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Chevrolet Express (2003 - 2008) - 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.

 

Year of production: 2003, 2004, 2005, 2006, 2007, 2008

 

Floor console fuse block

The floor console fuse block is located under the driver seat.

Chevrolet Express - fuse box - floor console fuse block

Fuse Usage
1 Climate Control 2 (HVAC)
2 Compass
3 Ignition Switch, Theft Deterrent System Module (PK3)
4 Upfitter Courtesy Lamps
5 Climate Control 1 (HVAC)
6 Empty
7 Instrument Panel Cluster
8 Audio System, Chime
9 Auxiliary Park Lamp
10 Auxiliary Trailer Back-up Lamps
11 Remote Function Actuator, Tire Pressure Monitor (TPM)
12 Climate Control (HVAC) Controls
13 Trailer Park Lamps
14 Front Park Lamps
15 Taillamps, Back-up Lamps
16 Empty
17 Steering Wheel Sensor
18 Outside Rearview Mirror Switch
19 Empty
20 Empty
21 Rear Defogger
22 Outside Rearview Mirror Heater
23 Empty
24 Empty
25 Cargo Door Unlock
26 Rear Door Lock
27 Front Door Lock
28 Rear Passenger Door Unlock
29 Upfitter Park Lamps
30 Front Passenger Door Unlock
31 Driver Door Unlock
32 Airbag System, Automatic Occupant Sensing (AOS) System
33 Right Rear Park Lamp
34 Left Rear Park Lamp
35 Upfitter Auxiliary 2 (J-Case)
36 Upfitter Auxiliary 1 (J-Case)
37 Rear Blower (J-Case)
38 Empty (J-Case)
39 Run (High Current Micro)
40 Park Lamps (High Current Micro)
41 Empty (Mini Micro)
42 Upfitter Auxiliary 2 (High Current ISO Relay)
43 Retained Accessory Power (RAP) (High Current Micro)
44 Rear Defogger (High Current Micro)

 

 

Circuit Breaker Usage
45 Power Window
46 Power Seats

 

Engine compartment fuse block

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

Chevrolet Express - fuse box - engine compartment fuse block

Fuse Usage
1 Left High-Beam Headlamp
2 Fuel Pump
3 Empty
4 Fuel Heater (Diesel)
5 Right High-Beam Headlamp
6 Empty
7 Left Low-Beam Headlamp
8 Right Stoplamp, Trailer Turn Signal
9 Right Low-Beam Headlamp
10 Daytime Running Lamps 2 (DRL)
11 Fuel System Control Module Ignition (Gas)
12 Daytime Running Lamps 1 (DRL)
13 Auxiliary Stoplamp
14 Fuel Operated Heater Module (Diesel)
15 Fuel System Control Module Battery (Gas)
16 Left Stoplamp, Trailer Turn Signal
17 Canister Vent Solenoid (Gas)
18 Empty
19 Empty
20 Body Control Module 1
21 Special Equipment Option (SEO)
22 Body Control Module 4
23 Body Control Module 6
24 Empty
25 Body Control Module 7
26 Body Control Module 3
27 Body Control Module 5
28 Empty
29 Empty
30 Instrument Panel Cluster
31 Empty
32 Brake Switch
33 Auxiliary Power Outlet
34 Airbag
35 Trailer Wiring
36 Steering Wheel Sensor (Gas)
37 Body Control Module 2
38 Cigarette Lighter, Data Link Controller
39 Windshield Wiper
40 Empty
41 Windshield Washer
42 Empty
43 Horn
44 Transmission Control Module Battery
45 Empty
46 Oxygen Sensor 1 (Gas)
47 Transmission Control Module Ignition
48 Engine Control Module Ignition
49 Mass Airflow Sensor, Canister Vent
50 Engine Control Module, Powertrain
51 Transmission
52 Even Ignition Injectors (Gas)
53 Glow Plug Module (Diesel)
54 Engine Control Module Battery
55 Odd Ignition Injectors (Gas)
56 Oxygen Sensor 2 (Gas)
57 Air Conditioning Compressor
58 Fan Clutch (Diesel)
59 V6 Fuel Injectors (Gas)
60 Antilock Brake System Module (J-Case)
61 Antilock Brake System Motor (J-Case)
62 Trailer Wiring (J-Case)
63 Empty
64 Starter Solenoid (J-Case)
65 Engine Control Module (ECM), Powertrain (Diesel) (J-Case)
66 Front Blower (J-Case)
67 Empty
77 Body BEC (Mega Fuse)

 

Relays Usage
68 Empty
69 Run, Crank (High Current Micro)
70 Windshield Wiper High (High Current Micro)
71 Windshield Wiper (High Current Micro)
72 Fuel Pump (Mini Micro)
73 Crank (High Current Micro)
74 Air Conditioning Compressor (Mini Micro)
75 Fan Clutch (Diesel) (Solid State)
76 Powertrain (High Current Micro)

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

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