Chevrolet Express (2003 – 2005) – fuse box diagram

Year of production: 2003, 2004, 2005

Floor Console Fuse Block

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

Chevrolet Express - wiring diagram - fuse box - floor console fuse block
Chevrolet Express – wiring diagram – fuse box – floor console fuse block
Fuse Usage
1 Spare
2 Outside Rear View Mirror
3 Courtesy Lamp/SEO
4 Left Rear Stop/Turn Signal
5 Cargo Locks
6 Right Rear Stop/Turn Signal
7 Driver Locks
8 Stop/Center High Mounted Stop Lamp
9 Climate Control 1
10 Climate Control
11 Brakes
12 Heated Mirror/Defogger
13 Right Rear Blower
14 Driver Turn Mirror
15 Door Locks
16 Upfitter Park
17 Not Available
18 Left Rear Park Lamp
19 Pass Turn Mirror
20 Right Rear Park Lamp
21 Trailer Park Lamp
22 Front Park Lamp
32 Auxilary 1
33 Auxilary 2

 

Relays Usage
23 Window Residual Accessory Power
24 Auxiliary
25 Right Rear Defogger
26 Courtesy Lamp
27 Cargo Unlock
28 Driver Unlock
29 Park Lamp
30 Door Locks
31 Pass Unlock

 

Circuit Breaker Usage
34 Power Window

Engine Compartment Fuse Relay Center

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

Chevrolet Express - wiring diagram - fuse box -  engine compartment
Chevrolet Express – wiring diagram – fuse box – engine compartment
Fuse Usage
1 Radio Battery
2 Powertrain Control Module Battery
3 Left Rear Turn Lamp
4 Right Rear Turn Lamp
5 Backup Lamps Trailer Wiring
6 Ignition 0
7 Stop Lamp
8 Right Rear Defogger/Heated Mirror
9 Right Daytime Running Lamp/Turn Signal
10 Left Daytime Running Lamp/Turn Signal
11 Truck Body Control Module 4
12 Fuel Pump
13 Trailer
14 Flasher
15 Horn
16 Truck Body Control Module 3
17 Trailer Stop/Turn Signal
18 Truck Body Control Module 2
19 Truck Body Control Module
20 Remote Function Actuator
21 Engine 2
22 Ignition E
23 Engine 1
24 Truck Body Control Module Ignition 1
25 Spare
26 RPA/lnside Rearview Mirror
27 Crankcase
28 Brake Transmission Shift Interlock System
29 Auxiliary Power Outlets
30 Cigarette Lighter
31 Instrument Panel Cluster
32 Air Conditioning
33 Spare
34 Vent
35 Spare
36 Vehicle Back Up
37 Supplemental Inflatable Restraint System
38 Powertrain Control Module Ignition I
39 Oxygen Sensor B
40 Oxygen Sensor A
41 Windshield Wipers
42 Right Headlamp – Low Beam
43 Left Headlamp – Low Beam
44 Left He45adlamp – High Beam
45 Right Headlamp – High Beam
46 Truck Body Control Module-Accessory
47 Front Windshield Wiper
48 Anti-Lock Brakes
49 Ignition A
50 Trailer
51 Climate Control Blower
52 Ignition B
63 Spare
64 Spare

 

Relays Usage
53 Windshield Wiper
54 Air Conditioning
55 Spare
56 Headlamp – High Beam
57 Fuel Pump
58 Headlamp – Low Beam
59 Horn
61 Starter
62 Spare

 

Circuit Breaker Usage
60 Power Window

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