
37 SEO B2 Upfitter Usage (Battery)
38 Electric Adjustable Pedals
39 Climate Controls (Battery)
40 Airbag System (Ignition)
41 Amplifier
42 Audio System
43 Miscellaneous (Ignition), Cruise Control
44 Not Used
45 Airbag System (Battery)
46 Instrument Panel Cluster
47 Power Take-Off
48 Auxiliary Climate Control (Ignition)
49 Center High-Mounted Stoplamp (CHMSL)
50 Rear Defogger
51 Heated Mirrors
52 SEO B1 Upfitter Usage (Battery)
53 Cigarette Lighter, Auxiliary Power Outlet
54 SEO Upfitter Usage
55 Climate Controls (Ignition)
56 Engine Control Module, Secondary Fuel Pump (Ignition)

 

J-Case Fuses Usage
57 Cooling Fan 1
58 Not Used
59 Heavy Duty Antilock Brake System
60 Cooling Fan 2
61 Antilock Brake System 1
62 Starter
63 Stud 2 (Trailer Brakes)
64 Left Bussed Electrical Center 1
65 Not Used
66 Heated Windshield Washer System
67 Transfer Case
68 Stud 1 (Trailer Connector Battery Power) (Optional – 40A Fuse Required)
69 Mid-Bussed Electrical Center 1
70 Climate Control Blower
71 Not Used
72 Left Bussed Electrical Center 2

 

Relays Usage
FAN HI Cooling Fan High Speed
FAN LO Cooling Fan Low Speed
FAN CNTRL Cooling Fan Control
HDLP LO/HI Low-Beam Headlamp
FOG LAMP Front Fog Lamps
A/C CMPRSR Air Conditioning Compressor
STRTR Starter
PWR/TRN Powertrain
FUEL PMP Fuel Pump
PRK LAMP Parking Lamps
REAR DEFOG Rear Defogger
RUN/CRANK Switched Power

Hybrid Auxiliary Underhood Fuse Block

The hybrid underhood fuse block is located in the engine compartment near the front of the vehicle.

Fuses Usage
1 ACPO (SUV Only)
2 BECM FAN
3 ACCM
4 CAB HTR PMP
5 EMPTY
6 COOL PUMP
7 EPS
8 Drive Motor/Generator Control Module 1
9 Drive Motor/Generator Control Module 2
10 BECM

 

J-Case Usage
FAN 1 Cooling Fan 1
TRANS PUMP Auxiliary Transmission Fluid Pump
FAN 2 Cooling Fan 2
CAB HTR PMP Cab Heater Pump

 

Relays Usage
FAN LOW Cooling Fan Low Speed Relay
FAN MID 1 Cooling Fan Mid 1
FAN HI Cooling Fan High Speed Relay
FAN MID 2 Cooling Fan Mid 2
FAN CNTRL Cooling Fan Control

WARNING: Terminal and harness assignments for individual connectors will vary depending on vehicle equipment level, model, and market.

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