Chevrolet Express – fuse box diagram

 

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

 

Floor console fuse block

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

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.

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.