Chevrolet Express (2003 – 2007) – fuse box diagram

Chevrolet Express (2003 – 2007) – fuse box diagram

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

Passenger Compartment Relay Box

Chevrolet Express - fuse box diagram - pasenger compartment relay box
Chevrolet Express – fuse box diagram – pasenger compartment relay box
No. A Protected Component
1  –
2 10 Outside Rearview Mirror Switch
3 15 Courtesy Lamp Relay
4 10 Left Rear Stop/Turn Signal
5 10 Cargo Unlock Relay
6 10 Right Rear Stop/Turn Signal
7 10 Driver Unlock Relay
8 10 Center High Mounted Stop Lamp (CHMSL), Cruise Control Module (CCM), Throttle Actuator Control Module (TCM (’06-’07)), Transmission Control Module (Diesel), Engine Control Module (Diesel)
9 10 HVAC Control Assembly, Air Temperature Actuator, HVAC Control Processor (’06-’07), Auxiliary Blower Motor Relays (’06-’07), Air/Mode Actuator (’06-’07)
10 20 HVAC Control Assembly, Vacuum Pump (Diesel)
11 10 Electronic Brake Control Module (EBCM), High Idle Switch (’06-’07), Traction Control Switch (’06-’07)
12 30 Rear Window Defogger Relay
13 30 Auxiliary Blower Motor Relays (Low/MED/High Speed)
14 10 Driver Turn Mirror
15 20 Door Lock Relay
16 10 Upfitter Park
17  –
18 10 Left Tail Lamp, License Lamp
19 10 Passengers Turn Mirror
20 10 Right Ttail Lamp
21 15 Trailer Park Lamp
22 10 Inflatable Restraint l/P Module Disable Switch, Front Park/Turn Signal Lamps, Front Marker Lamps
23 50 Upfitter Wiring Harness
20 Cooling Fan (SEO) (’03-’05)
60 Electronic Brake Control Module (EBCM) (’06-’07)
24 50 Auxiliary Relay (YF7)
20 Auxiliary Relay (SEO)
Circuit Breaker
CB1 25 Power Window (Driver/Front Passenger)
Relay
R1 Rear Window Defogger
R2 Front Passenger Lock Actuator, LR/RR Door Lock Actuators
R3 Driver/Front Passenger/Cargo Lock Actuators, LR/RR Door Lock Actuators
R4 Auxiliary Relay
R5 Courtesy Lamp
R6 Cargo Unlock
R7 Driver Unlock
R8 Park Lamp
R9 Window Residual Accessory Power

Engine Compartment Fuse Box

Chevrolet Express - fuse box diagram - engine compartment box
Chevrolet Express – fuse box diagram – engine compartment box
No. A Protected Component
1 15 Radio, Vehicle Communication Interface Module (VCIM (’03-’05)), Chime Module (’06-’07)
2 20 Gasoline: Powertrain Control Module (PCM)
20 Diesel: Engine Control Module (ECM), Transmission Control Module (TCM), Coolant Heater
3 10 Trailer Stop/Turn Relay (Left)
4 10 Trailer Stop/Turn Relay (Right)
5 10 Back-Up Lamps Trailer or C405 (Cutaway)
6 10 Gasoline: Powertrain Control Module (PCM), Automatic Transmission, Body Control Module (BCM)
10 Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Automatic Transmission, Body Control Module (BCM)
7 15 Stop Lamp Switch
8 20 Rear Window Defogger, Heated Mirror
9 10 Right Daytime Running Lamp/Turn Signal
10 10 Left Daytime Running Lamp/Turn Signal
11 15 Body Control Module (BCM)
12 20 Fuel Pump Relay
13 30 Trailer Wiring Harness
14 15 Turn Signal Hazard Flasher Module
15 15 Horn Relay
16 15 Body Control Module (BCM)
17 15 Trailer Stop/Turn Relay (Left and Right)
18 15 Body Control Module (BCM)
19 10 Body Control Module (BCM)
20 10 Remote Control Door Lock Receiver (RCDLR)
21 10 4.8L/5.3L/6.0L (Gasoline): Even Fuel Injectors, Even Ignition Coils
10 4.3L (Gasoline): Even Fuel Injectors, Ignition Coil
22 10 Stop Lamp Switch and A/C Relay
23 15 4.8L/5.3L/6.0L (Gasoline): Odd Fuel Injectors, Odd Ignition Coils, EVAP Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Park/Neutral Position (PNP) Switch
15 4.3L (Gasoline): Odd Fuel Injectors, Ignition Control Module, EVAP Canister Purge Solenoid, Mass Air Flow (MAF) Sensor, Park/Neutral Position (PNP) Switch
10 Diesel: MAF/IAT Sensor, Park/Neutral Position (PNP) Switch
24 10 Body Control Module (BCM)
25 20 Diesel: Fuel Heater
26 10 Inside Rearview Mirror
27 10 Crankcase, Powertrain Control Module (Gasoline), Engine Control Module (Diesel)
28 10 Brake Transmission Shift Interlock System
29 20 Auxiliary Power Outlet
30 15 Cigar Lighter, Data Link Connector (DLC)
31 10 Instrument Panel Cluster (IPC)
32 10 A/C Relay
33 30 Diesel: Engine Control Module (ECM)
34 10 EVAP Canister Vent Solenoid (Gasoline), Rear Fog Lamp Relay
35 10 Diesel: Cooling Fan Relay
36 15 Back-Up Lamps, Park/Neutral Position (PNP) Switch
37 10 Supplemental Inflatable Restraint System
38 15 Gasoline: Powertrain Control Module (PCM), Cruise Control Module (CCM), Throttle Actuator Control (TAC) Module, Steering WheelSpeed/Position Sensor
10 Diesel: Engine Control Module (ECM), Glow Plug Control Module (GPCM), Transmission Control Module
39 15 Gasoline: Oxygen Sensor
40 15 Gasoline: Oxygen Sensor
41 15 Windshield Wipers Relay
42 10 Right Headlamp (Low Beam)
43 10 Left Headlamp (Low Beam)
44 10 Left Headlamp (High Beam)
45 10 Right Headlamp (High Beam )
46 10 Body Control Module (BCM)
47 25 Windshield Wiper Motor
48 60 Electronic Brake Control Module (EBCM)
49 40 Starter Relay, Ignition Switch
50 30 Trailer Wiring Harness
51 40 Blower Motor Resistor
52 40 Ignition Switch
53 10 Diesel: Engine Control Module (ECM)
54  –
55 125 Fuse Block – Body
Circuit Breaker
CB1 30 Power Seat
Relay
R1 Windshield Wiper
R2 Air Conditioning
R3 Rear Fog Lamp
R4 Headlamp (High Beam)
R5 Fuel Pump
R6 Headlamp (Low Beam)
R7 Horn
R8 Starter
R9 Diesel: Engine Control Module (ECM)

Auxiliary Fuse Box

Chevrolet Express - fuse box diagram - auxiliary box
Chevrolet Express – fuse box diagram – auxiliary box
No.
A
Circuit Breaker
2 10 Dome Fluorescent Work Lamps
3 15 Access Panel Relays
4  –
Relay
1 Access Panel Latches (Left Side Rear)
5 Access Panel Latches (Left Side Front)
6 Access Panel Latches (Right Side)

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